Figure 2From: Investigating the effects of perturbations to pgi and eno gene expression on central carbon metabolism in Escherichia coli using 13 C metabolic flux analysisGrowth properties and pgi expression levels of the pgi expression-controllable strain. (A) Growth of the pgi expression-controllable strain YUEC04 cultivated in modified M9 medium containing 0 μg/mL IPTG (open triangles), 20 μg/mL IPTG (open diamonds), 50 μg/mL IPTG (open squares), 100 μg/mL IPTG (open circles). In addition, the growth of the control strain YUEC00 (BW25113/pFE604; closed circles) and the pgi-knockout strain JWK3985 (closed triangles) are also shown. (B) Expression of pgi in the pgi expression-controllable strain YUEC04, control strain YUEC00, and the pgi-knockout strain JWK3985.Back to article page