Fig. 3

Diffusible signal factor (DSF)-family signal components produced by fabH1 deletion mutant. a DSF signal components produced by fabH1 deletion mutant that was grown in 50 mL NA medium at 30°C for 24 h were collected and detected by HPLC. b The relative DSF-family signal component levels at 24 h after inoculation. The amounts of signal molecules were calculated based on peak areas. Values are the means ± SDs from three independent experiments. The asterisks above the error bars indicate significant differences compared with the wild-type strain (***P < 0.001). All experiments were repeated three times with similar results