Effects of different carbon sources including glucose, lactate and acetate and IPTG induction on the expression of ctb gene, which is on the downstream of lac promotor, in recombinant Escherichia coli MM2 were studied.

• 研究了不同碳源(葡萄糖、乳酸和乙酸)以及IPTG诱导对工程菌MM2表达霍乱毒素B亚单位(CTB)的影响,ctb基因位于lac启动子的下游。