The DOI matches its Crossref record; 138 of the 138 references it cites were found in a registry or an index; 22 of the 168 sources its claims cite were checked for support.
Microbial reduction of metals and radionuclides
Open accessAbstract
The microbial reduction of metals has attracted recent interest as these transformations can play crucial roles in the cycling of both inorganic and organic species in a range of environments and, if harnessed, may offer the basis for a wide range of innovative biotechnological processes. Under certain conditions, however, microbial metal reduction can also mobilise toxic metals with potentially calamitous effects on human health. This review focuses on recent research on the reduction of a wide range of metals including Fe(III), Mn(IV) and other more toxic metals such as Cr(VI), Hg(II), Co(III), Pd(II), Au(III), Ag(I), Mo(VI) and V(V). The reduction of metalloids including As(V) and Se(VI) and radionuclides including U(VI), Np(V) and Tc(VII) is also reviewed. Rapid advances over the last decade have resulted in a detailed understanding of some of these transformations at a molecular level. Where known, the mechanisms of metal reduction are discussed, alongside the environmental impact of such transformations and possible biotechnological applications that could utilise these activities.
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Claims the paper makes
83 No full text of the sources · 29 No basis given · 15 Sources not found · 10 Supported · 10 Not checked yet · 8 Partly supported · 7 Own interpretation · 3 Supported so far · 1 Couldn’t confirm · accuracy not yet measured
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Recent studies have shown that several important xenobiotics that contaminate aquifers can also be degraded under anaerobic conditions by Fe(III)-and Mn(IV)-reducing micro-organisms [9,18,19].”
§ Microbial reduction of metals and radionuclides > 2. Reduction of Fe(III) and Mn(IV)
What the sources say
- Not checked — no full text of the sourcecites [9] source
- Not checked — no full text of the sourcecites [18] source
- Partly supportedcites [19] sourceExperimental — accuracy not yet measured
The section ‘BTEX oxidation coupled to Fe(III) reduction’ reports anaerobic degradation of toluene by an Fe(III)-reducing microorganism and evidence for benzene oxidation by Fe(III)-reducing enrichments. The Introduction says BTEX oxidation coupled to Mn(IV) reduction had not been investigated and was considered likely, so the claim overstates the evidence for Mn(IV)-reducing microorganisms. (LLM, conf=0.90)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Thus, Cr(VI) bioreduction seems to be initiated by a one-electron transfer from the reductase.”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
What the sources say
- Not checked — no full text of the sourcecites [61] Suzuki T. Miyata H. Horitsu K. Kawai K. Takamizawa Y. Tai Y. Okazaki M. (1992) NAD(P)H-dependent chromium (VI) reductase of Pseudomonas ambigua G-1: a Cr(V) intermediate is formed during the reduction of Cr(VI) to Cr(III). J. Bacteriol. 174, 5340–5345. source
- Partly supportedcites [62] sourceExperimental — accuracy not yet measured
The Abstract reports that the purified reductase converts Cr(VI) to Cr(III). But the “End product of chromate conversion” section says the assay could not determine whether Cr(V) accumulated, so the paper does not establish that reduction begins with a one-electron transfer. (LLM, conf=0.84)
- Not checked — no full text of the sourcecites [63] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Organisms that are known to reduce Se(VI) enzymatically include W. succinogenes [104], D. desulfuricans [105], Pseudomonas stutzeri [106], E. cloacae [107] and E. coli [108].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [104] source
- Partly supportedcites [105] sourceExperimental — accuracy not yet measured
The Discussion (page not provided) reports that D. desulfuricans reduces selenate to elemental selenium and attributes the reduction to cellular activity rather than a chemical reaction in the growth medium. It does not establish that the reduction is enzymatic, so that qualifier is not fully supported. Citation [105] is attached only to D. desulfuricans, not to the other organisms listed. (LLM, conf=0.83)
- Not checked — no full text of the sourcecites [106] Lortie L. Gould W.D. Rajan W. McCready R.G.L. Cheng K.-J. (1992) Reduction of selenate and selenite to elemental selenium by a Pseudomonas stutzeri isolate. Appl. Environ. Microbiol. 58, 4042–4044. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
The sources with a verdict support this claim; the rest weren’t checked yet, have no full text we could read, or their verdicts aren’t rated yet.
In the paper
“recent studies have focused on the ability of Fe(III)-reducing bacteria to retard the mobility of the metal through reduction to Co(II) [84,85].”
§ Microbial reduction of metals and radionuclides > 3.4. Reduction of Co(III)
What the sources say
- Supportedcites [84] Caccavo Jr F. Lonergan D.J. Lovley D.R. Davis M. Stolz J.F. McInerney M.J. (1994) Geobacter sulfurreducens sp. nov., a hydrogen and acetate-oxidizing dissimilatory metal reducing microorganism. Appl. Environ. Microbiol. 60, 3752–3759. source
The Results state that strain PCA reduces Co(III)-EDTA and that the resulting Co(II)-EDTA adsorbs more strongly to subsurface materials, potentially limiting cobalt migration. The paper presents reduced mobility as an implication of the reduction, not as a measured transport outcome. (LLM, conf=0.90)
- Not checked — no full text of the sourcecites [85] Gorby Y.A.F.C. Bolton H. (1998) Microbial reduction of cobaltIIIEDTA− in the presence and absence of manganese(IV) oxide. Environ. Sci. Technol. 32, 244–250. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“For example, unlike P. islandicum, a close relative, P. aerophilum, is unable to reduce Au(III).”
§ Microbial reduction of metals and radionuclides > 3.6. Reduction of Au(III) and Ag(I)
What the sources say
- Supportedcites [88] source
Passage [1] states that P. islandicum reduced Au(III), whereas the closely related P. aerophilum did not. This directly supports the comparison in the citing sentence under the study's tested conditions. (LLM, conf=0.94)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“In subsequent studies a wide range of dissimilatory reducing Fe(III)-reducing Bacteria and Archaea, including the hyperthermophilic Archaea P. islandicum and P. furiosus, the hyperthermophilic bacterium T. maritima, and the mesophilic bacteria Shewanella alga and G. ferrireducens were shown to reduce Au(III) (as gold chloride) to insoluble Au(0) [88].”
§ Microbial reduction of metals and radionuclides > 3.6. Reduction of Au(III) and Ag(I)
What the sources say
- Supportedcites [88] source
The Abstract (passage 7) reports that diverse dissimilatory Fe(III)-reducing Bacteria and Archaea can reduce Au(III) to insoluble Au(0), using hydrogen as the electron donor. Passages 2, 4, and 6 identify the organisms listed in the citing sentence. The paper specifies that only some Fe(III) reducers have this ability, consistent with the claim that a wide range can do so. (LLM, conf=0.93)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“In addition, As(V) can be the dominant electron acceptor for carbon oxidation in some environments such as Mono lake, California [95].”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Partly supportedcites [95] sourceExperimental — accuracy not yet measured
The Discussion (page not provided) suggests that As(V) could become a more important electron acceptor for carbon mineralization in arsenic-rich soda lakes saltier than Mono Lake. But its calculations for Mono Lake attribute 8.2–14.1% of annual pelagic carbon mineralization to As(V) respiration, versus 23.8–41.2% to sulfate reduction. Mono Lake therefore does not support the claim's example of As(V) being dominant. (LLM, conf=0.90)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Partly supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“The ability to reduce Au(III) seems to be species-speci¢c, and closely related organisms with similar activities against a range of metals have di¡ering activities against Au(III) [88].”
§ Microbial reduction of metals and radionuclides > 3.6. Reduction of Au(III) and Ag(I)
What the sources say
- Supportedcites [88] source
The Abstract says only select Fe(III)-reducing microorganisms reduced Au(III), and that some closely related Fe(III) reducers differed in this ability. It gives P. islandicum and its close relative P. aerophilum as an example, while noting that the latter can reduce Fe(III). (LLM, conf=0.93)
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“More recent studies have identi¢ed a homologous cytochrome (PpcA), a trihaem periplasmic cytochrome c 7 of the Fe(III)-reducing bacterium G. sulfurreducens that may also play a role in U(VI) reduction [42].”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Supportedcites [42] Lloyd, J.R., Leang, C., Hodges Myerson, A.L., Ciufo, S., Sandler, S.J., Methe, B., Lovley, D.R. Biochemical and genetic characterization of PpcA, periplasmic cytochrome in Geobacter sulfurreducens. Biochem. J. 2003. 153–161 source
The Discussion identifies PpcA as a periplasmic cytochrome of G. sulfurreducens and says it plays a role in electron transfer to U(VI). The U(VI) section reports that acetate-dependent U(VI) reduction was inhibited in the ppcA mutant; Figure 3 identifies three haem-binding motifs. Page numbers were not provided in our copy. (LLM, conf=0.93)
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Results obtained from studies conducted with wild-type cells and 34 de¢ned mutants defective in the synthesis of regulatory or electron transfer proteins were used to construct a model for Tc(VII) reduction by E. coli (Fig. 6).”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Partly supportedcites [89] Lloyd J.R. Cole J.A. Macaskie L.E. (1997) Reduction and removal of heptavalent technetium from solution by Escherichia coli . J. Bacteriol. 179, 2014–2021. sourceExperimental — accuracy not yet measured
The paper’s opening summary reports experiments with wild-type E. coli and mutants defective in regulatory and electron-transfer functions, and uses those findings to propose a mechanism for Tc(VII) reduction. The available text does not state that 34 defined mutants were studied or describe the claimed model in Fig. 6, so those specifics cannot be verified from our copy. (LLM, conf=0.78)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Partly supported
- It may state two separate claims as one. 61
- Probably not a substantial claim. 30
- The quote only partly states this claim. 2
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“Anaerobic con-ditions are generally required to induce maximum activity against Cr(VI), but some enzyme systems operate under aerobic conditions, for examples the soluble NAD(P)Hdependent reductases of Pseudomonas ambigua G-1, [61] and Pseudomonas putida [62].”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
What the sources say
- Not checked — no full text of the sourcecites [61] Suzuki T. Miyata H. Horitsu K. Kawai K. Takamizawa Y. Tai Y. Okazaki M. (1992) NAD(P)H-dependent chromium (VI) reductase of Pseudomonas ambigua G-1: a Cr(V) intermediate is formed during the reduction of Cr(VI) to Cr(III). J. Bacteriol. 174, 5340–5345. source
- Partly supportedcites [62] sourceExperimental — accuracy not yet measured
The Abstract describes a soluble Pseudomonas putida chromate reductase dependent on NADH or NADPH, supporting its identification as an example of that enzyme system. Neither the Abstract nor the chromate reductase assays section establishes that it operates under aerobic conditions; the paper also does not substantiate the broader statement that anaerobic conditions are generally required for maximum activity. (LLM, conf=0.82)
plainconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
Every source the paper cites for this claim was checked and supports it.
