气候变化领域集成服务门户(CCPortal): Superoxide is promoted by sucrose and affects amplitude of circadian rhythms in the evening

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DOI	10.1073/pnas.2020646118
	Superoxide is promoted by sucrose and affects amplitude of circadian rhythms in the evening
	Román Á.; Li X.; Deng D.; Davey J.W.; James S.; Graham I.A.; Haydon M.J.
发表日期	2021
ISSN	00278424
卷号	118 期号:10
英文摘要	Plants must coordinate photosynthetic metabolism with the daily environment and adapt rhythmic physiology and development to match carbon availability. Circadian clocks drive biological rhythms which adjust to environmental cues. Products of photosynthetic metabolism, including sugars and reactive oxygen species (ROS), are closely associated with the plant circadian clock, and sugars have been shown to provide metabolic feedback to the circadian oscillator. Here, we report a comprehensive sugar-regulated transcriptome of Arabidopsis and identify genes associated with redox and ROS processes as a prominent feature of the transcriptional response. We show that sucrose increases levels of superoxide (O2–), which is required for transcriptional and growth responses to sugar. We identify circadian rhythms of O2–-regulated transcripts which are phased around dusk and find that O2– is required for sucrose to promote expression of TIMING OF CAB1 (TOC1) in the evening. Our data reveal a role for O2– as a metabolic signal affecting transcriptional control of the circadian oscillator in Arabidopsis. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Circadian; Redox; ROS; Sugar; Superoxide
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180317
作者单位	School of BioSciences, The University of Melbourne, Parkville, VIC 3010, Australia; Department of Biology, University of York, York, YO10 5DD, United Kingdom
推荐引用方式 GB/T 7714	Román Á.,Li X.,Deng D.,et al. Superoxide is promoted by sucrose and affects amplitude of circadian rhythms in the evening[J],2021,118(10).
APA	Román Á..,Li X..,Deng D..,Davey J.W..,James S..,...&Haydon M.J..(2021).Superoxide is promoted by sucrose and affects amplitude of circadian rhythms in the evening.Proceedings of the National Academy of Sciences of the United States of America,118(10).
MLA	Román Á.,et al."Superoxide is promoted by sucrose and affects amplitude of circadian rhythms in the evening".Proceedings of the National Academy of Sciences of the United States of America 118.10(2021).