| 茶皂素对菜青虫体内几种酶活性的影响 |
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| 引用本文： | 王小艺,黄炳球.茶皂素对菜青虫体内几种酶活性的影响[J].茶叶,1999,25(4):193-196. |
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| 作者姓名： | 王小艺 黄炳球 |
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| 作者单位： | 中国农业大学昆虫学系!北京100094(王小艺)，华南农业大学昆虫毒理研究室!广州510642(黄炳球) |
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| 摘 要： | 用茶皂素连续饲喂菜粉蝶ＰｉｅｒｉｓｒａｐａｅＬ．５龄初期幼，测定其体内中肠酯酶，蛋白酶、微粒体多功能氧化ＭＦＯ的活性以及血淋巴糖总量、血淋巴和中肠蛋白质总量等生理指标。这些测定的结果表明，茶皂素对菜粉蝶幼虫体内解毒酶和消化酶的影响可能是其对农药起到增效作用的一个重要因素。
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| 关 键 词： | 花皂素 菜粉蝶 中肠酯酶 蛋白酶 MFO 农药增效 |
Effects of tea saponin on several enzymes of the imported cabbage worm pieris rapae L. |
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| Wang Xiaoyi,Huang Bingqiu.Effects of tea saponin on several enzymes of the imported cabbage worm pieris rapae L.[J].Journal of Tea,1999,25(4):193-196. |
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| Authors: | Wang Xiaoyi Huang Bingqiu |
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| Institution: | Wang Xiaoyi 1 Huang Bingqiu 2 |
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| Abstract: | The activities of esterases,proteases and mixed function oxidases (MFO) in midgut,total sugar content in hemolymph,total protein content in hemolymph and midgut of the 5th instar larvae of the imported cabbage worm pieris rapae were determined after treated with tea saponin. The results indicated that activities of proteases in midgut were inhibited notably after feeding or injecting with tea saponin into the hemocoel,and activities of mixed function oxidases also decreased to certain degree. But the activities of esterases in midgut did not show obvious changes. Results also demonstrated that the content of total protein in hemolymph and midgut decreased markedly while content of sugar in hemolymph had no significant differences. Those results suggested that the influence of tea saponin on the detoxicated and digestive enzymes was potential one of important mechanisms which tea saponin could enhance insecticidal activities of pesticides. |
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| Keywords: | Tea saponin Pieris rapae esterases proteases mixed function oxidases |
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