In this paper, the breeding of L-Threonine Producing strain was studied by using the theory of metabolic control fermentaton. Besides, two key enzymes activity were determined and analysed in the whole process. The results were as follows:
1. Corynebacterium glutamicum WS4006 was used to be the starting strain in the experiment. After the treatment of NTG mutagenesis and structural analogues of a-amino-β-hydroxy acid (AHV) repeatedly, an L-Threonine producing strain Y-1 (L-Met-+L-Lys-+AHVr+Ile-) was obt...