Fig. 6.

Biofilm formation assessed by crystal violet staining. Biofilms were grown in TSB with or without 150 μM DPD at 37 °C for 48 h in six-well plates under aerobic conditions. Biofilm biomass was measured by crystal violet staining and expressed relative to the final culture density. Data analyzed by Student’s t-test. * P < 0.05; ** P < 0.01 and NS for P>0.05