Shewanella oneidensis
Species of bacterium / From Wikipedia, the free encyclopedia
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Shewanella oneidensis is a bacterium notable for its ability to reduce metal ions and live in environments with or without oxygen. This proteobacterium was first isolated from Lake Oneida, NY in 1988, hence its name.[1]
Shewanella oneidensis | |
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Scientific classification | |
Domain: | Bacteria |
Phylum: | Pseudomonadota |
Class: | Gammaproteobacteria |
Order: | Alteromonadales |
Family: | Shewanellaceae |
Genus: | Shewanella |
Species: | S. oneidensis |
Binomial name | |
Shewanella oneidensis Venkateswaran et al. 1999 | |
Shewanella oneidensis is a facultative bacterium, capable of surviving and proliferating in both aerobic and anaerobic conditions. The special interest in S. oneidensis MR-1 revolves around its behavior in an anaerobic environment contaminated by heavy metals such as iron, lead and uranium. Experiments suggest it may reduce ionic mercury to elemental mercury[2] and ionic silver to elemental silver.[3] Cellular respiration for these bacteria is not restricted to heavy metals though; the bacteria can also target sulfates, nitrates and chromates when grown anaerobically.