Fig. 6

Scanning electron microscope showing the effects of exogenous MMPphg treatment on bacteria destruction of both Gram-negative (E. coli O157) and Gram-positive (S. aureus) cells. For all tests, 105 CFU/mL of bacterial cells were treated with or without 5 μM MMPphg at 37 °C for 1 h. The magnification is 20,000 times the original size