FIG 6.

Inactivation of mntE leads to increased sensitivity to NaOCl-mediated oxidative stress. (A) Colony morphology of S. aureus strains following a 30-min exposure to PBS containing 25 or 50 mM NaOCl was assessed by serially diluting cells and plating onto TSA. Images of individual plates containing a single S. aureus strain were combined for each treatment to facilitate direct phenotypic comparisons within treatment groups. (B) Growth as measured by OD₆₀₀ over time in TSB following a 30-min exposure to PBS containing 0 or 50 mM NaOCl. The data are the average of the means from two independent experiments, each in biological triplicate with the standard error of the mean shown.