The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
Coupled Fe(II)−Fe(III) Electron and Atom Exchange as a Mechanism for Fe Isotope Fractionation during Dissimilatory Iron Oxide Reduction
Abstract
Microbial dissimilatory iron reduction (DIR) is an important pathway for carbon oxidation in anoxic sediments, and iron isotopes may distinguish between iron produced by DIR and other sources of aqueous Fe(II). Previous studies have shown that aqueous Fe(II) produced during the earliest stages of DIR has delta56Fe values that are 0.5-2.0%o lowerthan the initial Fe(III) substrate. The new experiments reported here suggest that this fractionation is controlled by coupled electron and Fe atom exchange between Fe(II) and Fe(III) at iron oxide surfaces. In hematite and goethite reduction experiments with Geobacter sulfurreducens, the 56Fe/54Fe isotopic fractionation between aqueous Fe(II) and the outermost layers of Fe(III) on the oxide surface is approximately -3%o and can be explained by equilibrium Fe isotope partitioning between reactive Fe(II) and Fe(III) pools that coexist during DIR. The results indicate that sorption of Fe(II) to Fe(III) substrates cannot account for production of low-delta56Fe values for aqueous Fe(II) during DIR.
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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., Holmes, D. E., & Nevin, K. P. (2004) · Advances in Microbial Physiology · doi:10.1016/s0065-2911(04)49005-5 · Cited by 1,471
Anaerobic production of magnetite by a dissimilatory iron-reducing microorganism
Lovley, D. R., Stolz, J. F., Nord, G. L., & Phillips, E. J. P. (1987) · Nature · doi:10.1038/330252a0 · Cited by 989
Fredrickson, J. K., Zachara, J. M., Kennedy, D. W., Dong, H., Onstott, T. C., Hinman, N. W., & Li, S.-M. (1998) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(98)00243-9 · Cited by 807
Mechanisms for Fe(III) Oxide Reduction in Sedimentary Environments
Nevin, K. P., & Lovley, D. R. (2002) · Geomicrobiology Journal · doi:10.1080/01490450252864253 · Cited by 330
Johnson, C. M., Roden, E. E., Welch, S. A., & Beard, B. L. (2005) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2004.06.043 · Cited by 237
Self-citation
Cited by
The Iron Isotope Fingerprints of Redox and Biogeochemical Cycling in Modern and Ancient Earth
Johnson, C. M., Beard, B. L., & Roden, E. E. (2008) · Annual Review of Earth and Planetary Sciences · doi:10.1146/annurev.earth.36.031207.124139 · Cited by 477
Self-citationAtom Exchange between Aqueous Fe(II) and Goethite: An Fe Isotope Tracer Study
Handler, R. M., Beard, B. L., Johnson, C. M., & Scherer, M. M. (2009) · Environmental Science & Technology · doi:10.1021/es802402m · Cited by 356
Self-citationBalistrieri, L. S., Borrok, D. M., Wanty, R. B., & Ridley, W. I. (2008) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2007.11.013 · Cited by 323
Chen, C., Kukkadapu, R., & Sparks, D. L. (2015) · Environmental Science & Technology · doi:10.1021/acs.est.5b02448 · Cited by 292
Severmann, S., Johnson, C. M., Beard, B. L., & McManus, J. (2006) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2006.01.007 · Cited by 288
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Metadata
- Authors
- Crosby, H. A., Johnson, C. M., Roden, E. E., & Beard, B. L.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-07-23
- Volume
- 39
- Issue
- 17
- Pages
- 6698-6704
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1967199319
- Cited by
- 240
- References
- 6
- FWCI
- 8.70
- Type
- journal article
- Language
- en
- Open access
- closed
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