Fig. 7.

OsbR affects C. violaceum growth under anaerobic conditions. The indicated strains of C. violaceum were diluted to OD₆₀₀ = 0.1 in LB medium or LB plus 0.5% NaNO₃. The cultures were grown without agitation in an anaerobic jar and the OD₆₀₀ was measured after 48 h. Statistical analysis was performed by Two-way ANOVA and P value < 0.05 was considered significant. P value < 0.05 = *; P value < 0.01 = **; P value < 0.001 = ***; P value < 0.0001 = ****