植物中防御相关物质苯并噁嗪类的研究进展

王颖1,梅馨月1,2,刘屹湘2,3,杜飞2,3,杨敏2,3,*,祖艳群1,*
1云南农业大学资源与环境学院, 昆明650201;2云南农业大学农业生物多样性与病虫害控制教育部重点实验室, 昆明650201;3云南农业大学云南生物资源保护与利用国家重点实验室, 昆明650201

通信作者:杨敏;E-mail: yangminscns@126.com;祖艳群;E-mail: zuyanqun@qq.com

摘 要:

苯并嗪类(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, 主要为苯并嗪酮和苯并唑啉酮两大类。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。

关键词:苯并噁嗪; 结构多样; 防御反应; 多重功能

收稿:2020-08-26   修定:2021-03-08

资助: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)

Research progress of benzoxazinoids as defense related substances in plants

WANG Ying1, MEI Xinyue1,2, LIU Yixiang2,3, DU Fei2,3, YANG Min2,3,*, ZU Yanqun1,*
1College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; 2Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education Yunnan Agricultural University , Kunming 650201, China; 3State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China

Corresponding author: YANG Min; E-mail: yangminscns@126.com; ZU Yanqun; E-mail: zuyanqun@qq.com

Abstract:

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 identifcation, 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.

Key words: benzoxazinoids; structural diversity; defense responses; multiple function

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