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. 2014 Aug 22;9(8):e105578. doi: 10.1371/journal.pone.0105578

Figure 5. The formation of polar chemoreceptor clusters is altered in the absence of RecA protein.

Figure 5

A) A representative fluorescence microscopy image of the ΔcheR ΔrecA strain harboring plasmid pUA1127, containing the inducible eYFP::cheR fusion. Images of the ΔcheR and ΔcheRΔcheW strains containing the gene fusion were also included as positive and negative controls of polar chemoreceptor cluster structuring, respectively. B) The fraction of cells with well-structured polar chemoreceptor clusters. The percentage of cells showing polar, round, and diffraction-limited spots (previously referred to as clusters; [43]) was quantified in each strain. The results are the mean of three independent imaging experiments. Error bars represent standard deviation. ***p<0.001 and *p<0.01 as determined by one-way ANOVA with Bonferroni correction.