| 一硫代磷酸酯杀虫剂的酶促降解 |
| 摘要点击 846 全文点击 1588 投稿时间：1997-06-23 |
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| 中文关键词 微生物 酶促降解 对硫磷 甲基对硫磷 杀螟松 米氏常数 |
| 英文关键词 microorganism enzymatic degradation parathion parathion-methyl fenitrothion Michaelis-Mentn's constant |
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| 中文摘要 |
| 从降解菌YF11中提取了降解酶并测定了该降解酶对对硫磷、甲基对硫磷和杀螟松的降解特性。对硫磷和甲基对硫磷酶促降解的最适pH均为8.0,杀螟松的最适pH为8.5,最适温度为32.5℃。该降解酶对对硫磷、甲基对硫磷和杀螟松的米氏常数分别为187.2、205.5和212.4nmol/ml. |
| 英文摘要 |
| Degradation characteristics of parathion,parathion-methyl and fenitrothion by a enzyme,extracted from the isolated strain YF11,was determined.The optimum pH of enzymatic degradation for parathion and parathion-methyl is 8.0,and that for fenitrothion is 8.5.The optimum temperature of enzymatic degradation for the insecticides is 32.5℃.Michaelis Mentn's constant(Km) of the enzyme for parathion,parathion methyl and fenitrothion are 187.2,205.5 and 212.4nmol/ml,respectively. |
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