FIG 2.

Rod homologs and FliE are required for swarming motility. Quantitative graphs of swarm expansion assays. Each graph contains wild-type strain 3610 (WT; data were generated at the same time as for the other strains and are in each panel for comparison), a strain containing a mutation in the gene indicated in the upper left corner (mut), and a strain containing both a mutation in the indicated gene and an ectopic complementation construct of that gene (comp). The swarm expansion assays were generated with the following strains: 3610 (WT), DS4680 (flgB), DS9555 (flgB [flgB⁺]), DS7307 (flgC), DK3720 (flgC [flgC⁺]), DS5161 (flhO), DS5944 (flhO [flhO⁺]), DS7351 (flhP), DK7360 (flhP [flhP⁺]), DS7308 (fliE), and DK3721 (fliE [fliE⁺]). Each data point is the average of three replicates. Each swarm was arbitrarily terminated at a radius of 30 mm to compensate for inoculation variation from the geometric center.