Fig.1. Schematic diagram of the metabolic engineering process ofC. glutamicum .

pepc encodes phosphoenolpyruvate carboxylase; pyk encodes pyruvate kinase; xylA encodes xylose isomerase; xylBencodes xylulose kinase; aat encodes aspartate aminotransferase;araE encodes pentose transporter; argF encodes N-ornithine carbamoyl transferase.

Table 1. Strains and plasmids