In the paper
“Here, Hg(II) is transported into the cell via the MerT transporter protein, and detoxi¢ed by reduction to relatively nontoxic volatile elemental mercury by an intracellular mercuric reductase (MerA).”
§ Microbial reduction of metals and radionuclides > 3.7. Reduction of Hg(II)
What the sources say
- Supportedcites [5] source
Section 3.3.2 identifies MerT as a central Hg(II) transporter. Section 3.4.1 states that MerA is located in the cytoplasm and reduces Hg(II) to volatile Hg(0); the Introduction describes that elemental form as relatively inert. Page numbers are unavailable in our copy. (LLM, conf=0.94)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Supported
The cited sources support only part of this claim — read each source’s verdict below.
In the paper
“The protein was able to reduce U(VI) in vitro, while a ppcA deletion mutant supplied with acetate as an electron donor had lower activity against U(VI) [42].”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Partly supportedcites [42] Lloyd, J.R., Leang, C., Hodges Myerson, A.L., Ciufo, S., Sandler, S.J., Methe, B., Lovley, D.R. Biochemical and genetic characterization of PpcA, periplasmic cytochrome in Geobacter sulfurreducens. Biochem. J. 2003. 153–161 sourceExperimental — accuracy not yet measured
The Physiological role of PpcA section reports that deleting ppcA inhibited U(VI) reduction in cell suspensions when acetate was the electron donor. But the Role of PpcA in the reduction of U(VI) and humics section treats direct U(VI) reduction by PpcA as a possibility, not an established result; our copy does not report an in-vitro demonstration that the purified protein reduces U(VI). Page numbers were not available in the indexed passages. (LLM, conf=0.88)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Partly supported
The sources with a verdict support this claim; the rest weren’t checked yet, have no full text we could read, or their verdicts aren’t rated yet.
In the paper
“In these examples, Se(VI) reduction does not support growth, and seems to be incidental to the physiology of the organism.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [104] source
- Supportedcites [105] source
The Metabolic observations section reports that D. desulfuricans failed to grow in fumarate-free media containing selenate or selenite. It also says the selenium oxyanions did not affect the organism’s metabolism, supporting the hedged characterization of Se(VI) reduction as incidental. Page numbers were not provided in our copy. (LLM, conf=0.88)
- Not checked — no full text of the sourcecites [106] Lortie L. Gould W.D. Rajan W. McCready R.G.L. Cheng K.-J. (1992) Reduction of selenate and selenite to elemental selenium by a Pseudomonas stutzeri isolate. Appl. Environ. Microbiol. 58, 4042–4044. source
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
Every source the paper cites for this claim was checked and supports it.
In the paper
“In vivo studies using a cytochrome c 3 mutant of the close relative D. desulfuricans strain G20 con¢rmed a role for cytochrome c 3 in hydrogen-dependent U(VI) reduction, but suggested additional pathways from organic electron donors to U(VI), that bypassed the cytochrome [122].”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Supportedcites [122] source
Split into 2 atoms — 2 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Supported
The cited sources that could be checked couldn’t confirm or dispute this claim.
In the paper
“It should be stressed that Tc(VII) reduction has not been shown to support growth in any of these studies, and seems to be a fortuitous biochemical side reaction in the organisms studied to date.”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not matchedcites [131] Lloyd J.R. Macaskie L.E. (1996) A novel phosphorImager based technique for monitoring the microbial reduction of technetium. Appl. Environ. Microbiol. 62, 578–582.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not checked — no full text of the sourcecites [48] source
- Could not verifycites [89] Lloyd J.R. Cole J.A. Macaskie L.E. (1997) Reduction and removal of heptavalent technetium from solution by Escherichia coli . J. Bacteriol. 179, 2014–2021. sourceExperimental — accuracy not yet measured
The available paper passages report Tc(VII) reduction by E. coli and identify the hydrogenase III component of formate hydrogenlyase as responsible. They do not assess whether Tc(VII) reduction supports growth or characterize it as a fortuitous side reaction, including across the other studies mentioned in the claim. Searches for growth coupling and physiological role found no passage addressing those points. (LLM, conf=0.70)
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
The sources with a verdict support this claim; the rest weren’t checked yet, have no full text we could read, or their verdicts aren’t rated yet.
In the paper
“In this study, a novel phosphorimager technique was used to con¢rm reduction of the radionuclide by S. putrefaciens and G. metallireducens, with similar activities subsequently detected in laboratory cultures of R. sphaeroides, Paracoccus denitri¢cans, some pseudomonads [48], E. coli [89] and a range of sulfate-reducing bacteria [64,132,133].”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not checked — no full text of the sourcecites [48] source
- Supportedcites [89] Lloyd J.R. Cole J.A. Macaskie L.E. (1997) Reduction and removal of heptavalent technetium from solution by Escherichia coli . J. Bacteriol. 179, 2014–2021. source
Split into 2 atoms — 2 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
- Not checked — no full text of the sourcecites [64] source
- Not checked — no full text of the sourcecites [132] Lloyd J.R. Ridley J. Khizniak T. Lyalikova N.N. Macaskie L.E. (1999) Reduction of technetium by Desulfovibrio desulfuricans: biocatalyst characterisation and use in a flow-through bioreactor. Appl. Environ. Microbiol. 65, 2691–2696. source
- Not checked — no full text of the sourcecites [133] Lloyd J.R. Nolting H.-F. Solé V.A. Bosecker K. Macaskie L.E. (1998) Technetium reduction and precipitation by sulphate-reducing bacteria. Geomicrobiol. J. 15, 43–56. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
Every source the paper cites for this claim was checked and supports it.
In the paper
“Evidence was presented to suggest that the mech-anism of U(VI) reduction was distinct from those of Fe(III) and Mn(IV) reduction, but may share components of the nitrite-reducing pathway [123].”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Supportedcites [123] source
The Results and discussion (p. 5) conclude that the components of the U(VI) respiratory system are not identical to those of the Fe(III) or Mn(IV) systems. The same section (p. 4) reports that a mutant unable to reduce U(VI) was also unable to reduce nitrite, indicating that the two systems share at least one component. (LLM, conf=0.94)
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Supported
Every source the paper cites for this claim was checked and supports it.
In the paper
“Initial studies demonstrated that anaerobic, but not aerobic, cultures of E. coli reduced Tc(VII) with the reduced radionuclide precipitated within the cell [89].”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Supportedcites [89] Lloyd J.R. Cole J.A. Macaskie L.E. (1997) Reduction and removal of heptavalent technetium from solution by Escherichia coli . J. Bacteriol. 179, 2014–2021. source
The opening passage [1] states that anaerobic, but not aerobic, E. coli cultures reduced Tc(VII) to an insoluble precipitate. It also reports that electron microscopy located the Tc deposit inside the cells. (LLM, conf=0.95)
boosteddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Supported
None of the sources cited for this claim have been checked yet.
In the paper
“Se(VI) reduction is also inhibited by chromate and tungstate, but not by molybdate, an inhibitor of sulfate reducers [101,102].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not matchedcites [101] Steinberg N.A. Oremland R.S. (1990) Dissimilatory selenate reduction potentials in a diversity of sediment types. Appl. Environ. Microbiol. 56, 3550–3557.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not checked — no full text of the sourcecites [102] Oremland R.S. Hollibaugh J.T. Maest A.S. Presser T.S. Miller L.G. Culbertson C.W. (1989) Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration. Appl. Environ. Microbiol. 55, 2333–2343. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
In the paper
“Also, Se(VI) is not reduced chemically under physiological conditions of pH and temperature, and Se(VI) reduction is inhibited by autoclaving of sediments.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not matchedcites [101] Steinberg N.A. Oremland R.S. (1990) Dissimilatory selenate reduction potentials in a diversity of sediment types. Appl. Environ. Microbiol. 56, 3550–3557.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
In the paper
“For example, the ability to reduce Se(VI) is widespread in sediments, with biological reduction unequivocally demonstrated in 10 out of 11 sediment types [101].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not matchedcites [101] Steinberg N.A. Oremland R.S. (1990) Dissimilatory selenate reduction potentials in a diversity of sediment types. Appl. Environ. Microbiol. 56, 3550–3557.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
boosteddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“In no cases, however, has the reduction of Hg(II) been shown to support microbial growth.”
§ Microbial reduction of metals and radionuclides > 3.7. Reduction of Hg(II)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“To date there have been no reports of microbial growth coupled to the reduction of Te(IV) by non-genetically engineered micro-organisms.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
In the paper
“Speci¢city for Se(VI) is high, with a K m of 16 WM.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [103] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Growth using Te(IV) as an electron acceptor was also reported in an engineered strain overexpressing nitrate reductase, but was not thought to be physiologically relevant in wild-type cells of E. coli [108].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [108] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“An additional Te(IV) reductase was detected in the soluble fraction of anaerobically grown cells.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [108] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Additional (if indirect) evidence linking the activity of this periplasmic protein with U(VI) reduction in vitro included the precipitation of the reduced product U(IV) in the periplasm (see Fig. 4), and the lack of impact of protease treatment of whole cells on the ability to reduce U(VI) [48].”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Not checked — no full text of the sourcecites [48] source
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“This hypothesis is based on the observed di¡erential cytochrome content and cytochrome activity when grown on alternative electron acceptors; at least three di¡erent b-type and two di¡erent c-type cytochromes have been detected [110].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [110] source
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may state two separate claims as one.
