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 3
Virulence-attenuation effect of carot-4-en-9,10-diol on the growth of the rice seedlings inoculated with B. plantarii.
Typical root and shoot growth performance among rice seedlings inoculated with B. plantarii (control, A), B. plantarii-inoculated rice seedlings that were also treated with 20 µM carot-4-en-9,10-diol at the same time (treated, B), inoculated rice seedlings without any inoculation of B. plantarii (blank, C). Virulence of B. plantarii recorded as the shoot and the root growth inhibition as indexes of the symptom was attenuated with statistical significance (D, right panel). Values are means ± SD (shown as error bar) (n = 30). *P<0.01 by Student’s-t test.