Dissecting the complexity of local and systemic circadian communication in plants

npj Biological Timing and Sleep Pub Date : 2024-06-19 DOI:10.1038/s44323-024-00003-3

Mostafa Mortada, Lu Xiong, Paloma Mas

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Abstract

The plant circadian clock regulates daily and seasonal rhythms of key biological processes, from growth and development to metabolism and physiology. Recent circadian research is moving beyond whole plants to specific cells, tissues, and organs. In this review, we summarize our understanding of circadian organization in plants, with a focus on communication and synchronization between circadian oscillators, also known as circadian coupling. We describe the different strengths of intercellular coupling and highlight recent advances supporting interorgan communication. Experimental and mathematical evidence suggests that plants precisely balance both the circadian autonomy of individual cellular clocks and synchronization between neighboring cells and across distal tissues and organs. This complex organization has probably evolved to optimize the specific functions of each cell type, tissue, or organ while sustaining global circadian coordination. Circadian coordination may be essential for proper regulation of growth, development, and responses to specific environmental conditions.

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剖析植物局部和系统昼夜节律通讯的复杂性

植物昼夜节律钟调节着从生长发育到新陈代谢和生理等关键生物过程的日节律和季节节律。最近的昼夜节律研究正从整株植物转向特定的细胞、组织和器官。在这篇综述中，我们总结了我们对植物昼夜节律组织的理解，重点是昼夜节律振荡器之间的交流和同步，也称为昼夜节律耦合。我们描述了细胞间耦合的不同强度，并重点介绍了支持器官间通讯的最新进展。实验和数学证据表明，植物在单个细胞时钟的昼夜节律自主性和相邻细胞之间以及远端组织和器官之间的同步性之间取得了精确的平衡。这种复杂的组织进化可能是为了优化每种细胞类型、组织或器官的特定功能，同时维持全球昼夜节律的协调。昼夜节律协调可能是适当调节生长、发育和对特定环境条件做出反应的必要条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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npj Biological Timing and Sleep

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