Ricardo F. H. Giehl
A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate
Giehl, Ricardo F. H.; Bhosale, Rahul; Giri, Jitender; Pandey, Bipin K.; Giehl, Ricardo F.H.; Hartmann, Anja; Traini, Richard; Truskina, Jekaterina; Leftley, Nicola; Hanlon, Meredith; Swarup, Kamal; Rashed, Afaf; Voß, Ute; Alonso, Jose; Stepanova, Anna; Yun, Jeonga; Ljung, Karin; Brown, Kathleen M.; Lynch, Jonathan P.; Dolan, Liam; Vernoux, Teva; Bishopp, Anthony; Wells, Darren; von Wirén, Nicolaus; Bennett, Malcolm J.; Swarup, Ranjan
Authors
Dr RAHUL BHOSALE RAHUL.BHOSALE@NOTTINGHAM.AC.UK
Assistant Professor
Jitender Giri
Bipin K. Pandey
Ricardo F.H. Giehl
Anja Hartmann
Richard Traini
Jekaterina Truskina
NICKY LEFTLEY Nicky.Leftley@nottingham.ac.uk
Technical Specialist
Meredith Hanlon
Kamal Swarup
Afaf Rashed
UTE VOSS ute.voss@nottingham.ac.uk
Assistant Professor
Jose Alonso
Anna Stepanova
Jeonga Yun
Karin Ljung
Kathleen M. Brown
Jonathan P. Lynch
Liam Dolan
Teva Vernoux
ANTHONY BISHOPP Anthony.Bishopp@nottingham.ac.uk
Professor of Plant Development Biology
DARREN WELLS DARREN.WELLS@NOTTINGHAM.AC.UK
Principal Research Fellow
Nicolaus von Wirén
MALCOLM BENNETT malcolm.bennett@nottingham.ac.uk
Professor of Plant Science
RANJAN SWARUP RANJAN.SWARUP@NOTTINGHAM.AC.UK
Associate Professor
Abstract
Phosphate (P) is an essential macronutrient for plant growth. Roots employ adaptive mechanisms to forage for P in soil. Root hair elongation is particularly important since P is immobile. Here we report that auxin plays a critical role promoting root hair growth in Arabidopsis in response to low external P. Mutants disrupting auxin synthesis (taa1) and transport (aux1) attenuate the low P root hair response. Conversely, targeting AUX1 expression in lateral root cap and epidermal cells rescues this low P response in aux1. Hence auxin transport from the root apex to differentiation zone promotes auxin-dependent hair response to low P. Low external P results in induction of root hair expressed auxin-inducible transcription factors ARF19, RSL2, and RSL4. Mutants lacking these genes disrupt the low P root hair response. We conclude auxin synthesis, transport and response pathway components play critical roles regulating this low P root adaptive response.
Citation
Giehl, R. F. H., Bhosale, R., Giri, J., Pandey, B. K., Giehl, R. F., Hartmann, A., …Swarup, R. (2018). A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate. Nature Communications, 9(1), 1-9. https://doi.org/10.1038/s41467-018-03851-3
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 16, 2018 |
Online Publication Date | Apr 12, 2018 |
Publication Date | Dec 1, 2018 |
Deposit Date | Apr 12, 2018 |
Publicly Available Date | Apr 12, 2018 |
Journal | Nature Communications |
Electronic ISSN | 2041-1723 |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 9 |
Issue | 1 |
Article Number | 1409 |
Pages | 1-9 |
DOI | https://doi.org/10.1038/s41467-018-03851-3 |
Keywords | General Biochemistry, Genetics and Molecular Biology; General Physics and Astronomy; General Chemistry |
Public URL | https://nottingham-repository.worktribe.com/output/924739 |
Publisher URL | https://www.nature.com/articles/s41467-018-03851-3 |
Additional Information | Received: 9 January 2017; Accepted: 16 March 2018; First Online: 12 April 2018; Change Date: 2 May 2018; Change Type: Correction; Change Details: The original version of this Article omitted the following from the Acknowledgements: ‘We also thank DBT-CREST BT/HRD/03/01/2002.’ This has been corrected in both the PDF and HTML versions of the Article.; : The authors declare no competing interests. |
Contract Date | Apr 12, 2018 |
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https://creativecommons.org/licenses/by/4.0/
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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