Skip to main content
. 2016 Apr 8;21(4):468. doi: 10.3390/molecules21040468

Figure 4.

Figure 4

Effects of coumarins on biofilm formation of R. solanacearum. Biofilm inhibition (%) was quantified after treatment with different concentrations of coumarins at 30 °C for 24 h in the 96-well plates (A); (* indicated p < 0.05, ** indicated p < 0.01). Fluorescence microscope imaging of biofilm formation of R. solanacearum using FITC-ConA tagged with extracellular polysaccharide in 24-well polystyrene microtiter plate (B); Fluorescence microscope imaging of R. solanacearum with (a) 50 mg/L DMSO (control treatment); (b) coumarin (50 mg/L); (c) umbelliferone (50 mg/L); (d) esculetin (50 mg/L); (e) daphnetin (50 mg/L).