Iron-Reducing Bacteria and Iron Nanostructures

iron-reducing bacteria and iron nanostructures

iron reducing bacteria (irb) are one of the most applicable microorganisms in various industrial and environmental activities. these bacteria play a main role in the natural iron transformation. they act in a reverse metabolic pathway in contrast to iron oxidizing bacteria. in the anaerobic conditions irb are capable to use ferric ion as the final electron acceptor and reduce fe3+ to fe2+. what...

Mercury methylation by dissimilatory iron-reducing bacteria.

The Hg-methylating ability of dissimilatory iron-reducing bacteria in the genera Geobacter, Desulfuromonas, and Shewanella was examined. All of the Geobacter and Desulfuromonas strains tested methylated mercury while reducing Fe(III), nitrate, or fumarate. In contrast, none of the Shewanella strains produced methylmercury at higher levels than abiotic controls under similar culture conditions. ...

Assessing Mutualism Between Dissimilatory Ferric Iron- and Sulfate-Reducing Bacteria

Enzymatic iron and uranium reduction by sulfate-reducing bacteria

Lovley, D.R., Roden, E.E., Phillips, E.J.P. and Woodward, J.C., 1993. Enzymatic iron and uranium reduction by sulfatereducing bacteria. In: R.J. Parkes, P. Westbroek and J.W. de Leeuw (Editors), Marine Sediments, Burial, Pore Water Chemistry, Microbiology and Diagenesis. Mar. Geol., 113: 41-53. The potential for sulfate-reducing bacteria (SRB) to enzymatically reduce Fe(III) and U(VI) was inves...

Diversity of Ferrous Iron-Oxidizing, Nitrate-Reducing Bacteria and their Involvement in Oxygen-Independent Iron Cycling

In previous studies, three different strains (BrG1, BrG2, and BrG3) of ferrous iron-oxidizing, nitrate-reducing bacteria were obtained from freshwater sediments. All three strains were facultative anaerobes and utilized a variety of organic substrates and molecular hydrogen with nitrate as electron acceptor. In this study, analyses of 16S rDNA sequences showed that strain BrG1 was affiliated wi...