Fig. 5From: Bacterial signals N-acyl homoserine lactones induce the changes of morphology and ethanol tolerance in Saccharomyces cerevisiae Identification of degradation of AHLs by S. cerevisiae. The S. cerevisiae strain and medium solution were incubated with 2 μM 3OC6-HSL (a) and C12-HSL (b) for 12, 24, 36, and 48 h, and then the culture supernatants were spotted onto an agar plate (containing X-Gal and IPTG). The medium solution without S. cerevisiae were also added 2 μM 3OC6-HSL and C12-HSL as positive control. The residual AHLs were detected by A. tumefaciens A136 (blue stain)Back to article page