Fig. 6From: Saccharomyces cerevisiae employs complex regulation strategies to tolerate low pH stress during ethanol productionDEGs involved in amino acid metabolism. Green, blue, and red backgrounds indicated groups B3 vs KF-7, C3 vs KF-7, and BC3 vs KF-7, respectively. Letters in red indicated upregulation and in green indicated downregulation. Data in the first row were derived from pH 2.5, and data in the second row were derived from pH 4.5Back to article page