Repression of Tropolone Production and Induction of a Burkholderia plantarii Pseudo-Biofilm by Carot-4-en-9,10-diol, a Cell-to-Cell Signaling Disrupter Produced by Trichoderma virens
Figure 6
Relationship between biofilm formation and tropolone production in B. plantarii.
Correlation analysis of biofilm biomass and endogenous tropolone produced by B. plantarii incubated for 24, 36, 48, 72, 84 and 96 h in the static culture system. The endogenous tropolone production showed a positive and linear correlation with the biofilm formation evaluated by crystal violet staining method with the correlation coefficient of r2 = 0.96 (n = 18). Both tropolone production and biofilm formation increased along with longer incubation time up to 96 h. Values shown by the plots are means ± SD (n = 3). Vertical and horizontal error bars on each plot were for the biofilm biomass (OD570) and the tropolone production (mM) respectively.