摘要
植物的木质化是指木质素单体氧化聚合形成的木质素在细胞壁上沉积的过程.由于涉及多步酶促反应,因而它是一个被精细调控的复杂而动态的生物学过程.木质化不仅有利于维持植物正常生命活动,而且能够增强植物适应外界生物和非生物胁迫的能力.更为重要的是,植物细胞壁是地球上最为丰富的可再生能源物质,因此,开展植物细胞壁木质化的研究具有重要的科学意义和应用价值.本文综合国内外的最新研究进展,简要介绍了植物木质化的过程和细胞类型,重点总结了木质化过程中的转录调控、microRNA调控、激素和环境调控,以及木质化发生的最新诱导体系和成像技术.这将有助于人们更全面深入地认识木质化,并为木质素生物工程的开发利用奠定重要的理论基础.
Lignification is a complex and dynamic process with lignin deposited in the cell wall,which can maintain central role in higher plant development and enhance resistance to various biotic and abiotic stresses.As plant cell wall is the most abundant renewable energy sources on the earth and lignification is a crucial developmental process,therefore research focusing on this process has important theory significance and practice value.This review summarized lignin composition,lignified cell types and the biosynthesis pathway,then focused on recent progress in the regulation of plant lignification,including transcriptional regulation,micro RNA,hormone and environmental factors,new induction systems of lignification,and imaging technologies.This will provide insights into molecular mechanisms in lignification and theoretical basis for exploration and utilization of lignin bioengineering.
作者
郭亚玉
许会敏
赵媛媛
吴鸿洋
林金星
GUO YaYu;XU HuiMin;ZHAO YuanYuan;WU HongYang;LIN JinXing(Beijing Advanced Innovation Center for Tree Breeding by Molecular Design,Beijing Forestry University,Beijing 100083,China;College of Biological Sciences and Biotechnology,Beijing Forestry University,Beijing 100083,China;College of Biological Sciences,China Agricultural University,Beijing 100193,China)
出处
《中国科学：生命科学》
CSCD
北大核心
2020年第2期111-122,共12页
Scientia Sinica(Vitae)
基金
国家自然科学基金中德合作项目(批准号:31761133009)
青年科学基金(批准号:31800504)资助.
关键词
木质化
木质素
细胞壁
调控机制
lignification
lignin
cell wall
regulation mechanism
作者简介
联系人:林金星,E-mail:linjx@ibcas.ac.cn
