Response of Japanese Beetles (Coleoptera: Scarabaeidae) to Leaf Volatiles of Susceptible and Resistant Maple Species
Response of Japanese Beetles (Coleoptera: Scarabaeidae) to Leaf Volatiles of Susceptible and Resistant Maple Species
复制标题
日本甲虫（鞘翅目：金龟子科）对敏感和抗性枫树种叶片挥发物的响应
DOI：
10.1093/ee/26.2.334
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发表时间：
1997
影响因子：
1.7
通讯作者：
M. Byers
中科院分区：
文献类型：
--
作者：
John H. Loughrin;D. Potter;T. Hamilton;M. Byers
本文研究了4种不同落叶易感性的枫树品种中，日本瓢虫（Popillia japonica Newman）对组成性挥发物或取食性挥发物的近距离嗅觉反应。在陷阱区，易感树种棕榈槭（Acer palmatum Thunberg）和平叶槭（A. platanoides L.）的完整叶片的吸引力并不显著高于抗性树种红槭（A. rubrum L.）和糖化槭（A. saccharinum L.）。对于每一种枫树，被日本甲虫损坏的叶子比未损坏的叶子吸引的甲虫明显更多。甲虫对易感和抗性枫树的受损叶片没有区别。然而，在易感和抗性枫叶所释放的取食诱导化合物类型上存在显著差异。具体来说，易感枫树的叶子释放出相对较多的具有果状气味的酯类和花香化合物芳樟醇，而抗性枫树的叶子释放出更多的萜烯烃。讨论了挥发性化合物作为日本甲虫的引诱剂和摄食刺激剂或摄食威慑剂的可能作用。
We studied the close range olfactory response of Japanese beetles, Popillia japonica Newman, to constitutive or feeding-induced volatiles from leaves of 4 maple species differing in susceptibility to defoliation. In pitfall arenas, intact leaves of susceptible species, Acer palmatum Thunberg and A. platanoides L., were not significantly more attractive than those of resistant maples, A. rubrum L. and A. saccharinum L. Consistent with these results, the compounds emitted by intact maple leaves were generally similar across resistance groupings. For each maple species, leaves that had been damaged overnight by Japanese beetles attracted significantly more beetles than did undamaged leaves. Beetles did not discriminate between damaged leaves of susceptible and resistant maple species. Significant differences were noted, however, in the types of feeding-induced compounds emitted by susceptible and resistant maple leaves. Specifically, leaves of susceptible species emitted relatively higher amounts of esters with fruit-like odors and the floral fragrance compound linalool, whereas leaves of resistant maples emitted more terpene hydrocarbons. Possible roles of volatile compounds as attractants and feeding stimulants, or as feeding deterrents, for the Japanese beetle are discussed.