Alcoholism in cockchafers: orientation of male Melolontha melolontha towards green leaf alcohols
Alcoholism in cockchafers: orientation of male Melolontha melolontha towards green leaf alcohols
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金龟子酗酒：雄性金龟子对绿叶醇的定向
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Hilker
中科院分区：
文献类型：
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作者：
A. Reinecke;J. Ruther;T. Tolasch;W. Francke;M. Hilker
抽象的。通过田间试验和利用植物挥发物进行电生理实验，研究了危害农业和园艺的重要害虫欧洲金龟子的化学定向。总共有16种典型的植物挥发物可以在雄性蟑螂身上引起电生理反应。漏斗捕捉场生物测定表明，绿叶醇(即(Z)-3-己烯-1-醇、(E)-2-己烯-1-醇和1-己醇)吸引雄性，而相应的醛和乙酸酯行为不活跃。此外，受机械损伤的水曲柳、欧洲栓皮栎和白果叶挥发物也能引诱雄鸟，但水曲柳叶片的挥发物对雄鸟的引诱作用明显高于其他寄主植物。来自完整的西洋参叶片的气味对黑斑潜蝇雄虫没有吸引力。雌性没有被任何测试的挥发性来源所吸引。这些结果表明，植物挥发物在黑斑潜蝇的交配过程中起着与有性激动素相似的作用，就像森林金龟子一样。然而，这两个物种对绿叶酒精的反应有显著的差异。
Abstract. Chemical orientation of the European cockchafer, Melolontha melolontha L., a serious pest in agriculture and horticulture, was investigated by field tests and electrophysiological experiments using plant volatiles. In total, 16 typical plant volatiles were shown to elicit electrophysiological responses in male cockchafers. Funnel trap field bioassays revealed that green leaf alcohols (i.e. (Z)-3-hexen-1-ol, (E)-2-hexen-1-ol and 1-hexanol) attracted males, whereas the corresponding aldehydes and acetates were behaviourally inactive. Furthermore, male cockchafers were attracted by volatiles from mechanically damaged leaves of Fagus sylvatica L., Quercus robur L. and Carpinus betulus L. However, volatiles emitted by damaged leaves of F. sylvatica attracted significantly more males than those from the other host plants. Odour from intact F. sylvatica leaves was not attractive to M. melolontha males. Females were not attracted by any of the tested volatile sources. The results suggest that plant volatiles play a similar role as a sexual kairomone in mate finding of M. melolontha, as has been shown for the forest cockchafer, Melolontha hippocastani F. Nevertheless, both species show remarkable differences in their reaction to green leaf alcohols.