Dimethylfuran-lactone pheromone from males of Galerucella calmariensis and Galerucella pusilla
Dimethylfuran-lactone pheromone from males of Galerucella calmariensis and Galerucella pusilla
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DOI：
10.1007/s10886-005-9026-3
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发表时间：
2006-03-01
影响因子：
2.3
通讯作者：
Post, Susan L.
中科院分区：
文献类型：
--
作者：
Bartelt, Robert J.;Cosse, Allard A.;Post, Susan L.
雄性calmarigalerucella和pusilla Galerucella（鞘翅目：金虫科）在捕食寄主树叶时释放聚集信息素。从收集的挥发物中分离化合物是通过比较男性和女性提取物的气相色谱和气相色谱-触角电位检测来指导的。通过光谱法和微化学试验鉴定该化合物为新型二甲基呋喃内酯，12,13-二甲基-5,14-二氧杂环[9.2.1]四溴-1(13)，11-二烯-4- 1。该化合物的结构经合成证实，在野外生物试验中对两种昆虫的雌雄均有吸引作用。这些甲虫以前被引入北美作为入侵湿地杂草的生物控制剂，紫松花Lythrum salicaria，信息素可以成为监测种群的工具。本文介绍了一种基于雄性胫骨刺的两种鉴别方法。
Male Galerucella calmariensis and Galerucella pusilla (Coleoptera: Chrysomelidae) emit an aggregation pheromone while feeding on host foliage. Isolation of the compound from collected volatiles was guided by comparisons of gas chromatograms of extracts from males and females and by gas chromatography-electroantennographic detection. The compound was identified by a combination of spectrometric methods and microchemical tests as the novel dimethylfuran lactone, 12,13-dimethyl-5,14-dioxabicyclo[9.2.1]tetradeca-1(13),11-dien-4-one. The structure was confirmed by synthesis, and the synthetic compound attracted males and females of both species in field bioassays. These beetles were previously introduced into North America as biological control agents for the invasive wetland weed, purple loosestrife Lythrum salicaria, and the pheromone could become a tool for monitoring populations. A new method is described for distinguishing the two species based on the tibial spurs of the males.