Each line represents a geometric average of three biological replicates. (A) The wildtype killing dynamics in either glycerol or glucose minimal medium. (B) The ∆relA killing dynamics in either glycerol or glucose minimal medium. (C) Killing dynamics in glucose minimal medium for comparison between the wildtype and the ∆relA strain. There was no statistically significant difference between the wildtype survivors and the ∆relA strain survivors at any of the timepoints (see the Materials and Methods section). (D) Killing dynamics in glycerol minimal medium for comparison between the wildtype and the ∆relA strain. (A, B, C, D) Log–log plot of the data in (A, B, C, D) is available in Fig S1. (E) Survival fraction after 2 h of ciprofloxacin treatment plotted against the growth rate before antibiotics treatment.