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. 2018 Apr 11;3(2):e00095-18. doi: 10.1128/mSphere.00095-18

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Copyright © 2018 Zhu and Dai.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

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FIG 3 — Antibiotic susceptibility of E. coli efflux pump mutants under high-salt conditions. (A) Growth rates of E. coli wild-type (WT), acrB-deficient, and tolC-deficient strains upon tetracycline (Tet) treatment in glucose medium containing 0.1 or 0.4 M NaCl. (B) Relative change in the growth rate upon tetracycline treatment. λ₀ refers to the growth rate of E. coli in drug-free medium. (C) Growth rates of E. coli wild-type, acrB-deficient, and tolC-deficient strains upon chloramphenicol (Cm) treatment in glucose medium containing 0.1 or 0.4 M NaCl. (D) Relative change in the growth rate upon chloramphenicol treatment. λ₀ refers to the growth rate of E. coli in drug-free medium.