In the paper
“Finally, Te(IV) (and Se(VI)/Se(IV)) reduction and precipitation by sulfate-reducing bacteria have also been reported, in the order Te(IV) s S(VI) s Se(IV), which is in contrast to that predicted by the redox potentials alone [64].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [64] source
plaindirect- Asserted: passes — The authors put it forward as true.
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- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
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It may state two separate claims as one.
In the paper
“This is illustrated when considering highly soluble Np(V) (NpO þ 2 ), which was reduced to soluble Np(IV) by S. putrefaciens, with the Np(IV) removed as an insoluble phosphate biomineral by a phosphate-liberating Citrobacter sp.”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
- Not checked — no full text of the sourcecites [126] source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The biochemical basis of these transformations remains uncharacterised.”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
plain- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Micro-organisms have also evolved metal resistance processes that often incorporate changes in the oxidation state of toxic metals.”
§ Microbial reduction of metals and radionuclides > 1. Introduction
plaincorrelational- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“and even the generation of electricity from sediments [11]”
§ Microbial reduction of metals and radionuclides > 1. Introduction
What the sources say
- Not checked — no full text of the sourcecites [11] source
plainconditional- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Many of these organisms are also able to grow through the reduction of Mn(VI) to Mn(II).”
§ Microbial reduction of metals and radionuclides > 2. Reduction of Fe(III) and Mn(IV)
plaincorrelational- Asserted: fails — The authors may not put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: fails — The paper may give no reason why it holds.
Probably not a substantial claim. The authors may not put it forward as true. The paper’s conclusions may not depend on it. The paper may give no reason why it holds. The quote only partly states this claim.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Recent studies, however, have shown that micro-organisms can also reduce Cr(VI) e⁄ciently at circumneutral pH, and could be used to treat Cr(VI)-contaminated water.”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
hedgeddirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Finally, Fe(III)and Mn(IV)-reducing micro-organisms can also impact on the fate of other high-valency contaminant metals through direct enzymatic reduction, and also via indirect reduction catalysed by biogenic Fe(II).”
§ Microbial reduction of metals and radionuclides > 2. Reduction of Fe(III) and Mn(IV)
plaindirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“Despite an early study that showed V(V) reduction by Micrococcus lactilyticus, Desulfovibrio desulfuricans and Clostridium pasteurianum [57]”
§ Microbial reduction of metals and radionuclides > 3.1. Reduction of V(V)
What the sources say
- Not checked — no full text of the sourcecites [57] Woolfolk C.A. Whiteley H.R. (1962) Reduction of inorganic compounds with molecular hydrogen by Micrococcus lactilyticus . J. Bacteriol. 84, 647–658. source
plaindirect- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“V(V) was reduced to blue-coloured V(IV), and possibly further reduced to V(III); the latter indicated by the formation of a black precipitate and by its reaction with the reagent tairon [59].”
§ Microbial reduction of metals and radionuclides > 3.1. Reduction of V(V)
What the sources say
- Not matchedcites [59] Yurkova N.A. Lyalikova N.N. (1991) New vanadate-reducing facultative chemolithotrophic bacteria. Microbiology 59, 672–677.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
In the paper
“Early work suggested that Pseudomonas guillermondii and a Micrococcus species could reduce Mo(VI) to molybdenum blue [58].”
§ Microbial reduction of metals and radionuclides > 3.3. Reduction of Mo(VI)
What the sources say
- Not checked — no full text of the sourcecites [58] Bautista E.M. Alexander M. (1972) Reduction of inorganic compounds by soil microorganisms. Soil Sci. Soc. Am. Proc. 36, 918–920. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Indeed, Cr(III) is considered 1000 times less mutagenic than Cr(VI) [60].”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
What the sources say
- Not checked — no full text of the sourcecites [60] Wang, Y.-T. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 225–235. ASM Press, Washington, DC. source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Although microbial Mo(VI) reduction could play a role in the Mo cycle, for example leading to the concentration of insoluble Mo in anaerobic marine sediments and reduction spots in rocks [17]”
§ Microbial reduction of metals and radionuclides > 3.3. Reduction of Mo(VI)
What the sources say
- Not checked — no full text of the sourcecites [17] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Two oxidation states dominate: Cr(VI) is the most toxic and mobile form commonly encountered, with Cr(III) less soluble and less toxic.”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
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It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“These results suggest that Geobacter species sense when soluble electron acceptors are depleted and synthesise the appropriate appendages that allow movement to Fe(III) and Mn(IV) minerals and subsequent attachment.”
§ Microbial reduction of metals and radionuclides > 2.2. Mechanisms of Fe(III) and Mn(IV) reduction
hedgeddirectSingle case- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“It has been suggested that the microbial reduction of V(V) could be responsible for the precipitation of the element in anaerobic environments and could also be used to remediate vanadium-contaminated ore-processing waste streams [17].”
§ Microbial reduction of metals and radionuclides > 3.1. Reduction of V(V)
What the sources say
- Not checked — no full text of the sourcecites [17] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Environmental factors that a¡ect Cr(VI) reduction were reviewed recently and include competing electron accep- tors, pH, temperature, redox potential and the presence of other metals [60].”
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
What the sources say
- Not checked — no full text of the sourcecites [60] Wang, Y.-T. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 225–235. ASM Press, Washington, DC. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“For example, humics and other extracellular quinones are utilised as electron acceptors by Fe(III)reducing bacteria [51], and the reduced hydroquinone moieties are able to abiotically transfer electrons to Fe(III) minerals.”
§ Microbial reduction of metals and radionuclides > 2.2. Mechanisms of Fe(III) and Mn(IV) reduction
What the sources say
- Not checked — no full text of the sourcecites [51] source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“It has been suggested that the microbial reduction of V(V) could be responsible for the precipitation of the element in anaerobic environments and could also be used to remediate vanadium-contaminated ore-processing waste streams [17].”
§ Microbial reduction of metals and radionuclides > 3.1. Reduction of V(V)
What the sources say
- Not checked — no full text of the sourcecites [17] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“More recently, similar activities have been identi¢ed in cultures of a molybdenum-resistant Enterobacter species [78].”
- Also stated in: § 3.3. Reduction of Mo(VI) · plain
“Reduction of Mo(VI) was accompanied by a change in colour, as Mo(V) formed and complexed with phosphate in the medium to form methylene blue [78].”
§ Microbial reduction of metals and radionuclides > 3.3. Reduction of Mo(VI)
What the sources say
- Not checked — no full text of the sourcecites [78] Ghani B. Takai M. Hisham N.Z. Kishimoto N. Ismail A.K. Tano T. Sugio T. (1993) Isolation and characterization of a Mo6+-reducing bacterium. App. Environ. Microbiol. 59, 1176–1180. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Also stated in: § 3.3. Reduction of Mo(VI) · plain
In the paper
“A novel Fe 2þ -dependent mechanism for mercury reduction has been characterised in the membrane fraction of T. ferrooxidans, which may involve cytochrome c oxidase [93]”
§ Microbial reduction of metals and radionuclides > 3.7. Reduction of Hg(II)
What the sources say
- Not checked — no full text of the sourcecites [93] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“It is a very close relative of S. barnesii which can also reduce As(V), and has a broad activity against metals including Fe(III) and Se(VI) (see Sections 2.1 and 4.2).”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Sulfurospirillum arsenophilum (previously strain MIT-13) is a Gram-negative vibroid microaerobic sulfur-reducing bacterium isolated from arsenic-contaminated watershed sediments in eastern Massachusetts.”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Early studies suggested that c-type cytochromes of the Fe(III)-reducing bacterium G. metallireducens were able to transfer electrons to soluble Au(III) [28].”
§ Microbial reduction of metals and radionuclides > 3.6. Reduction of Au(III) and Ag(I)
What the sources say
- Not checked — no full text of the sourcecites [28] source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“This organism contains a periplasmic arsenate reductase consisting of two subunits (masses 87 and 29 kDa) which contain Mo, Fe, S and Zn cofactors [98].”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [98] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Finally, on this note, it is worth mentioning that a new organism has recently been isolated that is able to use As(III) as an electron donor for aerobic growth [100] closing the biological As cycle.”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [100] source
plaindirectSingle case- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Initial experiments aimed at reducing and recovering Pd were based on the use of D. desulfuricans because it is active against a wide range of metals including Fe(III), Mn(IV), U(VI), Cr(VI), Tc(VII) via hydrogenase or cytochrome c 3 [86].”
§ Microbial reduction of metals and radionuclides > 3.5. Reduction of Pd(II)
What the sources say
- Not matchedcites [86] Lloyd J.R. Yong P. Macaskie L.E. (1998) Enzymatic recovery of elemental palladium by using sulfate-reducing bacteria. Appl. Environ. Microbiol. 64, 4607–4609.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
The quote only partly states this claim.
- Not matched
In the paper
“Inhibition by chloride ions was reported and may necessitate optimisation of leaching from catalysts to minimise the formation of PdCl 23 4 prior to bioreduction and recovery.”
§ Microbial reduction of metals and radionuclides > 3.5. Reduction of Pd(II)
What the sources say
- Not checked — no full text of the sourcecites [87] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“A Gram-positive sulfate-reducing bacterium De-sul¢tomaculum auripigmentum has also been described that reduces As(V) followed by sulfate, resulting in the formation of orpiment (As 2 S 3 ) [99].”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [99] Newman D.K. Kennedy E.K. Coates J.D. Ahmann D. Ellis D.J. Lovley D.R. Morel F.M.M. (1998) Dissimilatory arsenate and sulfate reduction in Desulfotomaculum auripigmentum sp. nov. Arch. Microbiol. 165, 380–388. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The Co(II) formed does not associate strongly with EDTA (it is over 25 orders of magnitude less thermodynamically stable than Co(III)EDTA), and absorbs to soils, o¡ering potential for in situ immobilisation of the metal in contaminated soils.”
