Additional file 1.

Figure S1. Cross-streak experiment for detection of bacterial interaction via acyl-HSLs. The two monitor strains used were KG7004 (ΔlasI ΔrhlI) and KG7050 (ΔlasIΔrhlI4 ΔmexB) harboring the lasB promoter-gfp plasmid (pMQG003) were used. Test strains against the monitor strains (center) were cross-streaked on LB agar plates. Following 24 h incubation at30°C, the growth of strains was observed under a stereomicroscope, and then production of GFP by the monitor strains was visualized by excitation of the plates with blue light.

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Minagawa et al. BMC Microbiology 2012 12:70   doi:10.1186/1471-2180-12-70