GIGANTEA - an emerging story.
GIGANTEA - an emerging story.
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DOI：
10.3389/fpls.2015.00008
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发表时间：
2015
影响因子：
5.6
通讯作者：
Panigrahi KC
中科院分区：
文献类型：
--
作者：
Mishra P;Panigrahi KC
GIGANTEA（GI）是植物特有的核蛋白，在多种生理过程中发挥作用，如开花时间调节、光信号传导、下胚轴伸长、昼夜节律控制、蔗糖信号传导、淀粉积累、叶绿素积累、蒸腾、除草剂耐受性、耐寒性、耐旱性和miRNA加工。自发现至今已有50年，但GI的生化功能及其不同结构域仍不清楚。尽管已知GI转录物和GI蛋白都是时钟控制的，但在分子水平上对其丰度和功能的调节仍然是一些未探索的深入研究领域。由于胃肠道有许多重要的多效性功能，如上所述，分散在文献中，这是值得的，大约是时候封装在一个简洁的审查可用的信息。因此，在这篇综述中，我们试图总结（i）GI可能在植物发育的微调中发挥的各种相互关联的作用，以及（ii）已知的GI突变有助于理解其在不同生理过程中的作用。
GIGANTEA (GI) is a plant specific nuclear protein and functions in diverse physiological processes such as flowering time regulation, light signaling, hypocotyl elongation, control of circadian rhythm, sucrose signaling, starch accumulation, chlorophyll accumulation, transpiration, herbicide tolerance, cold tolerance, drought tolerance, and miRNA processing. It has been five decades since its discovery but the biochemical function of GI and its different domains are still unclear. Although it is known that both GI transcript and GI protein are clock controlled, the regulation of its abundance and functions at the molecular level are still some of the unexplored areas of intensive research. Since GI has many important pleotropic functions as described above scattered through literature, it is worthwhile and about time to encapsulate the available information in a concise review. Therefore, in this review, we are making an attempt to summarize (i) the various interconnected roles that GI possibly plays in the fine-tuning of plant development, and (ii) the known mutations of GI that have been instrumental in understanding its role in distinct physiological processes.
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