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中文摘要：
从长期受农药杀螟硫磷污染的土壤中分离到一株高效降解菌株，研究了其最适产酶条件：培养温度为30℃，培养液起始pH为7．0，培养时间为30h．从该降解菌中提取的粗酶液在pH7．5和30℃时显示最大的降解活性，其米氏常数Km为2．92×10^-4mol／L，最大降解速率为2422．79nmol min^-1mg^-1．图7参15
英文摘要：
A bacterium capable of utilizing fenitrothion （ O, O-dimethyl-O-4-nitro-m-tolyl phosphorothioate） as a sole carbon source was isolated from fenitrothion-exposed soil. Its most suitable enzyme production conditions were ： 30℃ , initial pH 7.0 and incubation time 30 h. The crude enzyme extracted from the strain showed the greatest activity was obtained at pH 7.5 and 30 ℃ , with its Michaelis-Mentn＇s constant （Km） and maximum degradation rate of 2.92 × 10^-4 mol/L and 2 422.79 nmol min^-1 mg^-1 , respectively. Fig 7, Ref 15
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