摘要
铜(Cu)是人体和动植物必需的金属,参与多种形态、生理和生化过程;铜是多种酶的辅因子,在光合、呼吸作用和电子传递链中起重要作用,也是防御基因的结构组成部分。为了给今后植物铜胁迫的研究提供更系统的理论参考,基于前期研究的过量铜对植物萌发、生长、光合作用和抗氧化等生理过程的不利影响的基础上,综述了铜的生物学功能;过量铜对植物生长发育的毒害;铜转运、伴侣蛋白的作用以及植物对铜胁迫的耐受机制。展望了未来的研究方向,为制定合理维持铜稳态的有效策略提供依据。
Copper(Cu)is an essential metal for human body,animals and plants,and participates in various morphological,physiological and biochemical processes.Copper is a cofactor of many enzymes and plays an important role in photosynthesis,respiration and electron transport chain.It is also a structural component of defense genes.In order to provide more systematic theoretical reference for the future study of copper stress on plants,based on the adverse effects of excessive copper on physiological processes such as plant germination,growth,photosynthesis and anti-oxidation summarized in previous studies,this paper reviews the biological functions of copper,the toxicity of excessive copper to plant growth and development,the role of copper transporters and chaperone proteins,and the tolerance mechanism of plants to copper stress.The future research direction is prospected,which provides a basis for formulating effective strategies to maintain copper homeostasis.
作者
李佳
杜瑞英
王旭
陈光
LI Jia;DU Ruiying;WANG Xu;CHEN Guang(Institute of Quality Standard and Monitoring Technology for Agro-products,Guangdong Academy of Agricultural Sciences,Guangzhou 510640;Guangdong Provincial Key Laboratory of Quality&Safety Risk Assessment for Agro-products,Guangzhou 510640;Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality,Ministry of Agriculture and Rural Affairs,Guangzhou 510640)
出处
《中国农学通报》
2023年第11期18-28,共11页
Chinese Agricultural Science Bulletin
基金
科技创新战略专项资金(高水平农科院建设)(R2021YJ-QG006
R2022PY-QY006)
广州市基础与应用基础研究项目(202201010032)
国家自然科学基金(32072662)
“珠江人才计划”青年拔尖人才(2021QN02N297)
广东省基础与应用基础研究基金(2022A1515012580)
广东省农业科学院农业质量标准与监测技术研究所所长基金项目(DWJJ-202113,DWJJ-202209)
广东省农产品质量安全风险评估重点实验室(2019年度)(2019B121203009)。
关键词
铜毒害
铜稳态
吸收
转运
耐受机制
copper toxicity
copper homeostasis
absorption
transport
tolerance mechanism