Chemosystematics and Pollination of Gongora (Orchidaceae)

贡戈拉（兰科）的化学系统学和授粉

• 批准号: 8700331
• 负责人: Norris Williams
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-05-01 至 1990-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8700331&HistoricalAwards=false
• 关键词: Chemosystematics; Pollination; Gongora; Orchidaceae

Drs. Williams and Dressler at the University of Florida and their colleagues in Ecuador will study the interaction between Gongora orchid species and their native pollinators, bees of the euglossine group. The study will include analysis by gas- chromatography and mass-spectrometry of the chemistry of floral fragrances emitted by the orchids, which serve as attracting cues for pollinators. Field experiments in the tropics are designed to test whether orchid species produce diagnostic floral fragrances that attract only particular pollinating bees, or whether floral odors serve a "generalist" function, attracting many different pollinators. The results will be important in understanding the evolution of reproductive isolating barriers among orchid species and in determining the range of chemical cues that orient insect behaviors.

Drs。佛罗里达大学的Williams和Dressler以及他们在厄瓜多尔的同事将研究贡戈拉兰科植物和它们的本地传粉者（eugine组的蜜蜂）之间的相互作用。这项研究将包括气相色谱法和质谱法对兰花散发的花香化学成分进行分析，这些香味可以作为吸引传粉者的线索。在热带地区进行的实地实验旨在测试兰花物种是否产生仅吸引特定传粉蜜蜂的诊断性花香，或者花香是否具有“通才”功能，吸引许多不同的传粉昆虫。这一结果对于理解兰科植物间生殖隔离屏障的进化以及确定昆虫行为的化学线索范围具有重要意义。