---

期 刊 ：植物保护学报 2000年

关键词：斑蟊素；菜蛾；消化酶；酯酶；毒杀机理；

Keywords:cantharidin, diamondback moth, enzyme variety, poison mechanism,

摘 要 ：测定斑蟊素饲喂对菜蛾Ｐｌｕｔｅｌｌａ ｘｙｌｏｓｔｅｌｌａ Ｌ．幼虫体主要消化酶和酯酶的影响。结果表明，斑蝥素处理后试虫的主要消化酶类平均活性变化不大，与对照组相比，蛋白酶、脂肪酶平均活性分别被抑制了８．７１％和１５．６９％，ａ－淀粉酶活性较对照组增加了６．７５％，均未达到显著差异水平；酯酶中的磷酸酯酶活性平均降低２５．３３％，未达显著差异水平，乙酰胆碱酯酶和羧酸酯酶活性显著提高，３６ｈ内平均比活

Abstract:This paper represents the results of some digestive and esterases enzymes dynamics of the diamondback moth larva after cantharidin feeding before death. The results showed that the average activities of Proteinase, Lipase, and acid Phospharatase decreased

---