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The circadian clock rephases during lateral root organ initiation in Arabidopsis thaliana

Vo�, Ute; Wilson, Michael H.; Kenobi, Kim; Gould, Peter D.; Robertson, Fiona C.; Peer, Wendy A.; Lucas, Mika�l; Swarup, Kamal; Casimiro, Ilda; Holman, Tara J.; Wells, Darren M.; P�ret, Benjamin; Goh, Tatsuaki; Fukaki, Hidehiro; Hodgman, T. Charlie; Laplaze, Laurent; Halliday, Karen J.; Ljung, Karin; Murphy, Angus S.; Hall, Anthony J.; Webb, Alex A. R.; Bennett, Malcolm J.

Authors

UTE VOSS ute.voss@nottingham.ac.uk
Assistant Professor

Kim Kenobi

Peter D. Gould

Fiona C. Robertson

Wendy A. Peer

Mika�l Lucas

Kamal Swarup

Ilda Casimiro

Tara J. Holman

DARREN WELLS DARREN.WELLS@NOTTINGHAM.AC.UK
Principal Research Fellow

Benjamin P�ret

Tatsuaki Goh

Hidehiro Fukaki

T. Charlie Hodgman

Laurent Laplaze

Karen J. Halliday

Karin Ljung

Angus S. Murphy

Anthony J. Hall

Alex A. R. Webb



Abstract

The endogenous circadian clock enables organisms to adapt their growth and development to environmental changes. Here we describe how the circadian clock is employed to coordinate responses to the key signal auxin during lateral root (LR) emergence. In the model plant, Arabidopsis thaliana, LRs originate from a group of stem cells deep within the root, necessitating that new organs emerge through overlying root tissues. We report that the circadian clock is rephased during LR development. Metabolite and transcript profiling revealed that the circadian clock controls the levels of auxin and auxin-related genes including the auxin response repressor IAA14 and auxin oxidase AtDAO2. Plants lacking or overexpressing core clock components exhibit LR emergence defects. We conclude that the circadian clock acts to gate auxin signalling during LR development to facilitate organ emergence.

Citation

Voß, U., Wilson, M. H., Kenobi, K., Gould, P. D., Robertson, F. C., Peer, W. A., …Bennett, M. J. (2015). The circadian clock rephases during lateral root organ initiation in Arabidopsis thaliana. Nature Communications, 6(1), Article 7641. https://doi.org/10.1038/ncomms8641

Journal Article Type Article
Acceptance Date May 27, 2015
Online Publication Date Jul 6, 2015
Publication Date Jul 6, 2015
Deposit Date Mar 30, 2017
Publicly Available Date Mar 29, 2024
Journal Nature Communications
Electronic ISSN 2041-1723
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 6
Issue 1
Article Number 7641
DOI https://doi.org/10.1038/ncomms8641
Public URL https://nottingham-repository.worktribe.com/output/757576
Publisher URL http://www.nature.com/articles/ncomms8641

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