Plasmid virulence gene expression induced by short-chain fatty acids in Salmonella dublin: identification of rpoS-dependent and rpo-S-independent mechanisms
Open Access
- 1 February 1997
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 179 (4), 1409-1412
- https://doi.org/10.1128/jb.179.4.1409-1412.1997
Abstract
The Salmonella plasmid virulence spvABCD genes are growth phase regulated and require RpoS for maximal expression in stationary phase. We identified a growth phase-independent expression of spv which is mediated by short-chain fatty acids. During this fatty acid-mediated expression of spv, RpoS is required for induction only during exponential phase. In stationary phase, an rpoS-independent mechanism is responsible for expression of spv.Keywords
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