Fig. 5.
ComGA inhibits rrnB transcription during emergence from the KS. comGA+ (BD7069, blue), comGA (BD7106, red) and comK (BD7152, green) strains, all carrying luciferase fusions to the promoter of rrnB as well as a loss-of-function rok mutation, were grown in the presence of luciferin in a plate reader. Panel A shows results in the absence and B in the presence of HPura (100 μM). Growth (dashed lines) and light output (solid lines) were followed at 1.5-minute intervals. Light output values (RLU, Relative Luminescence Units) were corrected for OD600 and plotted on a logarithmic scale. Note that the ordinate scales in panels A and B differ by a factor of 10.