The RssAB two-component signal transduction system in Serratia marcescens regulates swarming motility and cell envelope architecture in response to exogenous saturated fatty acids.

Abstract excerpt

Serratia marcescens swarms at 30 degrees C but not at 37 degrees C on a nutrient-rich (LB) agar surface. Mini-Tn5 mutagenesis of S. marcescens CH-1 yielded a mutant (WC100) that swarms not only vigorously at 37 degrees C but also earlier and faster than the parent strain swarms at 30 degrees C. Analysis of this mutant revealed that the transposon was inserted into a gene (rssA) predicted to encode a bacterial...

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