Fig. 2.

The effect of furanones on the fluorescence intensity of GFP expressed from the eps operon promoter in B. subtilis K511 cells. Cells were grown in the presence of F12 (B), F15 (C), and F94 (D) at a concentration of 10 µg/ml (corresponds to MBIC) for 72 h. Cells grown in the absence of furanones were used as a control (A). The scale bar is 10 µm