In SYNC: the ins and outs of circadian oscillations in calcium.
In SYNC: the ins and outs of circadian oscillations in calcium.
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同步：钙昼夜节律波动的来龙去脉。
DOI：
10.1126/stke.3902007pe32
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Kay,SteveA
中科院分区：
文献类型：
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作者：
Imaizumi,Takato;Schroeder,JulianI;Kay,SteveA
许多刺激诱导细胞内游离钙离子（[Ca 2 +]i）浓度的短期增加，这些离子编码有关不同生理和发育事件的信号传导信息。在植物和动物中也发现了持续一整天的缓慢胞质Ca 2+振荡;人们认为这些每日Ca 2+振荡可能编码了生物钟信号信息。最近的一项研究集中在表征的细胞外Ca 2+感应受体（CAS）提供了深入了解的分子机制，其中每天的Ca 2+振荡在植物中产生。我们总结的主要研究结果有关每日振荡的细胞质Ca 2+浓度在植物和动物，并讨论假设的生物作用的昼夜节律钟调节的生理在植物中。
Many stimuli induce short-term increases in the cytosolic concentration of free calcium ions ([Ca2+]i) that encode signaling information about diverse physiological and developmental events. Slow cytosolic Ca2+oscillations that span an entire day have also been discovered in both plants and animals; it is thought that these daily Ca2+oscillations may encode circadian clock signaling information. A recent study focusing on the characterization of the extracellular Ca2+-sensing receptor (CAS) has provided insight into the molecular mechanisms by which the daily Ca2+oscillation in plants is generated. We summarize the major findings regarding daily oscillations of cytosolic Ca2+concentrations in plants and animals, and discuss hypothetical biological roles for the circadian clock–regulated physiology in plants.