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Description |
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Shewanella oneidensis is a facultative aerobic Gram-negative bacterium.
It uses oxygen as the terminal electron acceptor during aerobic respiration, but
during anaerobic conditions, S. oneidensis undertakes respiration by
reducing alternative terminal electron acceptors such as oxidized metals,
fumarate, nitrate etc. The microbe can directly reduce both uranium and chromium
from the dissolved liquid state. Such abilities facilitate the removal of dilute
metal pollutants in both contained-storage and natural sites. Additionally
S. oneidensis immobilizes toxic metals through the formation of
insoluble metal sulfides. Thus, the bacterium is an important model organism for
bioremediation studies because of its diverse respiratory capabilities,
conferred in part by multicomponent, branched electron transport systems. Its
genome sequence represents a critical step in the elucidation of the [...] |
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References:
1. Genome sequence of the dissimilatory metal ion-reducing bacterium Shewanella oneidensis.Heidelberg JF, Paulsen IT, Nelson KE, Gaidos EJ, Nelson WC, Read TD, Eisen JA, Seshadri R, McDonald LA, Feldblyum TV, Smith HO, Venter JC, Nealson KH, Fraser CM et al.Nat Biotechnol. 2002 Nov; 20(11):1118-232. A mutant Bacillus subtilis gamma-glutamyltranspeptidase specialized in hydrolysis activity.Minami H, Suzuki H, Kumagai H.FEMS Microbiol Lett. 2003 Jul 29; 224(2):169-73
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