Figure 2. Expression of ζY83C toxin enhances the efficacy of different antimicrobials in high- and low-density non-growing cells.

BG689 cells were grown in MMS7 at 37°C up to early stationary phase and diluted into fresh pre-warmed MMS7 to ∼1×10⁹ cells/ml (A and B) or to ∼1×10⁶ cells/ml (C and D). Then 0.5% Xyl and/or an AM were added and the cultures were incubated for 120 min (A and C) or 240 min (B and D). The symbols, the plating conditions, and the antimicrobial concentrations are as described in Figure 1. Error bars show 95% confidence intervals of more than three independent experiments.