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 5
Effect of carot-4-en-9,10-diol on B. plantarii cell growth and morphology.
(A) Cell growth was quantified from B. plantarii PDB cultures containing carot-4-en-9,10-diol at 20 µM (blue triangle), 200 µM (green diamond), and in PDB without carot-4-en-9,10-diol (red circle). Values are means ± SD (shown as error bars) (n = 3). (B) Cell morphology was observed at 30 h for culture medium inoculated with B. plantarii containing no carot-4-en-9,10-diol (left panel, control) and 20 µM (right panel). Yellow arrowheads indicate typical cell aggregation.