FIG 6.

Determination of bactericidal effect of penisin on E. coli MTCC 1610. (A) Transmission electron microscopy without penisin treatment (i) or with penisin treatment (ii) in sections of an E. coli cell after penisin treatment. (B) Propidium iodide fluorescence microscopy phase-contrast micrograph of E. coli MTCC 1610 representing total number of bacteria (i), micrographs of E. coli MTCC 1610 cells without penisin treatment (ii) or after penisin treatment (4 μM) for 30 min. Bacterial samples for microscopy and purified peptide were prepared in PBS.