Research Article

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 2

Effect of bacteriocins produced by B. thuringiensis on the growth of B. cereus 183. (a) Log10 cfu mL−1. (b) Optical density measured at 660 nm. The five bacteriocins were added in the middle of the logarithmic phase of growth curve ( 4 h) of B. cereus (indicator strain) used as control (without bacteriocins). B. cereus 183 (◂); Morricin 269 (■); Kurstacin 287 (●); Kenyacin 404 (▲), Entomocin 420 (); Tolworthcin 524 ( ).
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(a)
503269.fig.002b
(b)