Figure 5From: Characterization of mleR, a positive regulator of malolactic fermentation and part of the acid tolerance response in Streptococcus mutansInduction of the mle locus by low pH and malate. The transcription level was determined by quantitative real time RT-PCR of the genes Smu.135-140. Results are presented as fold change after a two hours treatment with 0 or 25 mM L-malate and compared to time zero. White bars, 0 mM free malic acid; Red bars, 25 mM free malic acid.Back to article page