生物技术通报 ›› 2026, Vol. 42 ›› Issue (9): 70-81.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0914

• 植物发育生物学专题 • 上一篇    下一篇

TIFY转录因子在植物生长发育和逆境胁迫响应中的作用

宋文清1,2, 陈智翔1, 李雨倩1,2, 王海龙1, 邢国芳2(), 张杰伟1()   

  1. 1.北京市农林科学院 农业基因资源与生物技术北京市重点实验室 作物分子设计与智慧育种北京市重点实验室,北京 100097
    2.山西农业大学农学院,晋中 030801
  • 收稿日期:2025-08-23 出版日期:2026-09-26 发布日期:2026-09-16
  • 通讯作者: 邢国芳sxauxgf@126.com
    张杰伟jwzhang919@163.com
  • 基金资助:
    国家重点研发计划(2023YFD1200700);国家重点研发计划(2023YFD1200704);北京市农林科学院科技创新能力建设专项(KJCX20230203);内蒙古自治区科技计划(2025KJHZ0023-02)

Roles of TIFY Transcription Factors in Plant Growth, Development and Stress Adaptation

SONG Wen-qing1,2, CHEN Zhi-xiang1, LI Yu-qian1,2, WANG Hai-long1, XING Guo-fang2(), ZHANG Jie-wei1()   

  1. 1.Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing Key Laboratory of Crop Molecular Design and Intelligent Breeding, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097
    2.College of Agriculture, Shanxi Agricultural University, Jinzhong 030801
  • Received:2025-08-23 Published:2026-09-26 Online:2026-09-16

摘要:

TIFY转录因子是植物特有的一类转录因子,含有高度保守的TIF[F/Y]XG基序,可分为TIFY、JAZ、PPD和ZML 4个亚家族。随着植物基因组学和功能基因组学的发展,TIFY转录因子在多种植物中被鉴定,且该基因家族在不同物种中数量差异显著。本文综述了TIFY转录因子的结构特征,系统阐述了其在植物生长发育(如叶片、花器官等)、激素信号转导(如茉莉酸、脱落酸等)以及逆境胁迫响应(包括生物胁迫、低温、干旱等)中的作用。现有研究已明确TIFY转录因子在植物生长发育与逆境响应中具有重要作用,然而其特异性作用机制尚未完全阐明;翻译后修饰(如甲基化、磷酸化等)对其功能的精细调控作用亦有待深入解析。未来可整合比较基因组学,系统分析不同科属、不同倍性植物TIFY基因的共线性区块与演化轨迹,揭示其功能分化规律;依托X射线晶体学、冷冻电镜等结构生物学技术,解析TIFY蛋白核心结构域(如TIFY、JAS)的三维结构,明确其与靶蛋白、激素配体的互作界面;结合CRISPR-Cas9等基因编辑技术,深入解析TIFY转录因子调控机理,并通过基因工程策略定向开展遗传改良,为培育抗逆优质、高产广适的新一代作物提供重要候选基因。

关键词: TIFY, 基因家族, 转录因子, 生长发育, 激素信号, 茉莉酸, 胁迫响应, 三维结构

Abstract:

TIFY transcription factors are a class of regulators unique to plants, which harbor a highly conserved TIF[F/Y]XG motif and can be divided into four sub-families: TIFY, JAZ, PPD and ZML. Driven by advances in plant genomics and functional genomics, TIFY transcription factor genes have been systematically identified in a wide range of plant species, and the size of this gene family varies markedly among different plants. Here we summarize the structural features of TIFY transcription factors and systematically delineate their roles in growth and development (e.g., leaf morphogenesis, floral organ, etc.), hormonal signal transduction (especially jasmonic acid, ABA, etc.), and responses to diverse environmental stresses, including biotic attack as well as cold, drought. Although TIFY proteins have been conclusively implicated in plant growth, development, and stress responses, their precise mechanistic actions remain elusive, and the fine-tuning of their functions by post-translational modifications (e.g., methylation, phosphorylation, and ubiquitination) awaits further dissection. In the future, comparative genomics can be integrated to systematically analyze the collinear blocks and evolutionary trajectories of TIFY genes across different families, genera, and ploidy levels, thereby uncovering their functional differentiation rules. Leveraging structural biology techniques such as X-ray crystallography and cryo-electron microscopy, the three-dimensional structures of TIFY core domains (e.g., TIFY and JAS) can be resolved to pinpoint their interaction interfaces with target proteins and hormonal ligands. Coupled with CRISPR-Cas9-mediated gene editing, this will enable in-depth dissection of TIFY regulatory mechanisms and facilitate directed genetic improvement via genetic-engineering strategies, ultimately providing important candidate genes for breeding next-generation crops with robust stress tolerance and superior high-yield traits.

Key words: TIFY, gene family, transcription factor, growth and development, hormone signal, JA, stress response, three-dimensional structure