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Figure 3 | BMC Microbiology

Figure 3

From: Limited functional conservation of a global regulator among related bacterial genera: Lrp in Escherichia, Proteus and Vibrio

Figure 3

Effect of heterologous Lrp proteins on the swarming phenotype of P. mirabilis . Proteus mirabilis wild-type (A) or lrp null strains (B) were grown in LB medium. Overnight cultures were spotted (2 μl) onto triplicate 1.5% agar LB plates. After 12 h at 37°C, plates were photographed under normal illumination. At the same time, transformants of the lrp mutant strain were assayed in parallel using the same methods. These strains contained pCC1 vector (C), or plasmids carrying lrp+ alleles from P. mirabilis (D), E. coli (E), or V. cholerae (F). Panel G shows the results of measurements (average ± standard error of the triplicates) from the center of each colony to the inner (open) and outer (filled) edges of the growth rings.

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