Current production and metal oxide reduction by Shewanella oneidensis MR-1 wild type and mutants

Authors
Bretschger, OriannaObraztsova, AnnaSturm, Carter A.Chang, In SeopGorby, Yuri A.Reed, Samantha B.Culley, David E.Reardon, Catherine L.Barua, SoumitraRomine, Margaret F.Zhou, JizhongBeliaev, Alexander S.Bouhenni, RachidaSaffarini, DaadMansfeld, FlorianKim, Byung-HongFredrickson, James K.Nealson, Kenneth H.
Issue Date
2007-11
Publisher
AMER SOC MICROBIOLOGY
Citation
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, v.73, no.21, pp.7003 - 7012
Abstract
Shewanella oneidensis MR-1 is a gram-negative facultative anaerobe capable of utilizing a broad range of electron acceptors, including several solid substrates. S. oneidensis MR-1 can reduce Mn(IV) and Fe(III) oxides and can produce current in microbial fuel cells. The mechanisms that are employed by S. oneidensis MR-1 to execute these processes have not yet been fully elucidated. Several different S. oneidensis MR-1 deletion mutants were generated and tested for current production and metal oxide reduction. The results showed that a few key cytochromes play a role in all of the processes but that their degrees of participation in each process are very different. Overall, these data suggest a very complex picture of electron transfer to solid and soluble substrates by S. oneidensis MR-1.
Keywords
OUTER-MEMBRANE CYTOCHROMES; MICROBIAL FUEL-CELLS; DISSIMILATORY FE(III) REDUCTION; PUTREFACIENS MR-1; FE(III)-REDUCING BACTERIUM; REDUCING BACTERIUM; ELECTRON-TRANSFER; GEOBACTER-SULFURREDUCENS; ANAEROBIC RESPIRATION; MANGANESE REDUCTION; OUTER-MEMBRANE CYTOCHROMES; MICROBIAL FUEL-CELLS; DISSIMILATORY FE(III) REDUCTION; PUTREFACIENS MR-1; FE(III)-REDUCING BACTERIUM; REDUCING BACTERIUM; ELECTRON-TRANSFER; GEOBACTER-SULFURREDUCENS; ANAEROBIC RESPIRATION; MANGANESE REDUCTION
ISSN
0099-2240
URI
https://pubs.kist.re.kr/handle/201004/133999
DOI
10.1128/AEM.01087-07
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KIST Article > 2007
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