§ Microbial reduction of metals and radionuclides > 3.4. Reduction of Co(III)
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“In addition, As(V) reduction was inhibited by air but enhanced by an atmosphere of hydrogen suggesting the involvement of anaerobic metal-reducing bacteria.”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [96] Oremland, R.S. and Stolz, J. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 199–224. ASM Press, Washington, DC. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Transmission electron microscope studies in combination with energy dispersive X-ray microanalysis (EDS) con¢rmed precipitation in the periplasm, with X-ray di¡raction studies con¢rming reduction to Pd(0) (see Fig. 3).”
§ Microbial reduction of metals and radionuclides > 3.5. Reduction of Pd(II)
What the sources say
- Not matchedcites [86] Lloyd J.R. Yong P. Macaskie L.E. (1998) Enzymatic recovery of elemental palladium by using sulfate-reducing bacteria. Appl. Environ. Microbiol. 64, 4607–4609.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
In the paper
“Chrysiogenes arsenatis is a strict anaerobe that was isolated from wastewater from a gold mine [97].”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [97] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“A recent review has mentioned the preliminary puri¢cation and characterisation of an arsenate reductase from this organism, which constituted a trimeric complex of mass 120 kDa, consisting of subunits of 65 kDa, 31 kDa and 22 kDa [96].”
§ Microbial reduction of metals and radionuclides > 4.1. Reduction of As(V)
What the sources say
- Not checked — no full text of the sourcecites [96] Oremland, R.S. and Stolz, J. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 199–224. ASM Press, Washington, DC. source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Other mechanisms of resistance may be important, however, involving cysteine-metabolising enzymes and methyl transferases [114].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [114] Taylor D.E. (1999) Bacterial tellurite resistance. Trends Biotechnol. 7, 111–115. source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“210 Po has attracted recent attention, accounting for all K-emitting activity in some samples of groundwater from the Central Florida Phosphate District [115], and has also been identi¢ed as a troublesome isotope contaminating and fouling drilling equipment during oil exploration in areas rich in uranium ores [116].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not matchedcites [115] Burnett, W.C., Cowart, J.B. and Chin, P.A. (1987) in: Radon Radium and Other Radioactivity in Groundwater; Hydrogeologic Impact and Application to Indoor Airborne Contamination (Graves, B., Ed.), pp. 251–269. Lewis Publ.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not checked — no full text of the sourcecites [116] Lloyd, J.R. and Macaskie, L.E. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 277–327. ASM Press, Washington, DC. source
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
- Not matched
In the paper
“Finally, plasmids are known to encode several distinct resistance determinants for Te(IV), and again Te(IV) reduction is implicated as the resistance mechanism as elemental Te is laid down in Te-resistant bacteria [114].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [114] Taylor D.E. (1999) Bacterial tellurite resistance. Trends Biotechnol. 7, 111–115. source
boosteddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Little is known about the geochemistry of Po, but there is evidence that factors a¡ecting the sulfur cycle may a¡ect Po availability.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Other organisms including a Clostridium sp.[120] and the sulfate-reducing bacteria D. desulfuricans [121] and Desulfovibrio vulgaris [65] also reduce uranium, but are unable to conserve energy for growth via this transformation.”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Not checked — no full text of the sourcecites [120] Francis A.J. (1994) Microbial transformations of radioactive wastes and environmental restoration through bioremediation. J. Alloys Compounds 213/214, 226–231. source
- Not matchedcites [121] Lovley D. Phillips E.J. (1992) Reduction of uranium by Desulfovibrio desulfuricans . Appl. Environ. Microbiol. 58, 850–856.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites [65] Lovley D.R. Phillips E.J.P. (1994) Reduction of chromate by Desulfovibrio vulgaris and its c 3 cytochrome. Appl. Environ. Microbiol. 60, 726–728.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“the authors of this paper suggest that a suite of speci¢c terminal reductases are required for growth on the di¡erent electron acceptors.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [110] source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Earlier studies had suggested that the enzyme that catalysed further reduction of Se(IV) (selenite) to elemental selenium in the organism was a component of the nitrate-respiratory system, possibly a periplasmic nitrite reductase [112].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [112] source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“210 Po is the terminal member of the 238 U decay series, produced by the decay of 210 Pb via 210 Bi.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“A periplasmic complex of approximately 180 kDa (with subunits of masses 96, 40 and 23 kDa) has been characterised, and shown to contain Mo, Fe and acid-labile sulfur.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [103] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“The ¢rst demonstration of dissimilatory U(VI) reduction was by Lovley and coworkers [3] who reported that the Fe(III)-reducing bacteria G. metallireducens (previously designated strain GS-15) and S. oneidensis (formerly A. putrefaciens and then S. putrefaciens) can conserve energy for anaerobic growth via the reduction of U(VI).”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
What the sources say
- Not checked — no full text of the sourcecites [3] source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Rhodobacter sphaeroides has also been reported to reduce Te(IV) (as well as oxyanions of Se), with a requirement for a functional photosynthetic electron transfer chain under photosynthetic conditions, or cytochromes bc 1 and c 2 when grown aerobically [113].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [113] Moore M.D. Kaplan S. (1992) Identification of intrinsic high-level resistance to rare-earth oxides and oxyanions in members of the class Proteobacteria: characterization or tellurite, selenite, and rhodium sesquioxide reduction in Rhodobacter sphaeroides . J. Bacteriol. 174, 1505–1514. source
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Tellurite (TeO 23 3 ) reduction has also been studied in several organisms, mainly in the context of resistance to this toxic oxyanion.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Indeed, Cherrier et al. [117] demonstrated the microbial uptake of Po into the cellular pool, indicating the potential for assimilative Po reduction and a biochemical role analogous to that of S.”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [117] Cherrier J. Burnett W.C. LaRock P.A. (1995) Uptake of polonium and sulfur by bacteria. Geomicrobiol. J. 13, 103–115. source
boostedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Biochemical studies are not so advanced in S. barnesii, although the enzyme activity contrasts with that characterised in T. selanatis as it is localised in the membrane fraction, and may have a wider substrate speci¢city [110].”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
What the sources say
- Not checked — no full text of the sourcecites [110] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
A claim is checked only against the cited paper’s full text, never its abstract, and none is available for its sources.
In the paper
“Subsequent studies on the development of a bioprocess to treat Tc(VII)-contaminated water have focused on the use of immobilised cells of sulfate-reducing bacteria such as D. desulfuricans which are robust and capable of treating low concentrations of Tc(VII) against a high background of contaminating nitrate ions, which is often noted in nuclear waste [132,137].”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not checked — no full text of the sourcecites [132] Lloyd J.R. Ridley J. Khizniak T. Lyalikova N.N. Macaskie L.E. (1999) Reduction of technetium by Desulfovibrio desulfuricans: biocatalyst characterisation and use in a flow-through bioreactor. Appl. Environ. Microbiol. 65, 2691–2696. source
- Not checked — no full text of the sourcecites [137] Lloyd J.R. Thomas G.H. Finlay J.A. Cole J.A. Macaskie L.E. (1999) Microbial reduction of technetium by Escherichia coli and Desulfovibrio desulfuricans: enhancement via the use of high activity strains and effect of process parameters. Biotechnol. Bioeng. 66, 123–130. source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“U(VI) would seem to be reduced in the periplasm, while the reduction of insoluble Fe(III) oxides was inhibited dramatically by protease treatment, presumably due to removal of surface-bound cytochromes required for reduction of the extracellular electron acceptor.”
§ Microbial reduction of metals and radionuclides > 5.1. Reduction of U(VI)
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“This is signi¢cant because the tetravalent actinides are amenable to bioremediation due to their high ligand-complexing abilities [116], and are also immobilised in sediments containing active biomass [125].”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
- Not checked — no full text of the sourcecites [116] Lloyd, J.R. and Macaskie, L.E. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 277–327. ASM Press, Washington, DC. source
- Not matchedcites [125] Peretrukhin V.F. Khizhniak N.N. Lyalikova N.N. German K.E. (1996) Biosorption of technetium-99 and some actinides by bottom sediments of Lake Belsso Kosino of the Moscow region. Radiochemistry 38, 440–443.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Although this may lead to solubilisation of sediment-bound Pu(IV), it will yield a trivalent actinide that is also amenable to bioremediation using a range of microbially produced ligands [116].”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
- Not checked — no full text of the sourcecites [116] Lloyd, J.R. and Macaskie, L.E. (2000) in: Environmental Microbe-Metal Interactions (Lovley, D.R., Ed.), pp. 277–327. ASM Press, Washington, DC. source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Th(IV) and Am(III) are stable across most E h values encountered in radionuclide-contaminated waters (Fig. 5) but the potentials for Pu(V)/Pu(IV) and Np(V)/Np(IV), in common with that of U(VI)/U(IV), are more electropositive than the standard redox potential of ferrihydrite/Fe 2þ (approximately 0 V [12]).”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
- Not checked — no full text of the sourcecites [12] source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Several reduced forms of the radionuclide are insoluble, however, and metal-reducing microorganisms can reduce Tc(VII) and precipitate the radionuclide as a low-valency oxide.”
§ Microbial reduction of metals and radionuclides > 6. Future directions
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Although microbial metabolism was known to decrease the solubility of Tc from earlier studies [129,130], Lloyd and Macaskie were the ¢rst to unequivocally demonstrate direct enzymatic reduction of Tc(VII) by micro-organisms [131].”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not checked — no full text of the sourcecites [129] Henrot J. (1989) Bioaccumulation and chemical modification of Tc by soil bacteria. Health Phys. 57, 239–245. source
- Not checked — no full text of the sourcecites [130] Pignolet L. Fonsny K. Capot F. Moureau Z. (1989) Role of various microorganisms on Tc behaviour in sediments. Health Phys. 57, 791–800. source
- Not matchedcites [131] Lloyd J.R. Macaskie L.E. (1996) A novel phosphorImager based technique for monitoring the microbial reduction of technetium. Appl. Environ. Microbiol. 62, 578–582.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
boosteddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A claim is checked only against the cited paper’s full text, never its abstract, and none is available for its sources.
