College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China.
Int J Mol Sci. 2023 Dec 6;24(24):17200. doi: 10.3390/ijms242417200.
Bud dormancy and release are essential phenomena that greatly assist in adapting to adverse growing conditions and promoting the holistic growth and development of perennial plants. The dormancy and release process of buds in temperate perennial trees involves complex interactions between physiological and biochemical processes influenced by various environmental factors, representing a meticulously orchestrated life cycle. In this review, we summarize the role of phytohormones and their crosstalk in the establishment and release of bud dormancy. External environmental factors, such as light and temperature, play a crucial role in regulating bud germination. We also highlight the mechanisms of how light and temperature are involved in the regulation of bud dormancy by modulating phytohormones. Moreover, the role of nutrient factors, including sugar, in regulating bud dormancy is also discussed. This review provides a foundation for enhancing our understanding of plant growth and development patterns, fostering agricultural production, and exploring plant adaptive responses to adversity.
芽休眠和萌发是植物适应不利生长条件和促进多年生植物整体生长和发育的重要现象。温带多年生树木芽的休眠和萌发过程涉及到受各种环境因素影响的生理生化过程之间的复杂相互作用，代表了一个精心编排的生命周期。在这篇综述中，我们总结了植物激素及其相互作用在芽休眠的建立和释放中的作用。外部环境因素，如光和温度，在调节芽萌发中起着关键作用。我们还强调了光和温度如何通过调节植物激素来参与芽休眠的调节。此外，还讨论了包括糖在内的营养因素在调节芽休眠中的作用。这篇综述为我们增强对植物生长和发育模式的理解、促进农业生产以及探索植物对逆境的适应反应提供了基础。
