Molecular regulators of phosphate homeostasis in plants
Molecular regulators of phosphate homeostasis in plants
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DOI：
10.1093/jxb/ern303
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发表时间：
2009-04-01
影响因子：
6.9
通讯作者：
Chiou, Tzyy-Jen
中科院分区：
文献类型：
--
作者：
Lin, Wei-Yi;Lin, Shu-I;Chiou, Tzyy-Jen
适当的细胞磷酸盐(PI)浓度是必需的生理生化过程所必需的。为了维持细胞内PI的动态平衡，植物已经发展出一系列的适应性反应，以促进外部PI的获取，限制PI的消耗，并在PI供应不足的情况下调节内部PI的循环。在过去的十年里，在分子水平上理解这种调控方面已经取得了重大进展。在这篇综述中，重点介绍了调节细胞内PI浓度的分子调节剂。调节子的引入和组织是按照它们最初的鉴定程序，通过突变筛选的正向遗传方法或通过反向遗传分析来进行的。这些基因参与PI的吸收、分配或再动员，或者是上游调节因子，如转录因子或信号分子。在未来，当前知识的整合和新技术的探索有望为维持PI稳态的分子机制提供新的见解。
An appropriate cellular phosphate (Pi) concentration is indispensable for essential physiological and biochemical processes. To maintain cellular Pi homeostasis, plants have developed a series of adaptive responses to facilitate external Pi acquisition and to limit Pi consumption and to adjust Pi recycling internally when the Pi supply is inadequate. Over the past decade, significant progress has been made toward understanding such regulation at the molecular level. In this review, the focus is on the molecular regulators that mediate cellular Pi concentrations. The regulators are introduced and organized according to their original identification procedures, by the forward genetic approach of mutant screening or by reverse genetic analysis. These genes are involved in Pi uptake, allocation or remobilization or are upstream regulators, such as transcriptional factors or signalling molecules. In the future, integration of current knowledge and exploration of new technology is expected to offer new insights into molecular mechanisms that maintain Pi homeostasis.