The mechanisms of iron isotope fractionation produced during dissimilatory Fe ( III ) reduction by Shewanella putrefaciens and Geobacter sulfurreducens

@inproceedings{Crosby2007TheMO,
  title={The mechanisms of iron isotope fractionation produced during dissimilatory Fe ( III ) reduction by Shewanella putrefaciens and Geobacter sulfurreducens},
  author={Heidi A. Crosby and Eric E Roden and Clark M. Johnson and Brian L. Beard},
  year={2007}
}
Microbial dissimilatory iron reduction (DIR) is widespread in anaerobic sediments and is a key producer of aqueous Fe(II) in suboxic sediments that contain reactive ferric oxides. Previous studies have shown that DIR produces some of the largest natural fractionations of stable Fe isotopes, although the mechanism of this isotopic fractionation is not yet well understood. Here we compare Fe isotope fractionations produced by similar cultures of Geobacter sulfurreducens strain PCA and Shewanella… CONTINUE READING
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