绿薄荷茎叶乙醇提取物对小菜蛾幼虫解毒酶系的影响

Journal of Shanxi Agricultural Sciences(2020)

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Abstract
为探讨绿薄荷茎叶乙醇提取物对小菜蛾幼虫的作用机制,采用浸叶法,分别用不同浓度的茎叶提取物处理甘蓝叶片后喂食小菜蛾3龄幼虫,在12、24、36、48 h后测定其体内解毒酶系的活力变化.结果 表明,经处理后的小菜蛾体内乙酰胆碱酯酶(AchE)、羧酸酯酶(CarE)和谷胱甘肽-S-转移酶(GST-s)活力均为先激活后抑制,处理组的酶活力显著低于对照;绿薄荷叶提取物对小菜蛾体内解毒酶的抑制作用大于茎.研究可为应用绿薄荷提取物防治小菜蛾奠定基础.
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