A mobile ELF4 delivers circadian temperature information from shoots to roots
Chen, Wei Wei (Centre de Recerca en Agrigenòmica)
Takahashi, Nozomu (Centre de Recerca en Agrigenòmica)
Hirata, Yoshito (The University of Tokyo. Mathematics and Informatics Center)
Ronald, James (University of York. Department of Biology)
Porco, Silvana (University of Southern California. Keck School of Medicine)
Davis, Seth J. (University of York. Department of Biology)
Nusinow, Dmitri A. (Donald Danforth Plant Science Center)
Kay, Steve A. (University of Southern California. Keck School of Medicine)
Mas, Paloma (Centre de Recerca en Agrigenòmica)

Date:	2020
Abstract:	The circadian clock is synchronized by environmental cues, mostly by light and temperature. Explaining how the plant circadian clock responds to temperature oscillations is crucial to understanding plant responsiveness to the environment. Here, we found a prevalent temperature-dependent function of the Arabidopsis clock component EARLY FLOWERING 4 (ELF4) in the root clock. Although the clocks in roots are able to run in the absence of shoots, micrografting assays and mathematical analyses show that ELF4 moves from shoots to regulate rhythms in roots. ELF4 movement does not convey photoperiodic information, but trafficking is essential for controlling the period of the root clock in a temperature-dependent manner. Low temperatures favour ELF4 mobility, resulting in a slow-paced root clock, whereas high temperatures decrease movement, leading to a faster clock. Hence, the mobile ELF4 delivers temperature information and establishes a shoot-to-root dialogue that sets the pace of the clock in roots.
Grants:	Ministerio de Economía y Competitividad SEV-2015-0533
Note:	Extended Data and Source Data can be found at https://doi.org/10.1038/s41477-020-0634-2
Note:	Ajuts: the Mas laboratory is funded by the FEDER/Spanish Ministry of Economy and Competitiveness, the Ramon Areces Foundation and the Generalitat de Catalunya (AGAUR). The P.M. laboratory also acknowledges financial support from the CERCA Program, Generalitat de Catalunya and by the Spanish Ministry of Economy and Competitiveness through the Severo Ochoa Program for Centers of Excellence in R&D 2016-2019 (SEV-2015-0533).
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Plant molecular biology ; Plant sciences
Published in:	Nature plants, Vol. 6, issue 4 (April 2020) , p. 416-426, ISSN 2055-0278

DOI: 10.1038/s41477-020-0634-2
PMID: 32284549

Postprint 30 p, 4.4 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
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