FIG. 1.
Production of AI-dependent virulence factors as a function of mexAB-oprM expression. P. aeruginosa K1171 (wild type [wt] for mexAB-oprM), K1168 (nalB), and K1169 (nalB ΔmexAB-oprM; ΔABM) were examined for the production of elastase (values reported have been multiplied by 100), casein protease (values reported have been multiplied by 10), and pyocyanin. Results reported are per milliliter of cells at an A600 of 1.0 and are the means of the results of three separate experiments ± the standard deviations.