不同寄主植物对小菜蛾羧酸酯酶活性的影响

EFFECTS OF FOOD PLANTS ON TBE ACTIVITY OF CARBOXYLESTERASE OF THE DIAMONDBACK MOTH,PLUTELLA XYLOSTELLA (L. ) (LEPIDOPTERA: PLUTELLIDAE)

取食６种不同十字花科植物的小菜蛾各龄幼虫之间，α－ＮＡ羧酸酯酸和β－ＮＡ羧酸酯酶活性显著不同，其中以取食花椰菜的小菜蛾幼虫羧酸酯酶的活性最高。取食不同寄主植物的小菜蛾幼虫羧酸酯酶活性高低顺序为：花椰菜＞西洋菜＞白菜＞菜心＞甘蓝＞萝卜。

The activity of carboxylesterase from larvae of all 4 instars was greatly influenced by their food plants. The activity of carboxylesterase from larvae fed on cauliflower (Brassica oleracea L. var. Botrytis L.) was the highest and that on radish(Raphanus sativus L.) was the lowest among all the six kinds of food plant. The extentorder of the activity of carboxylesterase from the larvae fed on different food plants wasradish<cabbage (Brasrica oleracea L.var.capitata L.) <flowering Chinese cabbage(B.campestris L.ssp.Chineseis var.utilis Tsen et lee) <pak - choi [B.campestris L.ssp. Chineasis (L. ) Makino var.communis Tsen et Lee]<watercress (Nasturtiumofficinale R. ) <cauliflower.