权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Host finding and recognition by specialised bees

通过专门的蜜蜂寻找和识别寄主

基本信息

批准号：
219942759
负责人：
Professor Dr. Manfred Ayasse
金额：
--
依托单位：
Institut für Evolutionsökologie und Naturschutzgenomik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2012
资助国家：
德国
起止时间：
2011-12-31 至 2015-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/219942759?language=en
关键词：
Host finding recognition specialised bees

项目摘要

Oligolectic bees collect pollen, on which they rear their offspring, from only a few related plant taxa. The cues these pollen specialist use to find and recognize their host plants are not well understood. The aim of this study is to evaluate in a comparative approach how different oligolectic bees, that are all specialized on Campanula pollen, find and recognise their host plants in comparison to a polylectic bee, and if different species of Campanula produce the same compounds that are used by oligoleges for flower recognition. Additionally, we will investigate, if the deceptive orchid Cephalanthera rubra, that is known to mimic visual cues of Campanula flowers, also mimics olfactory cues of Campanula flowers or pheromones of Chelostoma females in order to attract Chelostoma males for pollination. We will characterize the floral colour and scents of different Campanula species and of Ch. rubra, and determine their role in attracting the oligolectic/polylectic bees for pollination. We will perform electrophysiological analyses to identify possible behavioural-triggering compounds in complex odour blends of flowers and female Chelostoma bees. Electrophysiologically active compounds of flowers and bees will be identified by chemical analyses. Finally, the biological role of specific compounds for the oligolectic/polylectic bees will be tested in behavioural experiments, in large flight cages, where experimental conditions are very similar to that found in the field.

寡聚蜜蜂只从少数几个相关的植物类群中收集花粉，并以此来养育后代。这些花粉专家用来寻找和识别寄主植物的线索还没有得到很好的理解。本研究的目的是评估在比较的方法如何不同的寡聚蜜蜂，都是专门的风铃草花粉，发现和识别他们的宿主植物相比，一个pollectic蜜蜂，如果不同种类的风铃草产生相同的化合物所使用的oligoleges花识别。此外，我们将调查，如果欺骗性的兰花红头兰，这是已知的模仿风铃草花的视觉线索，也模仿风铃草花或信息素的Chelostoma女性的嗅觉线索，以吸引Chelostoma男性授粉。我们将描述不同风铃草属物种和红毛风铃草的花色和气味，并确定它们在吸引寡聚/多聚蜜蜂授粉中的作用。我们将进行电生理分析，以确定可能的行为触发化合物在复杂的气味混合物的花和女性Chelostoma蜜蜂。将通过化学分析鉴定花和蜜蜂的电生理活性化合物。最后，将在大型飞行笼中的行为实验中测试特定化合物对寡聚/多聚蜜蜂的生物学作用，其中实验条件与野外发现的非常相似。