In the paper
“Although 238 U remains the priority pollutant in most medium-and low-level radioactive wastes, other actinides including 230 Th, 237 Np, 241 Pu and 241 Am can also be present [116,124].”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
In the paper
“Tc(VII) reduction and precipitation by biogenic Fe(II) is particularly e⁄cient, and may o¡er a potentially useful mechanism for the remediation of Tc-contaminated sediments containing active concentrations of Fe(III)-reducing bacteria [119].”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not checked — no full text of the sourcecites [119] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Like Np(V), Tc(VII) has weak ligand-complexing capabilities and is di⁄cult to remove from solution using conventional 'chemical' approaches.”
§ Microbial reduction of metals and radionuclides > 6. Future directions
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The ¢ssion product technetium is another long-lived radionuclide that is present in nuclear waste and has attracted considerable recent interest.”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, Fe(III)reducing bacteria have the metabolic potential to reduce these radionuclides enzymatically, or via Fe(II) produced from the reduction of Fe(III) oxides.”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Other workers have used this technique to show that T. ferrooxidans and Thiobacillus thiooxidans [134] and the hyperthermophile P. islandicum [135] are also able to reduce Tc(VII).”
§ Microbial reduction of metals and radionuclides > 5.3. Reduction of Tc(VII)
What the sources say
- Not matchedcites [134] Lyalikova N.N. Khizhnyak T.V. (1996) Reduction of heptavalent technetium by acidophilic bacteria of the genus Thiobacillus . Microbiology 65, 468–473.
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not checked — no full text of the sourcecites [135] source
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
- Not matched
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, although it is possible for Fe(III)reducing bacteria to reduce and precipitate actinides in one step, e.g. the reduction of soluble U(VI) to insoluble U(IV) (see above), some transformations do not result in direct formation of an insoluble mineral phase but in the formation of a cation more amenable to bioprecipitation.”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Also, some studies have suggested that the reduction of Pu(IV) to Pu(III) can be achieved by Fe(III)-reducing bacteria, although the Pu(III) was reported to reoxidise spontaneously [127].”
§ Microbial reduction of metals and radionuclides > 5.2. Reduction of Np(V) and Pu(IV)
What the sources say
- Not checked — no full text of the sourcecites [127] source
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
The paper relies on this without support.
The molecular basis of respiratory metal reduction processes has not been studied in fine detail.
“The molecular basis of respiratory metal reduction processes has not, however, been studied in such ¢ne detail”
The paper relies on this without support.
The environmental distribution of Fe(III)-reducing prokaryotes remains poorly understood.
“The environmental distribution of Fe(III)-reducing prokaryotes remains poorly understood”
The paper relies on this without support.
Mechanisms of metal and radionuclide reduction characterised in pure cultures or laboratory studies are representative of those operating in contaminated environments.
“bioreduction o¡ers much promise for controlling the solubility and mobility of target radionuclides in contaminated sediments”
The paper relies on this without support.
The reduction of radionuclides to less soluble forms will immobilise them in situ in contaminated sediments.
“Several reduced forms of the radionuclide are insoluble, however, and metal-reducing microorganisms can reduce Tc(VII) and precipitate the radionuclide as a low-valency oxide.”
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
“a Mo-containing membrane-bound Se(VI) reductase in Thauera selanatis”
§ Microbial reduction of metals and radionuclides > 4.2. Reduction of Se(VI) and Se(IV) and other group VIB elements
“Biochemical studies are not so advanced in S. barnesii, although the enzyme activity contrasts with that characterised in T. selanatis as it is localised in the membrane fraction”
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
§ Microbial reduction of metals and radionuclides > 3.2. Reduction of Cr(VI)
“Cr(VI) by E. coli 33456 in co-culture [72].”
§ Microbial reduction of metals and radionuclides > References
“72. Shen, H. and Wang, Y.-T. (1995) Simultaneous chromium reduction and phenol degradation in a coculture of Escherichia coli ATCC 3346 and Pseudomonas putida DMP-1.”
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
§ Microbial reduction of metals and radionuclides > 2. Reduction of Fe(III) and Mn(IV)
“Many of these organisms are also able to grow through the reduction of Mn(VI) to Mn(II).”
§ Microbial reduction of metals and radionuclides > 2. Reduction of Fe(III) and Mn(IV)
“Recent studies have shown that several important xenobiotics that contaminate aquifers can also be degraded under anaerobic conditions by Fe(III)-and Mn(IV)-reducing micro-organisms [9,18,19].”
Citations
Cites
Lovley, D. R., & Phillips, E. J. P. (1988) · Applied and Environmental Microbiology · doi:10.1128/aem.54.6.1472-1480.1988 · Cited by 2,395
Dissimilatory Fe(III) and Mn(IV) reduction
Lovley, D. R. (1991) · Microbiological Reviews · doi:10.1128/mr.55.2.259-287.1991 · Cited by 1,926
Humic substances as electron acceptors for microbial respiration
Lovley, D. R., Coates, J. D., Blunt-Harris, E. L., Phillips, E. J. P., & Woodward, J. C. (1996) · Nature · doi:10.1038/382445a0 · Cited by 1,834
Dissimilatory Fe(III) and Mn(IV) Reduction
Lovley, D. R., Holmes, D. E., & Nevin, K. P. (2004) · Advances in Microbial Physiology · doi:10.1016/s0065-2911(04)49005-5 · Cited by 1,471
Microbial reduction of uranium
Lovley, D. R., Phillips, E. J. P., Gorby, Y. A., & Landa, E. R. (1991) · Nature · doi:10.1038/350413a0 · Cited by 1,446
Electrode-Reducing Microorganisms That Harvest Energy from Marine Sediments
Bond, D. R., Holmes, D. E., Tender, L. M., & Lovley, D. R. (2002) · Science · doi:10.1126/science.1066771 · Cited by 1,437
Bacterial Manganese Reduction and Growth with Manganese Oxide as the Sole Electron Acceptor
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Bacterial silver resistance: molecular biology and uses and misuses of silver compounds
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Bacterial mercury resistance from atoms to ecosystems
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Cited by
Sorted by citations
Items 301–400 of 654
Chirwa, E. M. N., & Pulane, E. (2011) · Biodiversity · doi:10.5772/24311 · Cited by 24
“The proton flux and production of ATP through the ATP-synthase generates the required energy equivalents for use in cellular metabolism (Lloyd, 2003).”
BackgroundBiosorption of Co2+ ions by lichen Hypogymnia physodes from aqueous solutions
Pipíška, M., Horník, M., Vrtoch, Ľ., et al. (2007) · Biologia · doi:10.2478/s11756-007-0047-y · Cited by 24
“Many papers describing accumulation (cellular uptake), biosorption (metabolically independent sorption to biomass) of metals and radionuclides by microorganisms such as bacteria, fungi and algae have been published (Gadd 1996; Lloyd & Macaskie 2000; Lloyd 2003).”
BackgroundCáliz, J., Montserrat, G., Martí, E., et al. (2012) · Journal of Soils and Sediments · doi:10.1007/s11368-012-0609-7 · Cited by 24
“glucose and lipid metabolism, Cr is considered to be toxic (Lloyd 2003).”
BackgroundInfluentialCu2+ Removal and recovery by Spi SORB: batch stirred and up-flow packed bed columnar reactor systems
Vannela, R., & Verma, S. K. (2006) · Bioprocess and Biosystems Engineering · doi:10.1007/s00449-006-0049-0 · Cited by 24
“effluents for environmental protection and recovery of valuable metals through biosorption offers a potential alternative to existing technologies [2, 3].”
BackgroundGreen Synthesis of Metal‐Based Nanoparticles and Their Applications
Sajjad, S., Leghari, S. A. K., Ryma, N.-U.-A., et al. (2018) · doi:10.1002/9781119418900.ch2 · Cited by 24
Metabolism of Metals and Metalloids by the Sulfate-Reducing Bacteria
Barton, L. L., Torres, F. A. T., Xu, H., & Zocco, T. G. (2015) · Springer eBooks · doi:10.1007/978-3-319-18570-5_4 · Cited by 24
Geißler, A., Merroun, M. L., Geipel, G., et al. (2009) · Geobiology · doi:10.1111/j.1472-4669.2009.00199.x · Cited by 23
“It was demonstrated that the uranium-contaminated environments are occupied by a wide variety of micro-organisms capable of influencing uranium mobility by biotransformations such as oxidation (Dispirito & Tuovinen, 1982; Beller, 2005) or reduction (Lovley et al., 1991; Lovley & Phillips, 1992; Francis et al., 1994; L…”
BackgroundBiomineralization of Cu 2 S Nanoparticles by Geobacter sulfurreducens
Kimber, R. L., Bagshaw, H., Smith, K. F., Buchanan, D., Coker, V. S., Cavet, J. S., & Lloyd, J. R. (2020) · Applied and Environmental Microbiology · doi:10.1128/aem.00967-20 · Cited by 23
“In addition, microbial metal reduction can be harnessed for catalytic applications (5, 6) and bioremediation purposes (7, 8).”
BackgroundSelf-citationNgwenya, N., & Whiteley, C. G. (2006) · Biotechnology Progress · doi:10.1002/bp060167h · Cited by 23
Geißler, A., Selenska‐Pobell, S., Morris, K., Burke, I. T., Livens, F. R., & Lloyd, J. R. (2010) · Cambridge University Press eBooks · doi:10.1017/cbo9780511805561.012 · Cited by 22
“2007), and they can affect radionuclide speciation via a number of mechanisms which are potentially useful for scalable, cost-effective bioremediation of sediments and waters impacted by nuclear waste (Keith-Roach & Livens 2002; Lloyd 2003; Suzuki et al. 2003; Lloyd & Renshaw 2005a; Brodie et al. 2006; Fomina et al. 2…”
BackgroundInfluentialSelf-citationBiotemplating synthesis of organized structures inspired by biological processes
Liu, Y., Zhu, C., Wan, F., Fang, W., Xue, B., Zheng, Z., Ping, H., Xie, H., Wang, H., Wang, W., et al. (2022) · Giant · doi:10.1016/j.giant.2022.100108 · Cited by 22
Visualizing and Isolating Iron-Reducing Microorganisms at the Single-Cell Level
Gan, C., Wu, R., Luo, Y., Song, J., Luo, D., Li, B., Yang, Y., & Xu, M. (2020) · Applied and Environmental Microbiology · doi:10.1128/aem.02192-20 · Cited by 22
“Iron minerals are widespread in anoxic subsurface environments and can be used as electron acceptors by many microorganisms (1).”
