Fig. 4From: Efficient anaerobic consumption of D-xylose by E. coli BL21(DE3) via xylR adaptive mutationTranscript analysis of xylA and xylF genes in E. coli BL2(DE3) adapted strains using qRT-PCR. A Cells grown in fermentation media containing both D-glucose (12.5 mM) and D-xylose (12.5 mM), B Cells grown in fermentation media containing D-xylose only (25 mM)Back to article page