Figure 3
Effect of treatment with H 2 O 2 on the number of viable sessile B. cenocepacia cells. The average relative fluorescence signals (%) show the fraction of viable sessile cells in untreated biofilms and in biofilms treated with H2O2 (0.3%) for 15, 30 or 60 min. Data were obtained for biofilms of B. cenocepacia J2315 (black bars), C5424 (dark grey bars), MDL1 (katA mutant; pale grey bars) and MDL2 (katB mutant; white bars). Error bars represent standard deviations.