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Time-kill profiles of AB5075 transposon mutants with disrupted A) redox stress resistance genes; B) iron acquisition genes; C) stringent response regulatory genes following 4 mg/L polymyxin B (PMB) treatment. Data shown as mean ± SD of three biological replicates. Two-way ANOVA with Tukey’s HSD post-hoc test, * p <0.05, ** p <0.01, *** p <0.001, **** p <0.0001. Dashed line indicates the limit of detection.
