Figure 2 | Scientific Reports

Figure 2

From: Acidification of Cytoplasm in Escherichia coli Provides a Strategy to Cope with Stress and Facilitates Development of Antibiotic Resistance

Figure 2

Deletion of marR decreases the resistance to NF and is associated to an increase in pHi. (A) Serial 10-fold dilutions of cell suspensions of the EV18 and EV18 ΔmarR grown on LB-KPi agar supplemented with the indicated concentrations of NF. (B) Comparison of the cytoplasmic pH of the EV18 and EV18 ΔmarR cells incubated at the indicated pHs. (C) Growth of the single mutants of marR, soxR, soxS and rob in the EV18 strain during exposure to increasing concentrations of NF for 12 h in in LB-KPi medium.

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