植物DIR家族成员结构特征及生物学功能研究进展
Research Progress on Structural Characteristics and Biological Functions of DIR Family Members in Plants
摘要
Abstract
Throughout their growth and development,plants are exposed to numerous adverse environmental conditions.In response to these stresses,plants synthesize secondary metabolites such as lignin and lignans,which contribute to cell wall reinforcement and defense.Dirigent(DIR)proteins were characterized as a family of auxiliary proteins in plants,typically containing a conserved dirigent domain.They have been implicated in lignin polymerization and lignan biosynthesis by mediating the stereo-and regioselectivity of oxidative coupling reactions.In recent years,DIR family in various plant species have been extensively studied for their roles in plant growth,development,and responses to biotic and abiotic stresses.This review comprehensively focuses on recent advances in the structural characteristics,subfamily classification,and biological functions of the DIR family members in plants.It particularly emphasizes elucidating the mechanisms by which DIR genes respond to stresses such as drought,low temperature,and pathogen infection.The information synthesized in this review provides the theoretical basis for elucidating how DIR genes regulate plant growth,development,stress tolerance,and quality formation.It will ultimately guide the development of elite germplasm characterized by high yield,superior quality,and broad-spectrum stress tolerance.关键词
DIR/木质素/木脂素/生物和非生物胁迫Key words
DIR/lignin/lignan/biotic and abiotic stresses引用本文复制引用
张金鹏,杨梦平,孙旭红,李志新,娄树宝,邢金月,王怀鹏,宋继玲..植物DIR家族成员结构特征及生物学功能研究进展[J].植物遗传资源学报,2026,27(1):37-49,13.基金项目
黑龙江省农业科技创新跨越工程农业科技基础创新优青项目(CX22YQ31) （CX22YQ31）
国家马铃薯产业技术体系齐齐哈尔综合试验站(CARS-09-ES37) （CARS-09-ES37）
科技部、财政部国家科技资源共享服务平台项目(NCGRC-2025-44) （NCGRC-2025-44）
农业种质资源保护项目(22250292,22250651)The Excellent Youth Project for Agricultural Science and Technology Basic Innovation under the Agricultural Science and Technology Innovation Leapfrogging Program of Heilongjiang Province(CX22YQ31) （22250292,22250651）
Qiqihar Comprehensive Experiment Station of the National Potato Industry Technology System(CARS-09-ES37) （CARS-09-ES37）
Ministry of Science and Technology,Ministry of Finance National Science and Technology Resource Sharing Service Platform Project(NCGRC-2025-44) （NCGRC-2025-44）
Agricultural Germplasm Resources Conservation Project(22250292,22250651) （22250292,22250651）
