Prodigiosin - A Multifaceted Escherichia coli Antimicrobial Agent
Fig 2
The modified comet assay for studying prodigiosin addition to E. coli MG1655 cells grown in LB medium at 37°C and 200 rpm.
A—non-treated bacterial cells; B—control cells treated with 4.44% (V/V) of ethanol; C—cells treated with 120 mg L-1 of prodigiosin; D—positive control cells treated with 100 mg L-1 of ampicillin. Cells were treated in the middle of the exponential phase and were inspected 1 h after the treatment. Cells were stained with GelRed™ and observed by epifluorescence microscopy. The scale bar represents 1 μm.