Fig. 5
From: Efficient anaerobic consumption of D-xylose by E. coli BL21(DE3) via xylR adaptive mutation

Anaerobic cell growth and sugar consumption profiles of E. coli cells carrying the newly introduced xylR C91A mutation. A JH035 (= BL21(DE3) xylR C91A) cells grown in D-glucose + D-xylose medium, B JH035 in D-xylose only medium, C JH061 (= MG1655 xylR C91A) in D-glucose + D-xylose medium, D JH061 in D-xylose only medium