Transferrin Impacts Bacillus thuringiensis Biofilm Levels

Figure 2

(a) B. thuringiensis strains grew in the presence of transferrin. CTM with varying concentrations of transferrin was inoculated to an OD₆₀₀ of 0.02 in vinyl plates and incubated for 24 hours at 30°C. Culture turbidity was measured in a plate reader at OD₆₂₀. Samples are presented as the average. Asterisks indicate a statistically significant () change as compared to the no transferrin samples. (b) Transferrin decreases biofilm formation in B. thuringiensis strains. CTM with varying concentrations of transferrin was inoculated to an OD₆₀₀ of 0.02 in vinyl plates and incubated for 24 hours at 30°C. Samples were analyzed for biofilm biomass as described. Biofilm levels indicate a change in biomass relative to the baseline. Asterisks indicate a statistically significant () change as compared to the no transferrin samples.

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