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. 2015 Jul 24;6:748. doi: 10.3389/fmicb.2015.00748

FIGURE 2.

FIGURE 2

(A) Expression level (in Miller units) of PpcpA-lacZ in D39 WT in CDM, CDM-Mn2+, CDMchelex, and CDMchelex-Mn2+ supplemented with different concentrations of Co2+ and Zn2+. (B) Expression level (in Miller units) of PpcpA-lacZ in ΔpsaR strain. SD of three independent replications is indicated with error bars. Statistical significance of the differences in the expression levels was determined by one-way ANOVA (NS, not significant, P < 0.05, and ∗∗∗P < 0.0001).