Fig. 3.

Level of induced quiescence in EPNs depends on root-cap exudate concentration. Lowering the concentration of the root-cap exudate reduced the induction of quiescence in the EPN Heterorhabditis bacteriophora. When freeze-dried exudates were diluted in 1.5× more water than its original concentration, the quiescence was reduced 4-fold compared to the original concentration. Low concentrations of exudates did not induce more quiescence than water. Letters indicate statistical differences. Bars indicate SEM.