Jones, Matthew and Morohashi, Kengo and Grotewold, Erich and Harmer, Stacey Lynn (2019) Arabidopsis JMJD5/JMJ30 Acts Independently of LUX ARRHYTHMO Within the Plant Circadian Clock to Enable Temperature Compensation. Frontiers in Plant Science, 10 (57). 57-. DOI https://doi.org/10.3389/fpls.2019.00057
Jones, Matthew and Morohashi, Kengo and Grotewold, Erich and Harmer, Stacey Lynn (2019) Arabidopsis JMJD5/JMJ30 Acts Independently of LUX ARRHYTHMO Within the Plant Circadian Clock to Enable Temperature Compensation. Frontiers in Plant Science, 10 (57). 57-. DOI https://doi.org/10.3389/fpls.2019.00057
Jones, Matthew and Morohashi, Kengo and Grotewold, Erich and Harmer, Stacey Lynn (2019) Arabidopsis JMJD5/JMJ30 Acts Independently of LUX ARRHYTHMO Within the Plant Circadian Clock to Enable Temperature Compensation. Frontiers in Plant Science, 10 (57). 57-. DOI https://doi.org/10.3389/fpls.2019.00057
Abstract
The circadian system ensures that plants respond appropriately to environmental change by predicting regular transitions that occur during diel cycles. In order to be most useful, the circadian system needs to be compensated against daily and seasonal changes in temperature that would otherwise alter the pace of this biological oscillator. We demonstrate that an evening-phased protein, the putative histone demethylase JMJD5, contributes to temperature compensation. JMJD5 is co-expressed with components of the Evening Complex, an agglomeration of proteins including EARLY FLOWERING3 (ELF3), ELF4, and LUX ARRHYTHYMO (LUX), which also integrates temperature changes into the molecular clockwork. One role of the Evening Complex is to regulate expression of PSEUDORESPONSE REGULATOR9 (PRR9) and PRR7, important components of the temperature compensation mechanism. Surprisingly we find that LUX, but not other Evening Complex components, is dispensable for clock function at low temperatures. Further genetic analysis suggests JMJD5 acts in a parallel pathway to LUX within the circadian system. Although an intact JMJD5 catalytic domain is required for its function within the clock, our findings suggest JMJD5 does not directly regulate H3K36 methylation at circadian loci. Such data refine our understanding of how JMDJ5 acts within the Arabidopsis circadian system.
Item Type: | Article |
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Uncontrolled Keywords: | Circadian; JMJD5; JMJ30; Arabidopsis; Temperature compensation |
Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QK Botany |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Life Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 01 Feb 2019 11:20 |
Last Modified: | 07 Aug 2024 20:39 |
URI: | http://repository.essex.ac.uk/id/eprint/23893 |
Available files
Filename: fpls-10-00057.pdf
Licence: Creative Commons: Attribution 3.0