Effects of Bacillus Serine Proteases on the Bacterial Biofilms

Figure 5

S. marcescens SR 41-8000 cells produce amyloid fibrils that absorb Congo red. (a) Bacteria grown on LB agar plate at 30°C for 3 days. ((b) and (c)) Bacteria grown on LB agar plates in the presence of CR dye (25 μg/ml) at 30°C for 24 h (b) and 72 h (c). (d) CR absorption increases over the time in a linear fashion. Experiment was performed in triplicate and repeated twice. Each bar represents the average of three experiments, with error bars representing standard deviations.

(a)

(b)

(c)

(d)