SOS System Induction Inhibits the Assembly of Chemoreceptor Signaling Clusters in <i>Salmonella enterica - Fig 2 </i>

<p><b>A)</b> Percentage of cells of <i>S</i>. <i>enterica ΔcheR</i> harboring plasmid pUA1127 (wild type) and of <i>ΔsulA</i>, <i>recAo</i>, <i>lexA3</i>(Ind⁻) or <i>lexA3</i>(Ind⁻) <i>recAo</i> mutant derivatives that developed polar clusters while growing on swarming plates in the absence (-) or presence (+) of mitomycin C. The cells were harvested from the edge of the swarming colony growing on soft agar plates. When indicated, 0.08 μg mitomycin C/mL was added to the plates. The results are the mean of at least four independent imaging studies. Error bars represent the standard deviation. ***<i>p</i><0.001 as determined by a one-way ANOVA with a Bonferroni correction. <b>B)</b> Representative fluorescence microscopy images of cells from wild-type, <i>lexA3</i>(Ind⁻), and <i>recAo</i> strains grown in the presence or absence mitomycin C.