Dissertation Research: The Role of Chirality in Olfactory- Directed Aggregation of Pine Bark Beetles (Coleoptera: Scolytidae)

论文研究：手性在松皮甲虫嗅觉定向聚集中的作用（鞘翅目：小蠹科）

• 批准号: 8914625
• 负责人: David Wood
• 金额: $ 0.58万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-12-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914625&HistoricalAwards=false
• 关键词: Dissertation; Research; Role; Chirality; Olfactory

Bark beetles in the genus Ips produce and perceive blends of pheromone compounds. Ipsenol and ipsdienol are two pheromone and allomone components whose specificity may guide resource partitioning of the same host pine by sympatric species in different subgeneric groups. The stereochemistry of ipsdienol is particularly crucial to the aggregation behavior of I. pini. Because both males and females respond to male-produced blends of (-)-ipsdienol, the link between the stereospecificity of response and production can be tested directly by measuring the production of ipsdienol for each response group. In the sympatric species I. paraconfusus, the presence or absence of monoterpene precursors may delineate which hosts can be colonized. The analysis of extract samples using GC-MS instrumentation and field bioassays on the aggregation behavior of I. pini will improve understanding of Ips chemical ecology, a subject of great interest to foresters since bark beetles are serious forest pests.

Ips 属的树皮甲虫产生并感知信息素化合物的混合物。 异普烯醇和异普二烯醇是两种信息素和异激素成分，其特异性可以指导不同亚属组中的同域物种对同一寄主松的资源分配。 异丙二醇的立体化学对于 I. pini 的聚集行为尤其重要。 由于雄性和雌性都对雄性产生的 (-)-异丙二醇混合物有反应，因此可以通过测量每个反应组的异丙二醇产量来直接测试反应立体特异性和产量之间的联系。 在同域物种 I. paraconfusus 中，单萜前体的存在或不存在可以描述哪些宿主可以被定植。 使用 GC-MS 仪器对提取物样品进行分析以及对 I. pini 聚集行为的现场生物测定将提高对 Ips 化学生态学的了解，由于树皮甲虫是严重的森林害虫，这是林务人员非常感兴趣的一个主题。