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Figure 2 | BMC Microbiology

Figure 2

From: Characterization of mleR, a positive regulator of malolactic fermentation and part of the acid tolerance response in Streptococcus mutans

Figure 2

Promoter activity of mleR and mleS in the absence of malate. Promoter activity of mleR and mleS during batch cultivation in BMS medium without malate under anaerobic conditions. A: Optical density and luciferase activity of both promoters in the wildtype background. B: Optical density and luciferase activity of both promoters in the ΔmleR background. Grey square, Optical density of strains carrying mleRp-luc; Black circle, Optical density of strains carrying mleSp-luc; Open square, RLU of strains carrying mleRp-luc; Open circle, RLU of strains carrying mleSp-luc

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