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中文摘要：
研究了有机磷农药降解菌株Arthrobacter sp.scl-2对苯线磷、哒嗪硫磷和丙溴磷的降解特性,结果表明菌株scl-2可以利用苯线磷、哒嗪硫磷和丙溴磷为唯一磷源生长.菌株scl-2降解苯线磷、哒嗪硫磷和丙溴磷的最适温度均为30℃,哒嗪硫磷的降解在初始pH8时速度最快,而丙溴磷和苯线磷的最适初始pH均为7,偏酸偏碱均不利于菌株对苯线磷、哒嗪硫磷、丙溴磷的降解.利用气相色谱-质谱联机鉴定了苯线磷、哒嗪硫磷、丙溴磷的降解产物,分别为3-甲基-4-甲硫基苯酚、6-羟基-2-苯基-2-氢哒嗪酮和4-溴-2-氯苯酚.
英文摘要：
In this paper,the degradation characteristics of some organophosphorus_insecticides including pyridaphention,fenamiphos and profenofos by the isocarbophos-degrading strain Arthrobacter sp.scl-2were studied.It was found that strain scl-2could use pyridaphention,fenamiphos and profenofos as the sole phosphorus source for growth.The optimal temperature for the biodegradation of pyridaphention,fenamiphos and profenofos by strain scl-2was 30°C.The initial pH value for pyridaphention biodegradation was 8.0.However,the optimal pH values for fenamiphos and profenofos were found to be 7.0.Using the GC-MS technology,the metabolites of pyridaphention,fenamiphos and profenofos degraded by strain scl-2were identified to be 6-hydroxy-2-phenylpyridazin-3（2H）-one,3-Methyl-4-methylsulfanyl-phenol and 4-bromo-2-chlorophenol,respectively.
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