Fig. 6

Biofilm formation in the presence of DNA and DNase I. Pseudomonas aeruginosa Xen 5 (panel a) and Staphylococcus aureus Xen 29 (panel b) biofilm at 48 h in 50% LB with DNA 0.25 mg/ml in the absence/presence of DNase I (0.1–30 μg/ml) and in the presence of LL-37 or CSA-13 (20 μM each). Inhibitory effect of DNase was compared to the effect of CSA-13 and LL-37 (n = 4). *Significantly different compared to control