7SAMBROOK J,RUSSELL D.Molecular Cloning: A Laboratory Method[M], NY:Cold Spring Harbor Laboratory Press,2001.
8DIEN B S,NICHOLS N N,BOTHAST R J. Recombinant Es- cherichia coli engineered for production of L-lactic acid from hexose and pentose sugars [J]. Journal of Industrial Microbi- ology & Biotechnology, 2001,27 (g) : 259-264.
9SUTTON D D, STARR M P. Intermediary metabolism of carbohydrate by erwinia amylovora [J]. Journal of Bacteriology, 1960,80( 1 ) : 104-110.
10MONIRUZZAMAN M, LAI X,YORK S W,et al. Isolation and molecular characterization of high-performance eellobiose-fermenting spontaneous mutants of ethanologenic Escherichia coli KOll containing the Klebsiella oxytoca casAB operon [J]. Applied & Environmental Microbiology,1997,63 (12): 4633-4637.
