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J Bacteriol. 2004 Aug;186(16):5543-6.

The RpoS sigma factor in the dissimilatory Fe(III)-reducing bacterium Geobacter sulfurreducens.

Author information

1
Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003, USA. cinthia@ibt.unam.mx

Abstract

Geobacter sulfurreducens RpoS sigma factor was shown to contribute to survival in stationary phase and upon oxygen exposure. Furthermore, a mutation in rpoS decreased the rate of reduction of insoluble Fe(III) but not of soluble forms of iron. This study suggests that RpoS plays a role in regulating metabolism of Geobacter under suboptimal conditions in subsurface environments.

PMID:
15292160
PMCID:
PMC490870
DOI:
10.1128/JB.186.16.5543-5546.2004
[Indexed for MEDLINE]
Free PMC Article

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