Fig. 4. The ΔybeX-dependent antibiotic sensitivity and outgrowth delay depend on the growth phase of the inoculum. (A ) Drops of the stationary phase and exponential phase cultures of the Keio wild-type (WT), ΔybeX , ΔybeZ , and ΔybeY strains were spotted on LB-agar plates. The cells were cultured in LB medium, and the LB agar plates were incubated at 37°C, except for the 42°C plates. (B-C ) Stationary and exponential phase cells of wild-type, ΔybeY , ΔybeZ , and ΔybeX strains were inoculated into liquid LB medium, and the growth was monitored by measuring OD600 at 37°C using a 96-well plate reader. The growth curves, summarizing three independent experiments, are shown as fitted logistic curves. Shaded areas represent the 95% CI-s.