Mg deficiency interacts with the circadian clock and phytochromes pathways in Arabidopsis,Annals of Applied Biology

当前位置： X-MOL 学术 › Ann. Appl. Biol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Mg deficiency interacts with the circadian clock and phytochromes pathways in Arabidopsis
Annals of Applied Biology ( IF 2.2 ) Pub Date : 2020-10-20 , DOI: 10.1111/aab.12659
Quentin Rivière ₁ , Qiying Xiao _{1,

2} , Annelie Gutsch ₁ , Matthieu Defrance ₃ , Alex A. R. Webb ₄ , Nathalie Verbruggen ₁

Affiliation

Little is known about the relationship between nutrition and the circadian clock in plants. The first global transcriptomic study in plants of the response to magnesium deficiency (–Mg) revealed that the circadian clock was affected in the Arabidopsis thaliana model species. Interactions between the circadian clock and Mg status were here investigated in the light of recent knowledge. We highlight the wide disturbances caused by –Mg within the central oscillator and, reciprocally, the probable pervasive influence of the circadian clock on the response to –Mg. We provide evidence that light signalling pathways are likely to be involved in the input of Mg status to the circadian oscillator and that they interact with the circadian clock to coregulate an important part of the transcriptomic response. We further studied PIF3 LIKE 1 (PIL1) because it strongly and early responded, before the core genes of the circadian oscillator, and was a representative regulator of light signalling that interacts with the circadian oscillator. Furthermore, the far‐red light‐responsive genes, which are related to PIL1, were more enriched among the –Mg‐deregulated genes than those responding to red, blue and intense lights. Finally, pil1 mutants had an altered response to –Mg notably by losing the upregulation of PSEUDO‐RESPONSE REGULATOR 9, a core circadian oscillator. In short, we have further characterised the interactions between the Mg status and the circadian clock and identified the involvement of light signalling pathways in the response to Mg status. In particular, we have illustrated the role of a light‐signalling component in the regulation of the circadian oscillator and physiological processes during Mg starvation.

中文翻译：

镁缺乏与拟南芥中的生物钟和植物色素途径相互作用

营养与植物生物钟之间的关系知之甚少。首次对植物对镁缺乏症（–Mg）的反应的全球转录组学研究表明，拟南芥中的昼夜节律时钟受到影响模型物种。根据最近的知识，在这里研究了生物钟和镁状态之间的相互作用。我们重点介绍了由–Mg在中央振荡器内引起的广泛扰动，以及相应地，昼夜节律时钟对–Mg响应的可能普遍影响。我们提供的证据表明，光信号通路可能参与了向生物钟振荡器输入的镁状态，并且它们与生物钟相互作用以整合转录组反应的重要部分。我们进一步研究PIF3 LIKE 1（PIL1），因为它在昼夜节律振荡器的核心基因之前反应强烈且早，并且是与昼夜节律振荡器相互作用的光信号的代表性调节剂。此外，与PIL1相关的远红光响应基因比起对红，蓝和强光响应的基因更丰富。最后，pil1突变体对–Mg的反应发生了变化，特别是由于失去了PSEUDO-RESPONSE REGULATOR 9的上调，一个昼夜节律振荡器。简而言之，我们进一步表征了镁状态和昼夜节律时钟之间的相互作用，并确定了光信号通路参与了对镁状态的响应。特别是，我们已经说明了光信号成分在镁饥饿期间昼夜节律振荡器和生理过程的调节中的作用。

更新日期：2020-10-20

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11