The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Dominance of sulfur-fueled iron oxide reduction in low-sulfate freshwater sediments
Open accessAbstract
A central tenant in microbial biogeochemistry is that microbial metabolisms follow a predictable sequence of terminal electron acceptors based on the energetic yield for the reaction. It is thereby oftentimes assumed that microbial respiration of ferric iron outcompetes sulfate in all but high-sulfate systems, and thus sulfide has little influence on freshwater or terrestrial iron cycling. Observations of sulfate reduction in low-sulfate environments have been attributed to the presumed presence of highly crystalline iron oxides allowing sulfate reduction to be more energetically favored. Here we identified the iron-reducing processes under low-sulfate conditions within columns containing freshwater sediments amended with structurally diverse iron oxides and fermentation products that fuel anaerobic respiration. We show that despite low sulfate concentrations and regardless of iron oxide substrate (ferrihydrite, Al-ferrihydrite, goethite, hematite), sulfidization was a dominant pathway in iron reduction. This process was mediated by (re)cycling of sulfur upon reaction of sulfide and iron oxides to support continued sulfur-based respiration—a cryptic sulfur cycle involving generation and consumption of sulfur intermediates. Although canonical iron respiration was not observed in the sediments amended with the more crystalline iron oxides, iron respiration did become dominant in the presence of ferrihydrite once sulfate was consumed. Thus, despite more favorable energetics, ferrihydrite reduction did not precede sulfate reduction and instead an inverse redox zonation was observed. These findings indicate that sulfur (re)cycling is a dominant force in iron cycling even in low-sulfate systems and in a manner difficult to predict using the classical thermodynamic ladder.
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Cites
Greengenes, a Chimera-Checked 16S rRNA Gene Database and Workbench Compatible with ARB
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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
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“Bacterial tag-encoded pyrosequencing (bTEFAP) was conducted by the Research and Testing Laboratory (Lubbock, TX, USA) as described previously (Dowd et al., 2008).”
MethodWidespread iron-rich conditions in the mid-Proterozoic ocean
Planavsky, N. J., McGoldrick, P., Scott, C. T., Li, C., Reinhard, C. T., Kelly, A. E., Chu, X., Bekker, A., Love, G. D., & Lyons, T. W. (2011) · Nature · doi:10.1038/nature10327 · Cited by 505
Reduction of Fe(III) in sediments by sulphate-reducing bacteria
Coleman, M. L., Hedrick, D. B., Lovley, D. R., White, D. C., & Pye, K. (1993) · Nature · doi:10.1038/361436a0 · Cited by 479
Dissimilatory Sulfate- and Sulfur-Reducing Prokaryotes
Rabus, R., Hansen, T. A., & Widdel, F. (2006) · The Prokaryotes · doi:10.1007/0-387-30742-7_22 · Cited by 276
Jakobsen, R., & Postma, D. (1999) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(98)00272-5 · Cited by 264
Johnston, D. T., Poulton, S. W., Dehler, C., Porter, S., Husson, J., Canfield, D. E., & Knoll, A. H. (2010) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2009.11.059 · Cited by 216
Self-citation
Cited by
Biodegradation: Updating the Concepts of Control for Microbial Cleanup in Contaminated Aquifers
Meckenstock, R. U., Elsner, M., Griebler, C., Lueders, T., Stumpp, C., Aamand, J., Agathos, S. N., Albrechtsen, H.-J., Bastiaens, L., Bjerg, P. L., et al. (2015) · Environmental Science & Technology · doi:10.1021/acs.est.5b00715 · Cited by 296
Reexamination of 2.5-Ga “whiff” of oxygen interval points to anoxic ocean before GOE
Slotznick, S. P., Johnson, J. E., Rasmussen, B., Raub, T. D., Webb, S. M., Zi, J.-W., Kirschvink, J. L., & Fischer, W. W. (2022) · Science Advances · doi:10.1126/sciadv.abj7190 · Cited by 81
Planktonic marine iron-oxidizers drive iron mineralization under low oxygen conditions
Field, E. K., Kato, S., Findlay, A. J., MacDonald, D. J., Chiu, B. K., Luther, G. W., & Chan, C. S. (2016) · Geobiology · doi:10.1111/gbi.12189 · Cited by 41
Metadata
- Authors
- Hansel, C. M., Lentini, C. J., Tang, Y., Johnston, D. T., Wankel, S. D., & Jardine, P. M.
- Venue
- The ISME Journal
- Publisher
- Oxford University Press (OUP)
- Published
- 2015-04-14
- Volume
- 9
- Issue
- 11
- Pages
- 2400-2412
- ISSN
- 1751-7362 (ISSN-L)
- 1751-7370
- OpenAlex
- W1990536164
- Cited by
- 245
- References
- 10
- FWCI
- 13.89
- Type
- journal article
- Language
- en
- Open access
- bronze
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