The RpoS sigma factor in the dissimilatory Fe(III)-reducing bacterium Geobacter sulfurreducens |
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Authors: | Núñez Cinthia Adams Lorrie Childers Susan Lovley Derek R |
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Affiliation: | Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003, USA. cinthia@ibt.unam.mx |
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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. |
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