Circadian rhythms in plants: a millennial view
Circadian rhythms in plants: a millennial view
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DOI：
10.1034/j.1399-3054.2000.100401.x
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发表时间：
2000-08
影响因子：
6.4
通讯作者：
C. R. McClung
中科院分区：
文献类型：
--
作者：
C. R. McClung
昼夜节律是内源性节律，周期约为24小时。这些节奏在任何给定的生物体和不同的类群中都是普遍存在的。由于遗传和分子生物学研究，主要是在一个子集的模式生物，已经开始确定昼夜节律系统的组成部分，有乐观的是，我们将很快实现一个详细的昼夜节律定时机制的分子理解。虽然植物提供了许多有节奏的输出的例子，我们的理解光感受器的昼夜节律输入途径是先进的，植物落后于其他群体的生物体在中央昼夜节律振荡器的组件的识别。然而，现在有许多有希望的候选植物昼夜节律钟的组成部分，似乎我们很快就会知道植物中央振荡器的细节。此外，越来越多的证据表明，植物和其他生物体在不同的组织中，很可能在单个细胞中，都有多个生物钟。这提供了一个意想不到的复杂性水平，这些多个振荡器之间的相互作用的潜力。
Circadian rhythms are endogenous rhythms with periods of approximately 24 h. These rhythms are widespread both within any given organism and among diverse taxa. As genetic and molecular biological studies, primarily in a subset of model organisms, have begun to identify the components of circadian systems, there is optimism that we will soon achieve a detailed molecular understanding of circadian timing mechanisms. Although plants have provided many examples of rhythmic outputs, and our understanding of photoreceptors of circadian input pathways is well-advanced, plants have lagged behind other groups of organisms in the identification of components of the central circadian oscillator. However, there are now a number of promising candidates for components of plant circadian clocks, and it seems probable that we will soon know the details of a plant central oscillator. Moreover, there is also accumulating evidence that plants and other organisms house multiple circadian clocks, both in different tissues and, quite probably, within individual cells. This provides an unanticipated level of complexity with the potential for interaction among these multiple oscillators.