BackgroundChen, Z., Zou, L., Zhang, H., et al. (2014) · International Biodeterioration & Biodegradation · doi:10.1016/j.ibiod.2014.07.013 · Cited by 22
“Cr(III) is considered much less mutagenic than Cr(VI) (Lloyd, 2003).”
BackgroundMtimunye, P. J., & Chirwa, E. M. N. (2014) · Chemosphere · doi:10.1016/j.chemosphere.2014.03.105 · Cited by 22
“For, example, the redox reactions involving some of the metallic pollutants could be coupled to the electron transport through electron carries in the cytoplasmic membrane and also to the flux of protons through ATP-synthase generating energy equivalents for use in cellular metabolism (Alberts et al., 1994; Lloyd, 200…”
BackgroundMohapatra, B. R., Dinardo, O., Gould, W. D., & Koren, D. W. (2010) · Minerals Engineering · doi:10.1016/j.mineng.2010.03.004 · Cited by 22
Gnanamangai, B. M., Ponmurugan, P., Jeeva, S., et al. (2017) · IET Nanobiotechnology · doi:10.1049/iet-nbt.2017.0023 · Cited by 22
“Lloyd [29] suggested that many fungi exhibit the characteristic properties of reducing Ag(III) to Ag(I).”
BackgroundThe role of iron in hexavalent chromium reduction by municipal landfill leachate
Li, Y., Low, G. K.-C., Scott, J. A., & Amal, R. (2008) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2008.04.007 · Cited by 22
Bioreduction of iron compounds as a possible clean environmental alternative for metal recovery
Laguna, C., González, F., García‐Balboa, C., Ballester, A., Blázquez, M. L., & Muñoz, J. Á. (2010) · Minerals Engineering · doi:10.1016/j.mineng.2010.08.026 · Cited by 22
“Shewanella oneidensis, later known as Alteronomas putrefaciens, and Geobacter metallireducens were the first microorganisms recognized that are able to use ferric iron anaerobically (Lloyd et al., 2003; Lloyd, 2003).”
BackgroundMuehe, E. M., & Kappler, A. A. (2014) · Environmental Chemistry · doi:10.15496/publikation-1578 · Cited by 22
Dong, W., Bhattacharyya, A., Fox, P. M., Bill, M., Dwivedi, D., Carrero, S., Conrad, M. E., & Nico, P. (2020) · Frontiers in Water · doi:10.3389/frwa.2020.562298 · Cited by 21
“…that the dissolved Mn(II) occurs either via continuous microbial reduction of Mn(III/IV) oxides (Stone, 1987; Lovley, 1991; Gounot, 1994; Lloyd, 2003) or through the corelease of adsorbed or co-precipitated Mn(II) during dissolution of other minerals (e.g., Fe-oxides; Pingitore et al.,…”
BackgroundNehzati, S., Dolgova, N. V., Young, C. G., James, A. K., Cotelesage, J. J. H., Sokaras, D., Kröll, T., Qureshi, M., Pickering, I. J., & George, G. N. (2022) · Inorganic Chemistry · doi:10.1021/acs.inorgchem.1c03196 · Cited by 22
Sitte, J., Löffler, S., Burkhardt, E.-M., Goldfarb, K. C., Büchel, G., Hazen, T. C., & Küsel, K. (2015) · Environmental Science and Pollution Research · doi:10.1007/s11356-015-4791-1 · Cited by 21
Rehman, A. (2011) · Russian Journal of Ecology · doi:10.1134/s1067413611010085 · Cited by 21
Varia, J. C., Martínez, S. S., Velasquez‐Orta, S. B., et al. (2013) · Electrochimica Acta · doi:10.1016/j.electacta.2013.10.166 · Cited by 21
Hexavalent Chromium Removal by Candida sp. in a Concentric Draft-Tube Airlift Bioreactor
Guillén-Jiménez, F. D. M., Netzahuatl-Muñoz, A. R., Morales-Barrera, L., & Cristiani‐Urbina, E. (2009) · Water Air & Soil Pollution · doi:10.1007/s11270-009-0024-x · Cited by 21
“Thus, in many countries, Cr(VI) contamination is considered a crucial environmental issue (Cheung and Gu 2007; Lloyd 2003; Middleton et al. 2003).”
BackgroundBiogenic Factors of Radionuclide Immobilization on Sandy Rocks of Upper Aquifers
Safonov, A. V., Дмитриевна, А. Н., Иванов, П. В., Boldyrev, K. A., Babich, T. L., German, K. E., & Zakharova, E. V. (2019) · Radiochemistry · doi:10.1134/s1066362219010156 · Cited by 20
Breuker, A., & Schippers, A. (2023) · Research in Microbiology · doi:10.1016/j.resmic.2023.104110 · Cited by 20
Adeeyo, A. O., & Odiyo, J. O. (2018) · Open Chemistry Journal · doi:10.2174/1874842201805010064 · Cited by 20
Biogenic Control of Manganese Doping in Zinc Sulfide Nanomaterial Using Shewanella oneidensis MR-1
Chellamuthu, P., Naughton, K. L., Pirbadian, S., et al. (2019) · Frontiers in Microbiology · doi:10.3389/fmicb.2019.00938 · Cited by 20
“…source during the manganese reduction step was not sufficient to completely eliminate the reducing activity of cells expressing mtr. Future work should look at the wide variety of available cytochromes and their capability to reduce many transition metals, lanthanides, and actinides (Lloyd, 2003).”
BackgroundBiogeochemical activity of microbial biofilms in the water column overlying uranium mine tailings
Bondici, V. F., Khan, N. H., Swerhone, G. D. W., et al. (2014) · Journal of Applied Microbiology · doi:10.1111/jam.12593 · Cited by 20
“Nutrient limitation and other stress factors in natural environments trigger bacterial communities to form polymicrobial structures that consist of bacterial cells and aggregates embedded in complex and protective extracellular polysaccharides (EPS) (Costerton et al. 1995; Flemming and Wingender 2010).”
BackgroundInfluentialBai, J., Yuan, Z., Lyu, H., et al. (2023) · Journal of Hydrology · doi:10.1016/j.jhydrol.2023.129288 · Cited by 19
Belykh, E. S., Maystrenko, T. A., Velegzhaninov, I. O., et al. (2024) · Microorganisms · doi:10.3390/microorganisms12040733 · Cited by 19
“This ability is commonly found in bacteria that utilize redox reactions as an energy source [328], and the presence of such species can benefit the entire community by reducing the bioavailability of toxic elements, including radioactive ones like uranium [130,329–331].”
BackgroundBenizri, É., Lopez, S., Durand, A., & Kidd, P. (2020) · Mineral resource reviews · doi:10.1007/978-3-030-58904-2_12 · Cited by 28
Biorecycling of Precious Metals and Rare Earth Elements
Deplanche, K., Murray, A. J., Mennan, C., Taylor, S., & Macaskie, L. E. (2011) · InTech eBooks · doi:10.5772/25653 · Cited by 20
“Lloyd, personal communication) and manufacture of novel biocatalysts (see later), in addition to generation of electricity from sediments (Lloyd, 2003) and indeed from the bionanoparticles (Yong et al.”
BackgroundMicrobial Remediation of Metals in Soils
Hietala, K. A., & Roane, T. M. (2009) · Soil biology · doi:10.1007/978-3-540-89621-0_11 · Cited by 19
Bruschi, M., & Goulhen, F. (2007) · Springer eBooks · doi:10.1007/978-3-540-34793-4_2 · Cited by 21
“Mechanisms of the reduction of Fe(III) and Mn(IV) have been extensively studied, using Geobacter species as a model (Lloyd 2003).”
BackgroundInfluentialAdhesion of Shewanella oneidensis MR-1 to Iron (Oxy)(Hydr)Oxides: Microcolony Formation and Isotherm
Zhang, M., Ginn, B. R., DiChristina, T. J., & Stack, A. G. (2010) · Environmental Science & Technology · doi:10.1021/es901793a · Cited by 20
Bioremediation via Microbial Metal Reduction
Watts, M. P., & Lloyd, J. R. (2012) · Springer eBooks · doi:10.1007/978-3-642-32867-1_7 · Cited by 20
Self-citationKuippers, G., Bassil, N. M., Boothman, C., et al. (2015) · Mineralogical Magazine · doi:10.1180/minmag.2015.079.6.19 · Cited by 19
“Interestingly, organisms most closely related to known Fe(III)-reducers were in low relative abundance (e.g. <1% of species affiliated with Fe(III)- reducing Geobacter species (Lovley et al. , 1987; Lloyd, 2003) at 21 days.”
Self-citationRuiz-Lopez, S., Foster, L., Boothman, C., Cole, N., Morris, K., & Lloyd, J. R. (2020) · Frontiers in Microbiology · doi:10.3389/fmicb.2020.587556 · Cited by 19
“…as a key microbial component during all the sampling times suggests that the metabolism of H2 may be occurring within the pond, which is of particular interest since oxidation of hydrogen could also be linked to the reduction of a range of electron acceptors, including radionuclides (Lloyd, 2003).”
