摘要
苯并噁嗪类(BXs)化合物是禾本科中广泛存在的一类与防御相关的次生代谢物,主要为苯并噁嗪酮和苯并噁唑啉酮两大类。该类物质以不同的形式存在于植物的不同组织,参与植物的各种防御反应,帮助植物抵抗生物和非生物胁迫。本文综述了BXs的合成与分布、提取和鉴定、诱导影响因子以及多重防御功能。近期的研究表明,BXs除了具有杀虫、抗病、化感等作用外,还能络合金属离子并作为信号因子参与调节其他防御反应,如影响根食动物取食,调控开花时长和生长素代谢,调控根际微生物群落等。对BXs结构和功能的全面了解,有助于将该类物质开发成为新型环境友好型的抗有害生物的化合物,同时挖掘更多与BXs防御功能相关的基因,为农田系统有害生物防治和可持续发展增添新思路和方向。
Benzoxazinoids(BXs)are regarded as a class of secondary metabolites of general defense in Poaceae,mainly including two classes:benzoxazolinones and benzoxazinones.These compounds exist in different parts of plant with different structures and participate in various defensing responses to tolerate biotic and abiotic stresses.This review summarized the synthesis and distribution,extraction and identification,inducing factors and multiple defensing functions of BXs.Except insecticidal,antimicrobial and allelopathic activities,their biological functions have been recently much further elucidated in chelating metal ion and acting signaling molecules to regulate other defensing responses,such as affecting the feeding of root herbivores,regulating flowering time and auxin metabolism,modulating rhizosphere microbial communities.Investigating the structure and function of BXs,would help to develop them into the new Environmentally-friendly anti-microbial compounds.Meanwhile,exploring more defense-related genes of BXs,would be a new clue and direction for future research in pest control and sustainable development of agricultural systems.
作者
王颖
梅馨月
刘屹湘
杜飞
杨敏
祖艳群
WANG Ying;MEI Xinyue;LIU Yixiang;DU Fei;YANG Min;ZU Yanqun(College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China;Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education Yunnan Agricultural University,Kunming 650201,China;State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan,Yunnan Agricultural University,Kunming 650201,China)
出处
《植物生理学报》
CAS
CSCD
北大核心
2021年第4期767-779,共13页
Plant Physiology Journal
基金
国家自然科学基金(31600346和31972328)
云南省农业联合专项(2017FG001-052和2018FG001-046)。
关键词
苯并噁嗪
结构多样
防御反应
多重功能
benzoxazinoids
structural diversity
defense responses
multiple function