鞘氨醇单胞菌株XJ对农药的降解效能  

Test of Pesticide Degradability by Sphingomonas yanoikuyae XJ Strain

作　　者：欧阳主才[1] 王奕恒[2] 李小妮 高永峰[2] 蒋刚彪[2] 方羽生[2] 

机构地区：[1]华南农业大学基地管理处,广东广州510642 [2]华南农业大学资源环境学院,广东广州510642 [3]广东省植保总站,广东广州510500

出　　处：《华南农业大学学报》2008年第2期47-49,共3页Journal of South China Agricultural University

基　　金：广东省教育部产学研结合项目(2006D90501003)

摘　　要：以筛选对有机磷、氨基甲酸酯和除虫菊酯3类农药具有降解作用,能对农药污染进行生物修复的菌株为目标,对采自广州市郊区的鞘氨醇单胞菌Sphingom onas sp.菌株X J,经富集培养法提高其对农药的降解效能后,用气相色谱检测了该菌株对目标农药的降解率.结果显示该菌株对5种农药的降解率分别为克百威55.58%、异丙威62.74%、辛硫磷77.55%、毒死蜱56.59%和氯氰菊酯81.8%.表明该菌株有很强的逆境生长潜能,对有机磷、氨基甲酸酯和除虫菊酯等3类农药具有不同的降解效能,是一株具有开发价值的细菌.In order to screen the bacteria strains that could degrade pesticides of organophosphous, carbamate and pyrethrin, Sphingomonas sp. XJ was isolated from the suburbs of Guangzhou. The pesticide degradability of Sphingomonas sp. XJ was enhanced by enrichment culture method with inorganic salt and target pesticides by using gas chromatography. The results showed that degradation rates of Sphingomonas sp. XJ to carbofuran, isoprocarb, phoxim, chlorpynfos and cypermethrin were 55.58%, 62.74%, 77.55% , 56. 59% and 81.8% , respectively. It was suggested that this bacteria strain could grow under the stress conditions and degrade organophosphous, carbamate and pyrethrin efficiently.

关 键 词：鞘氨醇单胞菌 降解 农药 富集培养法 

分 类 号：S431.191[农业科学—农业昆虫与害虫防治] S432.29[农业科学—植物保护]