FIG 4.
Depleting PhoU does not phenocopy a pstS null mutant. (A) Phase-contrast microscopy and flow cytometry analysis of DNA contents for the strains indicated, in the presence and absence of vanillate (van). Microscopic images were taken 8 h after the removal of vanillate. Bar, 2 μm. For flow cytometry, samples were collected 16 h after the removal of vanillate. (B) Numbers of CFU of the indicated strains, grown in PYE. Numbers of CFU reported are the averages of results from two replicates and indicate the number of CFU per 1 ml normalized to an OD600 of 1.