植食昆蟲誘導植物之防禦反應,會隨植會昆蟲種類、植物組織及研究之化合物變化。環境因子,如土壤養分,也會影響植物對植食昆蟲之固有且誘導性防禦反應。土壤中之有益微生物,透過植物,可對地上部之植會見蟲產生正面或負面之影響,前者如提升植食昆蟲食物質量,後者如透過引發植物誘導性系統抗性及對植食昆蟲天敵之吸引,而這些效應與植物荷爾蒙有關。在自然環境下,植物同時受生物及非生物壓力刺激,造成荷爾蒙間訊息傳遞網絡間之互動,進而影響植物對生物及非生物壓力之反應。本篇討論昆蟲誘導植物之防禦反應時,土壤微生物在植物與昆蟲交互作用中扮演的角色,以及非生物因子之影響。
Herbivore-induced chemical defenses of plants vary according to the species of herbivores, plant tissues, and targeted chemical compounds. Additionally, environmental factors, such as soil nutrients, affect and induce plant chemical defenses to herbivores. Beneficial soil microorganisms may affect aboveground- herbivores positively by increasing food quantity, or negatively by attracting natural enemies of herbivores and promoting plant resistance. These effects are associated with phytohormones. In natural environment, plants would response simultaneously to biotic and abiotic stresses, which leads to crosstalk of phytohormone signaling networks and subsequently changes plant responses to stresses. This article discusses how soil microorganisms affect the interaction between plants and herbivores, and the influence of abiotic factors on the interaction.