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. 2006 Sep 1;72(11):7043–7049. doi: 10.1128/AEM.00924-06

FIG. 2.

FIG. 2.

Resistance of V. cholerae ppk mutant to environmental stresses. Strains C6709-1 (wild type) and AJB37 (ppk) were grown to stationary phase in LB medium or MOPS-G medium containing 2 mM phosphate. The cells were centrifuged, washed, and resuspended in 1 volume of fresh LB medium with different stresses (symbols: ▪, wild type; □, ppk). The cultures grown in MOPS-G medium containing 2 mM phosphate were centrifuged, washed, and resuspended in 1 volume of MOPS-G medium containing 2 mM phosphate (symbols: ▪, wild type; □, ppk) or 1 volume of MOPS-G medium containing 0.1 mM phosphate (symbols: ▴, wild type; ▵, ppk) in the presence of different stresses. Each value is the mean of three independent cultures.