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Uncovering a Large Set of Genes That Affect Surface Motility in Salmonella enterica Serovar Typhimurium

Section of Molecular Genetics and Microbiology and Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712,¹ Sidney Kimmel Cancer Center, 10835 Altman Row, San Diego, California 92121²

Received 14 June 2006/ Accepted 1 September 2006

We describe a large set of genes affecting motility in Salmonella enterica serovar Typhimurium. Identified in microarray experiments as displaying flagellar gene expression patterns or controlled by known flagellar regulators, we show that null mutations in these genes primarily affect swarming motility. Three genes function in chemotaxis.

Published ahead of print on 15 September 2006.

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