The growth and degradation curve showed that the two curve trends were similar . the degradation of map was attributed to the enzyme produced in the growth period . degrading enzymes ( or enzyme system ) were induced by pesticides 测定菌株b - 4的生长曲线和其对甲胺磷的降解曲线,发现甲胺磷降解曲线趋势类似于菌株的生长曲线,说明菌体生长越旺盛,产生分解农药的酶量就越大,降解甲胺磷的效果也就越好。