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 4
Effect of carot-4-en-9,10-diol on B. plantarii tropolone production.
(A) Tropolone production was quantified from cultures of B. plantarii in PDB containing carot-4-en-9,10-diol at 20 µM (blue triangle), 200 µM (green diamond), and in the PDB without carot-4-en-9,10-diol (red circle). (B) Tropolone was analyzed quantitatively at 72 h for culture medium inoculated with B. plantarii containing carot-4-en-9,10-diol at zero, 10, 20, 50, 100 and 200 µM. Values are means ± SD (shown as error bar) (n = 3).