FIG 4.
Bactericidal activities of P307 and P307SQ-8C against A. baumannii strain 1791 at log phase, at late stationary phase, and in biofilm. (A) Bacteria in log phase and late stationary phase were treated with 50 μg/ml P307 or P307SQ-8C for 2 h at 22 to 25°C. (B) A. baumannii biofilms in PVC catheters were treated with 250 μg/ml of P307 or P307SQ-8C for 2 or 24 h at 22 to 25°C. Serial dilutions were plated for CFU counting. The error bars show the standard deviations, and the black horizontal line marks the limit of detection.