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. 2018 Oct 12;9:2405. doi: 10.3389/fmicb.2018.02405

FIGURE 2.

FIGURE 2

OmpR activates mrkA expression. (A) qRT-PCR analyses of the mrkA expression for WT, ΔompR, ΔompR (pACYC184), and ΔompR (pOmpR) strains in LB broth with or without 400 mM NaCl. (B) β-galactosidase activities of K. pneumoniae CG43S3ΔlacZ and the isogenic strain (ΔlacZΔompR) carrying the reporter plasmid pmrkAZ15 (PmrkA::lacZ) were determined using log-phase cultures grown in LB broth with or without 400 mM NaCl. The results are representative of three independent experiments. Error bars indicate standard deviations. ∗∗P < 0.01 compared to the indicated group.