FIG 6.

Role of PrpA in surface motility and biofilm formation in response to illumination at 37°C. (A) Cells of the parental strain (17978) and the prpA insertion mutant (prpA) and its complemented derivative (prpA.CV) were surface inoculated onto SA plates and incubated at 37°C in the presence or absence of light. (B) Biofilm formation by the same three strains on microtiter plate wells statically incubated at 37°C under darkness or illumination. Horizontal bars identify statistically different values (****, P ≤ 0.001), and error bars represent the standard errors of each data set.