BackgroundSelf-citationMicrobial Reduction of Antimony(V)-Bearing Ferrihydrite by Geobacter sulfurreducens
Xie, J., Coker, V. S., O’Driscoll, B., Cai, R., Haigh, S. J., & Lloyd, J. R. (2023) · Applied and Environmental Microbiology · doi:10.1128/aem.02175-22 · Cited by 18
Self-citationThe Impact of γ Radiation on the Bioavailability of Fe(III) Minerals for Microbial Respiration
Brown, A. R., Wincott, P. L., LaVerne, J. A., Small, J. S., Vaughan, D. J., Pimblott, S. M., & Lloyd, J. R. (2014) · Environmental Science & Technology · doi:10.1021/es503249r · Cited by 18
Self-citationAccumulation of Heavy Metals by Micro-organisms: Biomineralization and Nanocluster Formation
Selenska‐Pobell, S., & Merroun, M. L. (2010) · Springer eBooks · doi:10.1007/978-3-642-05062-6_17 · Cited by 18
Electrochemiluminescence for the identification of electrochemically active bacteria
You, L.-X., Chen, N.-J., Wang, L., Chen, J., Qin, S.-F., Rensing, C., Lin, Z., & Zhou, S. (2019) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2019.04.062 · Cited by 18
Bioremediation Potential of Heavy Metal–Resistant Actinobacteria and Maize Plants in Polluted Soil
Benimeli, C. S., Polti, M. A., Albarracín, V. H., et al. (2011) · Environmental pollution · doi:10.1007/978-94-007-1914-9_20 · Cited by 18
Bioelectrochemical Systems for Heavy Metal Removal and Recovery
Modestra, J. A., Velvizhi, G., Krishna, K. V., Arunasri, K., Lens, P. N. L., Nancharaiah, Y. V., & Mohan, S. V. (2017) · Environmental chemistry for a sustainable world · doi:10.1007/978-3-319-58622-9_6 · Cited by 21
The Role of Interactions between Bacteria and Clay Minerals in Pedochemical Processes
Perelomov, L. V. (2023) · Geochemistry International · doi:10.1134/s0016702923100105 · Cited by 17
“Another mechanism destructing clay minerals is redoxolysis (Ehrlich, 1996; Lloyd, 2003): microorganisms produce catalytic compounds that modify the redox potential of the solution and thus release metals and elements bound to them in the phyllosilicates.”
BackgroundHassan, Z., & Westerhoff, H. V. (2024) · Toxics · doi:10.3390/toxics12010089 · Cited by 17
Chen, H., Sun, D., Jiang, X., Jing, X., Lu, F., Odoom‐Wubah, T., Zheng, Y., Huang, J., & Li, Q. (2013) · RSC Advances · doi:10.1039/c3ra41215f · Cited by 17
Respiration in Terrestrial Ecosystems
Raich, J. W., Lambers, H., & Oliver, D. J. (2013) · Elsevier eBooks · doi:10.1016/b978-0-08-095975-7.00817-2 · Cited by 20
Runde, W., & Neu, M. P. (2010) · Springer eBooks · doi:10.1007/978-94-007-0211-0_32 · Cited by 23
Meleshyn, A. (2014) · Geological Society London Special Publications · doi:10.1144/sp400.6 · Cited by 18
“Detailed consideration has been given to the latter two issues (c) and (d) in reviews published elsewhere (Pedersen 1997; Pedersen 2000; Lloyd 2003; Humphreys et al. 2010; Sherwood Lollar 2011; Wolfaardt & Korber 2012), and the present analysis focuses on the issues (a) and (b) only.”
BackgroundLife in the lithosphere, kinetics and the prospects for life elsewhere
Cockell, C. S. (2011) · Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences · doi:10.1098/rsta.2010.0232 · Cited by 17
Wang, W., Mi, J., Shen, Q., et al. (2020) · ChemistrySelect · doi:10.1002/slct.202000530 · Cited by 17
Möller, C., & van Heerden, E. (2006) · FEMS Microbiology Letters · doi:10.1111/j.1574-6968.2006.00499.x · Cited by 17
“Protein bands were detected with silver staining according to the method described by Rabillot (1990) .”
MethodMicrobial Community Changes across Time and Space in a Constructed Wetland
Baddar, Z. E., Bier, R. L., Spencer, B., et al. (2024) · ACS Environmental Au · doi:10.1021/acsenvironau.4c00021 · Cited by 16
Bodemer, G. J., Antholine, W. E., Basova, L., Saffarini, D. A., & Pacheco, A. A. (2010) · JBIC Journal of Biological Inorganic Chemistry · doi:10.1007/s00775-010-0643-0 · Cited by 16
Doudi, M., Naghsh, N., & Setorki, M. (2013) · Medical science monitor basic research/Medical science monitor. Basic research · doi:10.12659/msmbr.883835 · Cited by 16
Engineering Biological Electron Transfer and Redox Pathways for Nanoparticle Synthesis
Boedicker, J. Q., Gangan, M. S., Naughton, K. L., et al. (2021) · Bioelectricity · doi:10.1089/bioe.2021.0010 · Cited by 16
“4,13,14 In the case of Ag(I), resistant cells have been found to use a combination of efflux pumps and silver chelating proteins.”
Single-Molecule Dynamics and Mechanisms of Metalloregulators and Metallochaperones
Chen, P., Keller, A. M., Joshi, C. P., Martell, D. J., Andoy, N. M., Benítez, J. J., Chen, T., Santiago, A. G., & Yang, F. (2013) · Biochemistry · doi:10.1021/bi400597v · Cited by 16
“(22) Lloyd, J. R. (2003) Microbial Reduction of Metals and Radionuclides.”
InfluentialGenetic and Proteomic Studies of Sulfur Oxidation in Chlorobium tepidum (syn. Chlorobaculum tepidum)
Chan, L., Morgan‐Kiss, R. M., & Hanson, T. E. (2008) · Advances in photosynthesis and respiration · doi:10.1007/978-1-4020-6863-8_18 · Cited by 16
“At least two general strategies have evolved to account for this conundrum (Lloyd, 2003).”
BackgroundHan, M., Liu, G., Chen, Y., et al. (2020) · Frontiers in Microbiology · doi:10.3389/fmicb.2020.01219 · Cited by 16
“Besides that, metal reduction by microbes has attracted increased attention (Lloyd, 2003), and numerous microorganisms with the ability to reduce metals have been isolated, identified, and studied (Zhang et al.”
BackgroundSmith, S. L., Rizoulis, A., West, J. M., & Lloyd, J. R. (2016) · Geomicrobiology Journal · doi:10.1080/01490451.2015.1049677 · Cited by 15
“Microorganisms may also directly influence radionuclide migration through the geosphere, for example by redox state alteration (Lloyd 2003), or interactions between extracellular biofilm components (e.g., polysaccharides) and radionuclides (Kazy et al. 2008).”
BackgroundSelf-citationSorption of plutonium to bacteria and fungi isolated from groundwater and clay samples
Lujanienė, G., Levinskaitė, L., Kačergius, A., & Gavutis, M. (2016) · Journal of Radioanalytical and Nuclear Chemistry · doi:10.1007/s10967-016-5016-x · Cited by 16
Characterization of Heavy Metal Resistance of Metal-ReducingShewanellaIsolates From Marine Sediments
Toes, A.-C. M., Geelhoed, J. S., Kuenen, J. G., et al. (2008) · Geomicrobiology Journal · doi:10.1080/01490450802258329 · Cited by 15
“…for heavy metal-resistant metal-reducing bacteria, for instance in bioremediation, are mentioned in the literature (Nealson and Saffarini 1994; Lloyd 2003; Ruggiero et al. 2005), yet factors governing metal-reduction and associated heavy metal release are only starting to be revealed…”
BackgroundCoker, V. S., Garrity, A., Wennekes, W., et al. (2013) · Environmental Technology · doi:10.1080/09593330.2013.859738 · Cited by 15
“[49–51] Magnetite can be synthesized abiotically [52] but can also be produced during the reduction of Fe(III)oxyhydroxides by subsurface metal-reducing bacteria, a process that is coupled to the conservation of energy for the growth of these microbes in anoxic environments.[53] Previous work has shown that nano-sized…”
BackgroundSelf-citationMicrobial Metal Cycling in Aquatic Environments
Roden, E., & Emerson, D. (2007) · Wiley eBooks · doi:10.1128/9781555815882.ch44 · Cited by 15
Feng, F., Jiang, Y., Jia, Y., Shang, C., Lian, X., Zang, Y., & Zhao, M. (2023) · Journal of Hydrology · doi:10.1016/j.jhydrol.2023.129780 · Cited by 17
Microbial Transformation of Heavy Metals
Sathendra, E. R., Kumar, R. P., & Baskar, G. (2017) · Energy, environment, and sustainability · doi:10.1007/978-981-10-7413-4_13 · Cited by 14
Isolation and Characterization of Cr(VI)-Reducing Actinomycetes from Estuarine Sediments
Terahara, T., Xu, X., Kobayashi, T., et al. (2015) · Applied Biochemistry and Biotechnology · doi:10.1007/s12010-015-1501-x · Cited by 14
“However, biological reduction may provide a less costly and more environmentally friendly technology for the remediation of Cr(VI) pollution [7, 8].”
BackgroundCyanobacteria-Mediated Heavy Metal Remediation
Pandey, V. D. (2017) · Springer eBooks · doi:10.1007/978-3-319-49727-3_6 · Cited by 14
Dong, F., & Zhou, Y. C. (2019) · Nanotoxicology · doi:10.1080/17435390.2018.1548667 · Cited by 14
“2005), including reductase and cytochrome that have strong metal-reducing capability (Lloyd 2003).”
BackgroundTaylor, K. G., Perry, C. T., Greenaway, A. M., & Machent, P. G. (2007) · Marine Chemistry · doi:10.1016/j.marchem.2007.09.007 · Cited by 14
Enzymatic Synthesis of Platinum Nanoparticles: Prokaryote and Eukaryote Systems
Whiteley, C. G., Govender, Y., Riddin, T., & Rai, M. (2011) · Springer eBooks · doi:10.1007/978-3-642-18312-6_5 · Cited by 14
Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review
USDOE Office of Fossil Energy (FE), Harvey, O., Qafoku, N., Cantrell, K. J., & Brown, C. F. (2012) · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · doi:10.2172/1051202 · Cited by 14
“…redox conditions and in the presence of a suitable microbial community, the influx of organic contaminants may actually enhance the immobilization of some redox-sensitive contaminants and metalloids via assimilatory or dissimilatory microbial-mediated redox reactions (Lloyd 2003, Lovley 1993).”
