›› 1993, Vol. 36 ›› Issue (2): 172-176.

• 研究论文 • 上一篇    下一篇

蓼二醛对蚜虫的拒食活性

张钟宁 刘珣 娄照样 李宏文 朱树勋 邹丰   

  • 出版日期:1993-05-20 发布日期:1993-05-20

THE ANTIFEEDANT ACTIVITY OF POLYGODIAL AGAINST APHIDS

ZHANG ZHONG-NING LIU XUN LOU ZHAQ-XIANG LI HONG-WENU ZHU SHU-XUN ZOU FENG   

  • Online:1993-05-20 Published:1993-05-20

摘要: 辣蓼(Polygonum hydropiper L.)中的天然产物蓼二醛((-)-POLYGODIAL)具有很好的昆虫拒食活性。本文介绍了提取、分离的方法和含量测定。结果表明,我国辣蓼叶中含有蓼二醛约为0,08%。合成的蓼二醛在室内对空气、光和热的半衰期分别为34.6天、33.8天和15,6天。室内外生测结果表明,天然蓼二醛的乙醚提取物对蚜虫有很好的柜食活性。

关键词: 辣蓼, 蓼二醛, 蚜虫, 拒食剂

Abstract: It has been shown that the natural product, (-)-polygodial extracted from Polygounm hydropiper L. prossesses very good antifeedant activity to instects. Methods of extraction, purification and content measurement of this natural product are reinvestigated in our laboratory.The content of polygodial in the leaves of the plant in China is about 0.08%. The half-life of synthetic polygodial in air, under light and in heat (55-60℃) are 34.6 days, 33.8 days and 15.6 days respectively. The results of indoor and field tests showed that the nature polygodial extracted from the plant by ethyl ether can be used against aphids.

Key words: Polygonum hydropiper L.——polygodial——aphid——antifeedant