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Sensitivity of E. coli MG1655 Δcrp and MG1655 ΔcyaA to GENT. The two strains were inoculated in M9-glucose to an OD600 of 0.01 and propagated for 6 h to exponential phase before being treated with 10 μg/ml of GENT for 2 h. The survival fraction was determined from the CFU counts at time zero and 2 h of GENT treatment.
