FIGURE 4.
Effect of different enzymes on biofilm formation by A. baumannii ATCC® 17978TM. The QQ enzyme Aii20J (20 μg/mL), DNase (2 U/mL), and α-amylase (10 U/mL) were added alone or in combination. Biofilms were produced in LS-LB in glass coverslips, incubated for 24 h at 37°C and stained with the crystal violet assay. The cultures were inoculated with cells from an agitated culture. Values are averages ± SD (n = 3). Asterisks indicate statistically significant differences in comparison with the untreated control (Mann–Whitney test, p < 0.05).