Are Plant Defenses Chemicals Commonly Sequestered and Metabolized by their Herbivores to Function as Infochemicals in Higher Trophic Level Interactions in Nature? (C02)

植物在两个空间上分离的栖息地：空气和土壤之间整合响应，不同的异养生物群落依赖于同一寄主。人们对地上食草动物和根系殖民者之间相互作用的化学介质知之甚少。利用代谢组学和转录组学，我们将描述草食受损植物根系的时空变化，并确定潜在的信号通路。我们将对已鉴定的性状进行基因修饰，以确定它们在与土壤细菌和菌根真菌相互作用中的生态功能，以及在田间试验中对草食抗性和植物适应性的影响。

Plants integrate responses between two spatially separated habitats: air and soil, with different communities of heterotrophs depending on the same host. Little is known about the chemical mediators of interactions between aboveground herbivores and root colonizers. Using metabo-lomics and transcriptomics, we will characterize spatiotemporal changes in roots of herbivore-damaged plants and identify underlying signalling pathways. We will genetically modify identified traits to determine their ecological function in interactions with soil bacteria and mycorrhizal fungi and the consequences for herbivore resistance and plant fitness in field experiments.