自然界中的植食性昆虫本身都具有一定的隐蔽保护性,这为害虫防治带来了一定的难度。寄生性天敌(寄生蜂等)能够利用嗅觉感受来自寄主和植物的化学通讯来搜索、定位、发现和寄生目标害虫。本文着重综述了植物与害虫协同进化所形成的防御策略,以及害虫诱导的植物挥发信息物质在植物、昆虫及天敌三级营养关系中的生态功能,并对挥发物的诱导信号分子、基本特性、占主要成分的萜烯类化合物释放的分子调控机制、植物组织中时空表达特异性和多样性等代谢特征以及其应用前景都进行了详细阐述。
Herbivores are more difficult to control due to their concealment in field. However, parasitic wasps can effectively locate and parasitize target herbivores by using olfactory semiochemicals from host insects and plants. In this paper, the author clarified the defense strategy of plant co-evolution with insects and the ecological function of herbivore-induced plant volatiles in tritrophic system. The inducible signaling molecule, characteristics, the regulatory mechanism of terpenoids, the metabolic characteristics like the tissue-specific expression and diversity in different positions and stages and the prospects for application were summarized.