Expanding the Use of a Fluorogenic Method to Determine Activity and Mode of Action of Bacillus thuringiensis Bacteriocins Against Gram-Positive and Gram-Negative Bacteria
Figure 1
(a) Fluorescence emitted by berberine sulfate upon influx into Salmonella sp. treated with different concentrations of bacteriocins produced by B. thuringiensis. (b) Correlation () between the bacteriocin activity in mm2 of inhibition area and fluorescence. Morricin 269 (■); Kurstacin 287 (●); Kenyacin 404 (▲); Entomocin 420 (▼); Tolworthcin 524 (). (c) Fluorescence emitted by berberine sulfate inside Salmonella sp. after the effect on cytoplasmic membrane induced by bacteriocin Kurstacin 287.