Donald Danforth Plant Science Center, St. Louis, MO, USA; Division of Biology and Biomedical Sciences, Washington University in St. Louis, St. Louis, MO, USA.
Donald Danforth Plant Science Center, St. Louis, MO, USA.
Trends Plant Sci. 2021 Jul;26(7):706-719. doi: 10.1016/j.tplants.2020.12.009. Epub 2021 Jan 16.
Multicellular organisms have evolved local and long-distance signaling mechanisms to synchronize development and response to stimuli among a complex network of cells, tissues, and organs. Biological timekeeping is one such activity that is suggested to be coordinated within an organism to anticipate and respond to daily and seasonal patterns in the environment. New research into the plant clock suggests circadian rhythms are communicated between cells and across long distances. However, further clarity is required on the nature of the signaling molecules and the mechanisms underlying signal translocation. Here we summarize the roles and properties of tissue-specific circadian rhythms, discuss the evidence for local and long-distance clock communication, and evaluate the potential signaling molecules and transport mechanisms involved in this system.
多细胞生物已经进化出局部和远程信号机制，以在细胞、组织和器官的复杂网络中协调发育和对刺激的反应。生物钟就是这样一种活动，它被认为在生物体内是协调的，以预测和响应环境中的日常和季节性模式。对植物钟的新研究表明，昼夜节律在细胞之间和长距离上进行交流。然而，对于信号分子的性质和信号转导的机制还需要进一步的明确。在这里，我们总结了组织特异性昼夜节律的作用和特性，讨论了局部和远程时钟通讯的证据，并评估了该系统中涉及的潜在信号分子和运输机制。
