外加营养源对氯氰菊酯降解菌GF31降解特性的影响  

Effects of Additional Nutritional Sources on Degradation of Cypermethrin by Strain GF31

作　　者：周茂钟[1] 刘幽燕[1] 李青云[1] 卢清光[1] 钟善锦 曹红军 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西环境保护科学研究院,广西南宁530022

出　　处：《化工环保》2009年第5期398-401,共4页Environmental Protection of Chemical Industry

基　　金：广西科学基金资助项目(桂科自0728047);广西研究生教育创新计划项目(2008105930830M098)

摘　　要：利用本实验室保存的一株铜绿假单胞菌(Pseudomonas aeruginosa)GF31,考察了外加不同的碳、氮源对菌株降解氯氰菊酯特性的影响。实验结果表明:适量浓度的碳、氮源对降解有明显的刺激作用,外加碳源中葡萄糖的刺激作用最为明显,外加0.8g/L的葡萄糖,氯氰菊酯降解率提高了13.7%;外加氮源中以蛋白胨对微生物的促进作用最突出,当外加5.0g/L蛋白胨时,氯氰菊酯降解率从27.5%提高到70.0%;降解5d后,氯氰菊酯的降解已基本趋于平衡。Using a bacterial strain Pseudomonas aeruginosa GF31 preserved in our laboratory, the effects of different additional carbon and nitrogen sources on the biodegradation of cypermethrin （CM） were investigated. The experimental results show that： The carbon or nitrogen sources with appropriate dosage can significantly improve the biodegradation; Among the tested carbon sources, glucose has the best effect, CM degradation rate is increased by 13.7 % with 0.8 g/L of glucose dosage; Among the tested nitrogen sources, peptone has the best effect, CM degradation rate is increased from 27.5 % to 70.0% with 5.0 g/L of peptone dosage; CM degradation reaction can generally reach equilibrium after 5 days.

关 键 词：营养源 农药 氯氰菊酯 生物降解 

分 类 号：X592[环境科学与工程—环境工程]