Figure 2
From: Metabolic engineering of a reduced-genome strain of Escherichia coli for L-threonine production
Production of L-threonine by constructed strains. The strains were cultivated in 50 ml of fermentation medium-1 at 37°C (refer to Materials and Methods). After 24 h of cultivation, the L-threonine concentration in the culture broth was measured by our bioassay system (refer to Materials and Methods). The data shown are the means and standard deviations for three independent experiments.