| 苦豆子生物碱对小菜蛾体内部分杀虫剂代谢酶活性的影响 |
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| 引用本文： | 罗万春,张强.苦豆子生物碱对小菜蛾体内部分杀虫剂代谢酶活性的影响[J].昆虫学报,2003,46(1):122-125. |
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| 作者姓名： | 罗万春 张强 |
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| 作者单位： | 1. 山东农业大学农药毒理与应用技术省级重点实验室,泰安,山东,271018
2. 天津市农药检定所 |
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| 基金项目： | 山东省教育厅基金资助项目 (J0 0E15 ) |
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| 摘 要： | 以苦豆子Sophora alopecuroids 7种生物碱和小菜蛾Plutella xylostella幼虫为试材，研究了该生物碱对小菜蛾体内降解杀虫剂的羧酸酯酶、磷酸酯酶、谷胱甘肽-S-转移酶活性的影响。结果表明: 野靛碱和苦豆碱对羧酸酯酶活性有显著的抑制，为可逆抑制类型的非竞争性抑制作用；野靛碱等5种生物碱对酸性磷酸酯酶有明显的抑制，野靛碱对碱性磷酸酯酶有弱抑制作用；其中野靛碱等3种生物碱对谷胱甘肽-S-转移酶有明显的抑制作用。
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| 关 键 词： | 苦豆子 生物碱 杀虫剂 代谢酶 小菜蛾 |
| 文章编号： | 0454-6296(2003)01-0112-04 |
| 修稿时间： | 2001年8月26日 |
The effects of Sophora alopecuroids alkaloids on metabolic esterases of the diamond back moth |
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| LUO Wan-Chun,ZHANG Qiang.The effects of Sophora alopecuroids alkaloids on metabolic esterases of the diamond back moth[J].Acta Entomologica Sinica,2003,46(1):122-125. |
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| Authors: | LUO Wan-Chun ZHANG Qiang |
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| Abstract: | The effects of seven alkaloids from Sophora alopecuroids, a leguminous plant, on metabolic esterases of the larvae of the diamondback moth Plutella xylostella (L.) were studied. The results indicate that cytisine and aloperine could inhibit carboxylesterase activity through non-competitive inhibition. Sophoramine, sophoradine, matrine, oxymatrine and cytisine could inhibit the activity of acid phosphoresterase, and cytisine could also weakly inhibit the activity of alkaline phosphoresterase. In addition, three alkaloids, cytisine, sophramine and sophocarpine could inhibit the activity of glutathione-s-transferase in diamondback moth larvae. |
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| Keywords: | Sophora alopecuroids alkaloids pesticide metabolic esterase Plutella xylostella |
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