Journal of Agricultural Science and Technology ›› 2022, Vol. 24 ›› Issue (2): 68-76.DOI: 10.13304/j.nykjdb.2020.0836

• BIOTECHNOLOGY & LIFE SCIENCE • Previous Articles     Next Articles

Advances in Regulatory Mechanism of Brassinolide on Plant Root Development

Zhiyong WU(), Hong GU, Dawei CHENG, Lan LI, Shasha HE, Ming LI(), Jinyong CHEN()   

  1. Key Laboratory of Fruit Growth Development and Quality Control,Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,China
  • Received:2020-09-30 Accepted:2020-12-06 Online:2022-02-15 Published:2022-02-22
  • Contact: Ming LI,Jinyong CHEN

油菜素内酯调控植物根系发育机制研究进展

吴志勇(), 顾红, 程大伟, 李兰, 何莎莎, 李明(), 陈锦永()   

  1. 中国农业科学院郑州果树研究所,果树生长发育与品质控制重点开放实验室,郑州 450009
  • 通讯作者: 李明,陈锦永
  • 作者简介:吴志勇 E-mail: wzyong199@163.com
  • 基金资助:
    中国农业科学院科技创新工程项目(CAAS-ASTIP-2018-ZFRI);河南省大宗水果产业技术体系项目(S2014-11)

Abstract:

Brassinosteroids (BRs) are new plant hormones discovered in the late 20 century. They are involved in regulating many aspects of plant growth and development, and have important regulatory roles in plant root development. Brassinolide (BL) is the first highly active BR which structure has been determined. This review first introduced the discovery of BR, the study of the signal pathway of BR on regulating root growth, and further elaborated the research progress of BR pathway transcription factors interacting with auxin, cytokinin (CTK), ethylene (ETH) and other signaling molecules to regulate root stem cell niche, root apical meristem, root cell elongation, lateral roots, root hairs, and root gravitropic. And it also put forward questions and prospects for the in-depth study of BR's regulation in plant root development. The review provided a theoretical basis for the application of BR in regulating plant root development.

Key words: brassinosteroid, plant hormones, transcription factors, root development, action mechanism

摘要:

油菜素甾醇(brassinosteroids,BRs)是20世纪后期发现的一类新型植物激素,参与调控植物生长发育的诸多方面,其中对植物根系发育过程具有重要的调控作用。油菜素内酯(brassinolide,BL)是最先确定结构的高活性BR。首先介绍了BR的发现、BR调控根系生长信号通路的进展,进一步阐述了BR通路转录因子与生长素(auxin)、细胞分裂素(cytokinin,CTK)、乙烯(ethylene,ETH)及其他信号分子互作对调控根系干细胞生态位、根尖分生区、根细胞生长、侧根、根毛以及根系向地性的作用机制,并对BR调控植物根系发育的深入研究提出问题及展望,为BR在调控植物根系发育中的应用提供理论依据。

关键词: 油菜素内酯, 植物激素, 转录因子, 根系发育, 作用机理

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