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

Voß, Ute; Wilson, Michael H.; Kenobi, Kim; Gould, Peter D.; Robertson, Fiona C.; Peer, Wendy A.; Lucas, Mikaël; Swarup, Kamal; Casimiro, Ilda; Holman, Tara J.; Wells, Darren M.; Péret, 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

MICHAEL WILSON MICHAEL.WILSON@NOTTINGHAM.AC.UK
Future Food Beacon:Technologist in Bioinformatics/Computational Biology

Kim Kenobi

Peter D. Gould

Fiona C. Robertson

Wendy A. Peer

Mikaël Lucas

Kamal Swarup

Ilda Casimiro

Tara J. Holman

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

Benjamin Péret

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.

Journal Article Type Article
Publication Date Jul 6, 2015
Journal Nature Communications
Electronic ISSN 2041-1723
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 6
Issue 1
Article Number 7641
APA6 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), https://doi.org/10.1038/ncomms8641
DOI https://doi.org/10.1038/ncomms8641
Publisher URL http://www.nature.com/articles/ncomms8641
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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