Fig. 3
From: Activation of the SOS response increases the frequency of small colony variants
Effect of sub-inhibitory concentrations of antimicrobials on the frequency of rifampicin resistant mutants. The frequency of rifampicin resistant mutants in WT 8325-4 (black) population and in the isogenic mutant lexA(S130A) (white) grown in absence of antibiotics (NO AB) or in the presence of sub-inhibitory concentrations of CIP (Ciprofloxacin), MXF (Moxifloxacin), MMC (Mitomycin C), VAN (Vancomycin), RIF (Rifampicin) and CAM (Chloramphenicol). Concentrations of antimicrobials are 0.5 MIC of the respective strains. The bars represent the mean from 8 independent selections of each condition and error bars represent 95Â % confidence intervals