Figure 6.

Membrane permeabilization of E. coli by Peyn-cec, Pvul-cec, and Hcec-cecB. E. coli (1 × 10⁶ CFU/mL) were incubated with 4 µg/mL of antimicrobial peptides for 1 h at 37 °C. The bacteria were stained with propidium iodide (PI) and visualized under an optical microscope (A) and a fluorescence microscope (B).