昆虫传粉行为造成的选择压力是塑造植物物种的适应与分化的重要动力，而昆虫在复杂自然环境中对花气味的识别与行为决策机制是决定昆虫传粉行为的关键。在本项目中我们以前期建立的兰科杓兰属无苞杓兰-果蝇传粉系统为平台,研究花气味中多种挥发性化合物（VOCs）以及背景环境中的气味信号对传粉果蝇行为的影响，从而为解析复杂嗅觉信号对传粉昆虫识别响应目标花气味的影响作用提供新的研究切入点。并进一步利用神经递质阻抗药物研究传粉果蝇不同神经递质回路对惕各酸乙酯的趋向行为，以及对混合花气味和多种环境气味信息行为决策的调控作用。本研究计划探索的传粉过程中昆虫神经系统识别复杂气味信息的作用方式，特别是研究植物群落及环境信息对昆虫传粉行为的影响，是帮助我们理解昆虫植物交互系统的演化过程以及应对全球传粉系统危机的重要途径。

Selective pressures caused by insect pollinating behaviors shape the adaptation and speciation of plant species, and the detection and behavior responding to floral odors among complex olfactory signals are the key element in pollination process. In this project, we will take the advantage of our established Orchid-fly pollination system (C.bardophianum-D.immigrans) to study the pollinating behavioral decision responding to multiple floral odor mixture in complex environmental olfactory signals. What’s more, using neurotransmitters antagonists we will dissect the function of different circuits underlying these multi-factor based decisions in the context of floral odors. Our study of the processing of floral odor with complex environmental odor signals in pollination, especially the effect of plant-environment-insect communication, help us to understand the evolution of insect-plant interaction, as well as to ease the global pollination crisis.