BackgroundInteractions of Sulfolobus acidocaldarius with uranium
Reitz, T., Merroun, M. L., Roßberg, A., et al. (2010) · Radiochimica Acta · doi:10.1524/ract.2010.1716 · Cited by 13
“Microorganisms present in such habitats can influence the migration behaviour of U by both, direct enzymatic processes such as oxidation [3, 4] and reduction [5, 6] as well as by indirect processes such as biosorption [7, 8], passive uptake [8–10], and biomineralization via bacteria-secreted ligands [11–13].”
BackgroundPossible domestication of uranium oxides using biological assistance reduction
Hidouri, S. (2015) · Saudi Journal of Biological Sciences · doi:10.1016/j.sjbs.2015.09.010 · Cited by 13
“The combination of the reduction of Fe and U the becomes possible (Lloyd, 2003) it was shown by Lovley and his coworkers that the bacteria cell of Geobacter metallireducens has a capacity to reduce Fe(III) under anaerobic conditions which get a consequence to reduce U(IV) Lovley et al., 1991.”
BackgroundLuo, C., Zhang, T., Yuan, Z., et al. (2022) · Environmental Technology & Innovation · doi:10.1016/j.eti.2022.102616 · Cited by 13
Capacity of Spirulina platensis to accumulate manganese and its distribution in cell
Chernikova, A. A., Tsoglin, L. N., Markelova, A. G., et al. (2006) · Russian Journal of Plant Physiology · doi:10.1134/s1021443706060112 · Cited by 13
“Some studies were focused on the analysis of tolerance as depending to the culture age, cultivation conditions, composition and pH of the medium, and other external factors [4, 24, 25].”
BackgroundBiogeochemistry of Trace Metals and Mettaloids
Gilmour, C. C., & Riedel, G. S. (2009) · Elsevier eBooks · doi:10.1016/b978-012370626-3.00095-8 · Cited by 13
Fomina, M., Cuadros, J., Pinzari, F., Hryshchenko, N. V., Najorka, J., Gavrilenko, M., Hong, J. W., & Gadd, G. M. (2022) · International Biodeterioration & Biodegradation · doi:10.1016/j.ibiod.2022.105486 · Cited by 12
Enrichment and remediation of uranium by microorganisms: A review
Qiuhan, Y., & Cui, O. (2023) · Open Journal of Environmental Biology · doi:10.17352/ojeb.000037 · Cited by 12
The enhanced effect of key microorganisms in chromium contaminated soil in Cr(VI) reduction
Gan, M., Zhou, Y., Huang, D., et al. (2024) · Chemosphere · doi:10.1016/j.chemosphere.2024.142682 · Cited by 12
Kerkar, S., & Das, K. R. (2016) · Springer eBooks · doi:10.1007/978-981-10-1044-6_2 · Cited by 16
Metallotolerant Bacteria: Insights into Bacteria Thriving in Metal-Contaminated Areas
Barman, D., Jha, D. K., & Bhattacharjee, K. (2020) · Springer eBooks · doi:10.1007/978-981-15-3028-9_9 · Cited by 13
Zawadzka, A. M., Paszczynski, A. J., & Crawford, R. L. (2009) · Soil biology · doi:10.1007/978-3-540-89621-0_12 · Cited by 12
“For instance, many organisms efficiently reduce Cr(VI) to Cr(III) by NAD(P) H-dependent reductases or cytochromes or microbially-produced hydrogen sulfide (Lloyd 2003 ; Lovley and Coates 1997) .”
BackgroundBacterial and Fungal-Mineral Interactions and their Application in Bioremediation – A Review
Muksy, R., Kolo, K., & Gorony, S. M. A. (2023) · Journal of Ecological Engineering · doi:10.12911/22998993/157567 · Cited by 15
“These nanoparticles are produced by bacterial and fungal interaction with metals used in the remediation of different contaminants and also in the process of bio-recovery to recover some important economic element like gold (Lloyd, 2003; Ruta et al., 2010).”
BackgroundRockne, K. J. (2007) · Journal of Environmental Science and Health Part A · doi:10.1080/10934520601134122 · Cited by 12
Imaging redox activity and Fe(II) at the microbe-mineral interface during Fe(III) reduction
Downie, H. F., Standerwick, J. P., Burgess, L., Natrajan, L. S., & Lloyd, J. R. (2018) · Research in Microbiology · doi:10.1016/j.resmic.2018.05.012 · Cited by 12
“Fe(III) minerals are often the dominant terminal electron acceptor for microbial 4 metabolism in anoxic subsurface sediments, and play a defining role in controlling the mobility of 5 trace elements through the Fe(III)/Fe(II) redox couple [1].”
BackgroundSelf-citationZhang, H., & Hu, X. (2018) · Biotechnology Progress · doi:10.1002/btpr.2727 · Cited by 12
“Recent studies found that various bacteria, including Desulfovibrio, Pseudomonas, Shewanella, Cupriavidus, Paracoccus, and Escherichia genus and so forth, were able to reduce noble metalcontaining precursors to inorganic NPs environmental friendly under mild conditions.(1,3,4,10,11) Moreover, biomass can recover ppm c…”
BackgroundGouda, S., Kerry, R. G., Das, G., et al. (2018) · Elsevier eBooks · doi:10.1016/b978-0-12-811488-9.00011-1 · Cited by 12
Role of Microbes in Bioremediation of Radioactive Waste
Vandana, U. K., Gulzar, A. B. M., Laskar, I. H., Lourembam, R. M., & Mazumder, P. B. (2021) · Microorganisms for sustainability · doi:10.1007/978-981-15-7447-4_13 · Cited by 13
Electrified bioreactors: the next power‐up for biometallurgical wastewater treatment
Ostermeyer, P., Bonin, L., León‐Fernandez, L. F., et al. (2021) · Microbial Biotechnology · doi:10.1111/1751-7915.13992 · Cited by 12
“…neptuntium, vanadium, silver, gold, cobalt, chromium, mercury, palladium and platinum can be immobilized, reduced in toxicity or transformed into valuable nanoparticles via bioreduction (Lloyd, 2003; Hennebel et al., 2012; Abin and Hollibaugh, 2014; Williamson et al., 2014; Maes et al., 2016).”
BackgroundTackling metal regulation and transport at the single-molecule level
Chen, P., Andoy, N. M., Benítez, J. J., Keller, A. M., Panda, D., & Gao, F. (2010) · Natural Product Reports · doi:10.1039/b906691h · Cited by 13
Subsurface Interactions of Actinide Species with Microorganisms
Reed, D. T., Deo, R. P., & Rittmann, B. E. (2010) · Springer eBooks · doi:10.1007/978-94-007-0211-0_33 · Cited by 12
Isotopic Insights into Redox Processes Driving Uranium Distribution in Eastern Karnataka Groundwater
Mitra, A., Pandit, S. A., Azad, S., Halliday, A. N., Jindal, M. K., Srinivasan, R., Schilling, K., & Basu, A. (2025) · Environmental Science & Technology · doi:10.1021/acs.est.5c01913 · Cited by 11
Microbial Effects on RepositoryPerformance
Humphreys, P. N., West, J. M., & Metcalfe, R. (2010) · University of Huddersfield Repository (University of Huddersfield) · Cited by 13
Identification and Characterization of a Au(III) Reductase from Erwinia sp. IMH
Wang, L., Li, Y., Ye, L., et al. (2022) · JACS Au · doi:10.1021/jacsau.2c00170 · Cited by 11
Exploring Step‐by‐Step Assembly of Nanoparticle:Cytochrome Biohybrid Photoanodes
Hwang, E. T., Orchard, K. L., Hojo, D., et al. (2017) · ChemElectroChem · doi:10.1002/celc.201700030 · Cited by 11
Chanda, P., Amenábar, M. J., Boyd, E. S., Beard, B. L., & Johnson, C. M. (2020) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2020.09.025 · Cited by 10
Metadata
- Authors
- Lloyd, J. R.
- Affiliations
- University of Manchester (GB)
- Corresponding author
- Lloyd, Jonathan R.
- ORCID
- Lloyd, Jonathan R.
- Venue
- FEMS Microbiology Reviews
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-06
- Volume
- 27
- Issue
- 2-3
- Pages
- 411-425
- ISSN
- 0168-6445 (ISSN-L)
- 1574-6976
- OpenAlex
- W2057970211
- Semantic Scholar
- 54d635ec2dd26bc1ba186b2f4d025de8fe8c7937
- Cited by
- 654
- References
- 138
- Citations by year
- 2026: 12 · 2025: 14 · 2024: 20 · 2023: 31 · 2022: 27 · 2021: 40 · 2020: 39 · 2019: 29 · 2018: 26 · 2017: 20 · 2016: 24 · 2015: 33 · 2014: 45 · 2013: 30 · 2012: 26
- FWCI
- 3.42
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- FEMS Microbiology Reviews (publishedVersion)
- PubMed (publishedVersion)
- Research Explorer (The University of Manchester) (submittedVersion)
- Funders
- U.S. Department of Energy (DE‐FG02‐)
- Natural Environment Research Council
- Topics
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chromium effects and bioremediation
- Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
- Physical Sciences › Chemistry › Inorganic Chemistry › Radioactive element chemistry and processing
- Keywords
- radionuclide reduction, iron reduction, manganese reduction, chromium reduction, mercury reduction, cobalt reduction, palladium reduction, gold reduction, silver reduction, molybdenum reduction, vanadium reduction, arsenate reduction, selenate reduction, uranium reduction, technetium reduction, metalloids, metal mobilization, reduction mechanism, bioremediation, biotechnology applications
- MeSH terms
- Archaea, Bacteria, Ferric Compounds, Manganese, Metals, Models, Biological, Oxidation-Reduction, Oxidoreductases, Radioisotopes, Metals, Heavy
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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