Department of Computer Science, Institute of Mathematics and Statistics, University of São Paulo, São Paulo, SP 05508-090, Brazil.
Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090, Brazil.
Curr Opin Cell Biol. 2022 Aug;77:102113. doi: 10.1016/j.ceb.2022.102113. Epub 2022 Jul 6.
Physiological oscillations (or rhythms) pervade all spatiotemporal scales of biological organization, either because they perform critical functions or simply because they can arise spontaneously and may be difficult to prevent. Regardless of the case, they reflect regulatory relationships between control points of a given system and offer insights as read-outs of the concerted regulation of a myriad of biological processes. Here we review recent advances in understanding ultradian oscillations (period < 24h) in plant cells, with a special focus on single-cell oscillations. Ion channels are at the center stage due to their involvement in electrical/excitabile phenomena associated with oscillations and cell-cell communication. We highlight the importance of quantitative approaches to measure oscillations in appropriate physiological conditions, which are essential strategies to deal with the complexity of biological rhythms. Future development of optogenetics techniques in plants will further boost research on the role of membrane potential in oscillations and waves across multiple cell types.
生理振荡（或节律）普遍存在于生物组织的所有时空尺度，要么是因为它们执行关键功能，要么仅仅是因为它们可能自发出现，而且可能难以预防。无论哪种情况，它们反映了给定系统的控制点之间的调节关系，并提供了对众多生物过程协同调节的解读。在这里，我们回顾了最近在理解植物细胞中超频振荡（周期<24 小时）方面的进展，特别关注单细胞振荡。离子通道处于中心舞台，因为它们参与与振荡和细胞间通讯相关的电/兴奋现象。我们强调了在适当的生理条件下测量振荡的定量方法的重要性，这是应对生物节律复杂性的必要策略。植物中光遗传学技术的未来发展将进一步推动关于膜电位在多个细胞类型中的振荡和波中的作用的研究。
