Herbivore-induced plant volatiles: plant and insect responses

挥发性有机化合物可以在植物生态中发挥主导作用。食草动物诱导的植物挥发物(HIPV)在许多农艺植物中都有很好的文献记载，它们在吸引寄生蜂和捕食者方面发挥了作用，从而为发射植物提供了间接防御。人们还不太清楚的是，HIPV在攻击同一种植物的不同类型的昆虫食草动物中的影响，以及昆虫食草动物是否能习惯于来自宿主植物的这些嗅觉信号。据预测，全球气候变化的关键参数--二氧化碳和温度上升--将改变植物的防御化学，并可能使农作物更容易受到虫害的影响。这些大气因素对HIPV的影响研究很少。我建议从植物、食草动物群落和个体食草动物三个角度来探讨HIPV。具体而言，拟议研究的目标是：

Volatile organic compounds can play a dominant role in the ecology of plants. Herbivore-induced plant volatiles (HIPVs) are well documented for a number of agronomic plants, as is their role in attracting parasitoids and predators, thus providing indirect defense for the emitting plant. What is far less well know is the influence of HIPVs among different types of insect herbivores attacking the same plant, and whether insect herbivores can habituate to these olfactory signals from their host plants. Key parameters of global climate change - increasing CO2 and temperature - are predicted to alter plant defensive chemistry and may make crops more vulnerable to pests. Effects of these atmospheric factors on HIPVs has been little studied. I propose to explore HIPVs from three perspectives, that of the plant, the herbivore community and individual herbivores. Specifically, the objectives of the proposed research are: