| 周琼1,3;魏美才1;欧晓明2;肖炜1.苍耳倍半萜内酯和博落回生物碱对3种蔬菜害虫的活性比较[J].植物保护,2008,34(3):78-82. |
| 苍耳倍半萜内酯和博落回生物碱对3种蔬菜害虫的活性比较 |
| Comparative activity of sesquiterpene mactones from Xanthium sibiricum and alkaloids from Macleaya cordata against insect pests |
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| DOI： |
| 中文关键词: 苍耳倍半萜内酯 博落回总生物碱 拒食 忌避 小菜蛾 桃蚜 萝卜蚜 |
| 英文关键词:sesquiterpene sactones from Xanthium sibiricum alkaloids from Macleaya cordata antifeedant inhabiting deterrent Plutella xylostella Myzus persicae Lipaphis erysimi |
| 基金项目: |
| 周琼1 3;魏美才1;欧晓明2;肖炜1 |
| 1.中南林业科技大学昆虫系统与进化生物学实验室,长沙 410004;2.湖南化工研究院国家农药创制工程技术研究中心,长沙 410007;3.湖南科技大学生命科学与技术学院,湘潭 411201 |
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| 中文摘要: |
| 为探讨苍耳(Xanthium sibiricum)倍半萜内酯分离物L-Ⅱ(主要成分为4β,5β-环氧苍耳素-1α,4α-内过氧化物)的活性大小,将其与博落回(Macleaya cordata)总生物碱提取物MacSC(主要成分为血根碱和白屈菜红碱)的活性进行了比较研究。结果显示,两种测试物对试虫均表现较高活性,其中,苍耳倍半萜内酯分离物L-Ⅱ对小菜蛾(Plutella xylostella)4龄幼虫的选择性拒食中浓度(AFC50)为23.6 mg/L,活性强于博落回生物碱提取物MacSC(111.8 mg/L);在测试浓度为10 mg/mL时,L-Ⅱ处理组的小菜蛾4龄幼虫仅有4.30%发育为成虫,是对照的6.12%,小菜蛾蛹的羽化率为对照的12.05%,而MacSC的影响相对较低,两值分别为对照的33.89%和56.23%;在上述测试浓度,L-Ⅱ对桃蚜(Myzus persicae)和萝卜蚜(Lipaphis erysimi)均有较强的忌避作用,24 h忌避率分别为72.03%和74.47%,而MacSC对桃蚜的忌较效果较低(55.50%),对萝卜蚜无忌避活性。说明苍耳倍半萜内酯分离物L-Ⅱ对几种试虫的拒食、忌避和生长发育抑制活性均高于博落回总生物碱提取物MacSC。 |
| 英文摘要: |
| The comparative activity of sesquiterpene lactones from Xanthium sibiricum,the main active ingredient L-Ⅱ of which was 4β,5β-epoxyxanthatin-1α,4α-endoperoxide,and alkaloids from Macleaya cordata(MacSC),main active ingredients of which was sanguinarine and chelerythrine,against three insect pests,including diamondback moth Plutella xylostella(Lepidoptera: Plutellidae),peach aphid Myzus persicae(Hemiptera: Aphididae) and mustard aphid Lipaphis erysimi(Hemiptera: Aphididae),were studied in laboratory.The results showed that the two tested plants materials possessed high antifeedant,deterrent and development-inhibiting activities.The AFC50(antifeeding median concentration) values of L-Ⅱ and MacSC against P.xylostella were 23.6 mg/L and 111.8 mg/L,respectively,in choice bioassay.Meanwhile,they also had pupation-and eclosion-inhibiting activities against P.xylostella,with only 4.30% larvae developing into adults for L-Ⅱ and 23.80% for MacSC,when the tested concentration was 10 mg/mL.However,L-Ⅱ had deterrent effects on M.persicae and L.erysimi,with choice deterrent rate as 72.03% and 74.47%,respectively,but MacSC had lower deterrent effect on M.persicae and no deterrent effect on L.erysimi.These findings suggested that the sesquiterpene lactones from Xanthium sibiricum have stronger antifeedant,deterrent and development-inhibiting effects than alkaloids from Macleaya cordata on the insects tested. |
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