生物技术通报 ›› 2025, Vol. 41 ›› Issue (12): 16-26.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0467

• 综述与专论 • 上一篇    下一篇

种子休眠及其调控机制研究进展

段若昕(), 陈盈盈, 林金星, 李瑞丽()   

  1. 北京林业大学生物科学与技术学院 林木遗传育种全国重点实验室 林木育种与生态修复国家工程研究中心 林木、花卉遗传育种教育部重点实验室 树木花卉育种生物工程国家林业和草原局重点实验室,北京 100083
  • 收稿日期:2025-05-07 出版日期:2025-12-26 发布日期:2026-01-06
  • 通讯作者: 李瑞丽,女,博士,教授,研究方向 :植物分子细胞生物学;E-mail: liruili@bjfu.edu.cn
  • 作者简介:段若昕,女,硕士研究生,研究方向 :植物分子细胞生物学;E-mail: ruoxinduan1228@bjfu.edu.cn
  • 基金资助:
    农业生物育种国家科技重大专项(2023ZD04069);国家自然科学基金项目(32270368);国家自然科学基金项目(31970182);北京林业大学“5·5工程” 科研创新团队项目(BLRC2023C06);大学生创新创业训练计划(202410022035)

Advance on Seed Dormancy and Its Regulation Mechanism

DUAN Ruo-xin(), CHEN Ying-ying, LIN Jin-xing, LI Rui-li()   

  1. College of Biological Sciences and Technology, Beijing Forestry University/State Key Laboratory of Tree Genetics and Breeding/National Engineering Research Center of Tree Breeding and Ecological/Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education/The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing 100083
  • Received:2025-05-07 Published:2025-12-26 Online:2026-01-06

摘要:

种子休眠是指种子在适宜环境条件下暂时无法萌发的现象,这一特性可以防止作物的收获前萌发。在林业中,研究种子休眠有利于森林培育,因此具有重要应用价值。研究表明植物激素脱落酸(abscisic acid, ABA)诱导和维持种子休眠,赤霉素(gibberellin, GA)解除休眠,二者以拮抗作用的形式调控种子的休眠和萌发。尽管已经有一些在激素调控种子休眠和萌发方面的研究,但是缺少对种子休眠分子机制的系统总结。因此,本文综述了种子休眠的类型、光温信号对种子休眠的影响,重点阐述了ABA、GA及激素间相互作用对种子休眠的调控机制,并对休眠特异性调控因子(如DOG1、DOG18、Sdr4)及表观遗传调控机制进行了归纳总结,以期加深对种子休眠复杂调控网络的理解,为植物性状的改良和分子设计育种提供理论参考。

关键词: 种子休眠, 脱落酸, 赤霉素, DOG1, 表观遗传调控

Abstract:

Seed dormancy is defined as the inability of seeds to germinate in favorable conditions, which can prevent pre-harvest germination of crops. Studying seed dormancy in forestry is beneficial to forest cultivation. Studies showed that the plant hormone abscisic acid (ABA) induces and maintains seed dormancy, while gibberellin (GA) breaks dormancy. The two hormones regulate seed dormancy and germination in an antagonistic manner. Although some studies have investigated the hormonal regulation of seed dormancy and germination, there is a lack of a systematic summary of the molecular mechanisms underlying seed dormancy. Therefore, this review provides an overview of the types of seed dormancy and the effects of light and temperature signals on seed dormancy. It focuses on the regulatory mechanisms of seed dormancy by ABA, GA, and the interactions between these hormones. Additionally, it summarizes the research on dormancy-specific regulatory factors (such as DOG1, DOG18, Sdr4) and epigenetic regulation mechanisms. The aim is to deepen the understanding of the complex regulatory network of seed dormancy and provide theoretical references for plant trait improvement and selective molecular breeding.

Key words: seed dormancy, abscisic acid, gibberellin, DOG1, epigenetic regulation