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Killing curves. Different P. aeruginosa strains, including the WT (⧫), cprR (○), cprS (□), cprR+ (●), and cprS+ (■) strains (A) or the WT (⧫), cprR (○), and parR (▲) strains (B), were grown to mid-log phase in the presence of 6 μg/ml CP28 and then challenged with 2 μg/ml of polymyxin B. Survivors were counted at specific time points. Each graphic shows data from one representative experiment of three with the same trends.
