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|本期目录/Table of Contents|

小桐子果壳提取物杀虫活性的生物测定

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年01期
页码:
129-133
栏目:
植物化学与化学生物学
出版日期:
2011-01-15

文章信息/Info

Title:
Bioassay on insecticidal activity of extracts from Jatropha curcas seedcase
作者:
李育川12 郭巧生2* 王定康1 张学海2 郭菲2
1.昆明学院, 昆明 650214; 2.南京农业大学 中药材研究所, 南京 210095
Author(s):
LI Yu-Chuan12 GUO Qiao-Sheng2* WANG Ding-Kang1 ZHANG Xue-Hai2 GUO Fei2
1.Kunming University, Kunming 650214, China;2.Insititute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China
关键词:
小桐子果壳 提取物 杀虫活性测定
Keywords:
seedcase of Jatropha curcas extract insecticidal activity bioassay
分类号:
-
DOI:
-
文献标识码:
A
摘要:
以水、乙醇、正丁醇、乙酸乙酯、氯仿和石油醚为溶剂,采用冷浸法对小桐子果壳进行粗提,并分别测定各粗提物对豌豆长管蚜和菜青虫的毒力,从中筛选出毒力最强的粗提物进一步对菜青虫进行作用方式的测定。6种溶剂粗提物对豌豆长管蚜和菜青虫的毒力测试结果表明:三氯甲烷提取物和乙醇提取物的活性显著高于其它溶剂提取物,且两种提取物对豌豆长管蚜的毒力与70%吡虫啉均无显著差异,证明小桐子果壳含有丰富的杀虫活性物质,其所含的杀虫活性物质可采用乙醇和三氯甲烷冷浸提取;乙醇提取物对菜青虫主要是拒食作用,而三氯甲烷提取物则既有拒食作用,又有触杀作用。利用小桐子果壳开发植物源农药前景广阔。
Abstract:
Crude extracts from seedcase of Jatropha curcas were obtained using water,ethanol,butanol,ethyl acetate,chloroform and petroleum ether by cold extracting method,and toxicity of each crude extract against Acyrthosiphon pisum and Pieris rapae was studied. Then the strongest of them was chosen to measure using 4 age of P.rapae by leaf dipping method and pest dropping application. The results showed that in the test of the six crude extracts against A.pisum and P.rapae,the toxicity of chloroform and ethanol crude extracts were obviously higher than that of the others. They had no obvious difference comparing to 70% imidacloprid when the toxicity effect A.pisum. It’s found that the seedcase of Jatropha curcas contained rich insecticidal activity substance,they were extracted by chloroform and ethanol with cold extracting method. Furthermore,the main effect of ethanol extract was antifeedant on Pieris rapaeand the effect of chloroform extract was not only antifeedant but also contact action. It was a good future to develop botanical pesticides for seedcase of Jatropha curcas.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2011-04-07