FIGURE 3.
Expression level (in Miller units) of PpcpA-lacZ in D39 WT in CDM (without Mn2+ addition) supplemented with different concentrations of Co2+ and Zn2+(A), with different concentrations of Co2+ and Mn2+(B), and with different concentrations of Co2+, Mn2+, and Zn2+(C). 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, ∗∗P < 0.001, and ∗∗∗P < 0.0001).