Current Production and Metal Oxide Reduction by Shewanella Oneidensis MR-1 Wild Type and Mutants.
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 degree of participation in each process is very different. Overall, these data suggest a very complex picture of electron transfer to solid and soluble substrates by S. oneidensis MR-1.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 921558
- Report Number(s):
- PNNL-SA-57449; AEMIDF; KP1501021; TRN: US200804%%665
- Journal Information:
- Applied and Environmental Microbiology, 73(21):7003-7012, Vol. 73, Issue 21; ISSN 0099-2240
- Country of Publication:
- United States
- Language:
- English
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