稻纵卷叶螟成虫对植物挥发物的触角电位反应
EAG responses of adult Cnaphalocrocis medinalis to plant volatiles
位 博；高慧颖；郑许松；徐红星；阮永明；吕仲贤；朱平阳
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DOI：10.7679/j.issn.2095-1353.2022.102
作者单位：浙江师范大学化学与生命科学学院，金华 321004； 浙江省农业科学院植物保护与微生物研究所，杭州 310021
中文关键词：稻纵卷叶螟；生理状态；植物挥发物；浓度；EAG反应
英文关键词：Cnaphalocrocis medinalis; physiological state; plant volatile; concentration; EAG response
中文摘要：
【目的】 研究稻纵卷叶螟 Cnaphalocrocis medinalis成虫对8种不同浓度植物挥发物的触角电位反应，为研制高效稻纵卷叶螟两性引诱剂奠定理论基础。【方法】 采用触角电位Electroantennogram (EAG) 技术测定稻纵卷叶螟未交配雌蛾和雄蛾取食蜂蜜水、未交配雌蛾和雄蛾取食清水，以及已交配雌蛾和雄蛾取食蜂蜜水后对苯甲醛、苯乙醛、芳樟醇、1-庚醇、己醛、水杨酸甲酯、顺-3-己烯醛和乙酸苯甲酯8种不同浓度植物挥发物的触角电位反应。【结果】 稻纵卷叶螟雄蛾对植物挥发物的触角电位反应值高于雌蛾，未交配的雌蛾和雄蛾对植物挥发物的触角电位反应值高于已交配雌蛾和雄蛾；取食蜂蜜水未交配的雌蛾和雄蛾对植物挥发物的触角电位反应值高于取食清水未交配的雌蛾和雄蛾的。取食蜂蜜水未交配雄蛾和取食清水未交配雌蛾和雄蛾在己醛500 g/L浓度时EAG反应值最大，取食蜂蜜水已交配雌蛾和取食蜂蜜水未交配雄蛾在己醛100 g/L浓度时EAG反应值最大，取食蜂蜜水已交配雄蛾在苯乙醛500 g/L浓度时EAG反应值最大。【结论】 8种不同浓度植物挥发物都能引起不同生理状态稻纵卷叶螟的触角电位反应。稻纵卷叶螟成虫对同种植物挥发物不同浓度的敏感度不同，性别、交配前后和不同取食的稻纵卷叶螟成虫对不同浓度植物挥发物的敏感度也不同。稻纵卷叶螟成虫对己醛反应灵敏，低浓度己醛能引起稻纵卷叶螟反应；苯乙醛能引起未交配的稻纵卷叶螟雌、雄蛾的强烈反应。
英文摘要：
[Objectives] To investigate the electroantennogram (EAG) responses of adult Cnaphalocrocis medinalis to 8 plant volatiles
in order to develop efficient attractants for this species. [Methods] The EAG responses of adult C. medinalis moths to different
concentrations of the plant volatiles benzaldehyde, phenylacetaldehyde, linalool,
heptanol, hexanal, methyl salicylate, cis-3-hexenal and benzyl acetate, were
measured in both sexes, in mated and unmated individuals and in individuals
feeding on honey-water and those feeding on water. [Results] The EAG responses of males to plant volatiles were stronger than
those of females and unmated females and males were more responsive to plant
volatiles than mated moths. Unmated females and males provided with honey water
were more responsive to plant volatiles than those provided with only water.
500 g/L hexanal elicited the strongest EAG responses from unmated male moths
provided with ether honey-water or water. However, 100 g/L hexanal elicited the
strongest EAG responses from mated female and unmated male moths provided with
honey-water. 500 g/μL phenylacetaldehyde elicited the strongest EAG responses
in mated male moths feeding on honey water. [Conclusion] EAG responses of C. medinalis to
eight different plant volatile varied with the concentration of the
volatile in question, with the sex of the moth, its mating status and whether
it was feeding on honey-water or water. C. medinalis is most sensitive
to hexanal but phenylacetaldehyde can also induce strong EAG responses from
unmated female and male moths.