Figure 4. DNase arrests biofilms following adherence. Biofilms of WT, ΔcprS, or WT in MH/DOC (0.05%) were grown on coverslips in the presence (top panels) or absence (bottom panels) of DNase (90 U mL⁻¹).

After the indicated times, biofilms were fixed, stained with DAPI, and visualized by confocal microscopy. Green: GFP-expressing bacteria; Blue: DAPI-stained DNA.