Figure 2

Killing effect of metronidazole (MTZ) after 16 h of exposure against H. bizzozeronii strains. The figure shows the time-kill curve for H. bizzozeronii strains CIII-1^GEN, its derivate CIII-1^GEN ΔrdxA and CIII-1^GEN M11 maintained in the presence or absence of MTZ (marked with MTZ in the figure). Data are plotted as the percentage of intracellular ATP, shown as relative light units (RLU), of the treated samples compared to the untreated ones. Means statistically significant different from the wild type strain CIII-1^GEN are indicated with an asterisk, while means statistically significant different from the mutant strain CIII-1^GEN ΔrdxA are indicated with a hash tag (Turkey’s HSD, ρ < 0.05).