Escherichia coli Lacking RpoS Are Rare in Natural Populations of Non-Pathogens

Snyder, Emily; Gordon, David; Stoebel, Daniel M.

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Escherichia coli Lacking RpoS Are Rare in Natural Populations of Non-Pathogens

Date

2012

Authors

Snyder, Emily

Gordon, David

Stoebel, Daniel M.

Publisher

Genetics Society of America

Abstract

The alternative sigma factor RpoS controls a large regulon that allows E. coli to respond to a variety of stresses. Mutations in rpoS can increase rates of nutrient acquisition at the cost of a decrease in stress resistance. These kinds of mutations evolv