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首页> 外文期刊>Journal of Experimental Botany >Interactions between plant circadian clocks and solute transport
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Interactions between plant circadian clocks and solute transport

机译：植物生物钟与溶质运输之间的相互作用

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摘要

The Earth's rotation and its orbit around the Sun leads to continual changes in the environment. Many organisms, including plants and animals, have evolved circadian clocks that anticipate these changes in light, temperature, and seasons in order to optimize growth and physiology. Circadian timing is thought to derive from a molecular oscillator that is present in every plant cell. A central aspect of the circadian oscillator is the presence of transcription translation loops (TTLs) that provide negative feedback to generate circadian rhythms. This review examines the evidence that the 24 h circadian clocks of plants regulate the fluxes of solutes and how changes in solute concentrations can also provide feedback to modulate the behaviour of the molecular oscillator. It highlights recent advances that demonstrate interactions between components of TTLs and regulation of solute concentration and transport. How rhythmic control of water fluxes, ions such as K+, metabolic solutes such as sucrose, micronutrients, and signalling molecules, including Ca2+, might contribute to optimizing the physiology of the plant is discussed.
机译：地球的自转及其绕太阳的轨道导致环境不断变化。许多生物，包括植物和动物，都已经进化了昼夜节律钟，以预测光线，温度和季节的这些变化，从而优化生长和生理状况。昼夜节律被认为是来自每个植物细胞中都存在的分子振荡器。昼夜节律振荡器的中心方面是转录翻译环（TTL）的存在，它们提供负反馈以产生昼夜节律。这篇综述检查了植物24小时昼夜节律调节溶质通量的证据，以及溶质浓度的变化如何还可以提供反馈以调节分子振荡器的行为。它强调了最近的进展，这些进展表明了TTL的成分之间的相互作用以及溶质浓度和转运的调节。节律性地控制水通量，离子（例如K + ），代谢溶质（例如蔗糖），微量营养素和包括Ca 2 + 在内的信号分子，可能有助于优化生理学讨论了植物的种类。

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