JAs、SAs介导的植物防御反应及在药用植物中的应用

Jasmonate and Salicylate-mediated Plant Defense Responses and Their Application in Medicinal Plants

茉莉酸(JA)和水杨酸(SA)介导的信号网络能调节植物防御反应。一般JA信号通路涉及抗虫反应,而SA通路则与抗病有关,JA和SA通路之间的交互作用在防御反应的微调中起重要作用。研究表明,JA和SA也能有效调节抗寄生植物的防御反应。文章综述了一些防御信号分子,尤其是JA和SA在植物防御中的作用,包括JA、SA介导的途径和JA/SA交互作用在抗病虫害和抗植物寄生中的作用;介绍茉莉酸、水杨酸类物质在药用植物研究中的初步应用。

Signaling networks mediated by jasmonic acid （JA） and salicylic acid （SA） can regulate plant defenses responses.Generally,JA-mediated signaling pathways are related to the regulations of anti-herbivore,while SA pathway is concerning defense responses against pathogens.Cross-talk between JAand SA-pathways plays important roles in fine-tuning defense responses.It is suggested that both jasmonates and salicylates are effectively able to mediate the defense responses of host plant to the parasitism of other plant.This review describes the functions of some defense signaling molecules in plant,especially JA and SA,including their role in responses to insect,pathogen and parasitism.In addition,the application of JA and SA to medicinal plant researches is mentioned.