Fig. 5.
Resistance of the A. baumannii wild type strain and the Δtol-pal mutant to the human complement system (a) and the antimicrobial peptide LL-37 (b). The A. baumannii wild type strain (□) and the ∆tol-pal mutant (○) were incubated either with human serum or with the antimicrobial peptide LL-37 at 37 °C, followed by plating onto LB agar to determine the colony forming units. Each value is the mean ± SEM of at least three independent experiments