Figure 6From: Absence of functional TolC protein causes increased stress response gene expression in Sinorhizobium melilotiEvaluation of efflux activity. S. meliloti 1021 (left side of the plate) and the tolC mutant SmLM03-2 (right side of the plate) were swabbed in GMS plates containing 0.5 and 1.0 mg/ml of ethidium bromide, following incubation at 30°C for 48 hours and detection under UV light.Back to article page