Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate

Jitender Giri; Rahul Bhosale; Guoqiang Huang; Bipin K. Pandey; Helen Parker; Susan Zappala; Jing Yang; Anne Dievart; Charlotte Bureau; Karin Ljung; Adam Price; Terry Rose; Antoine Larrieu; Stefan Mairhofer; Craig J. Sturrock; Philip White; Lionel Dupuy; Malcolm Hawkesford; Christophe Perin; Wanqi Liang; Benjamin Peret; Charlie T. Hodgman; Jonathan Lynch; Matthias Wissuwa; Dabing Zhang; Tony Pridmore; Sacha J. Mooney; Emmanuel Guiderdoni; Ranjan Swarup; Malcolm J. Bennett; Sveriges lantbruksuniversitet

doi:10.1038/s41467-018-03850-4

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Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate

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Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate

Jitender Giri, Rahul Bhosale, Guoqiang Huang, Bipin K. Pandey, Helen Parker, Susan Zappala, Jing Yang, Anne Dievart, Charlotte Bureau, Karin Ljung, …

Nature communications, Vol.9(1), pp.1408-7

12/04/2018

DOI: https://doi.org/10.1038/s41467-018-03850-4

PMID: 29650967

Résumé

Multidisciplinary Sciences

Science & Technology

Science & Technology - Other Topics

Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort to improve rice P acquisition efficiency. We show by X-ray microCT imaging that root angle is altered in the osaux1 mutant, causing preferential foraging in the top soil where P normally accumulates, yet surprisingly, P acquisition efficiency does not improve. Through closer investigation, we reveal that OsAUX1 also promotes root hair elongation in response to P limitation. Reporter studies reveal that auxin response increases in the root hair zone in low P environments. We demonstrate that OsAUX1 functions to mobilize auxin from the root apex to the differentiation zone where this signal promotes hair elongation when roots encounter low external P. We conclude that auxin and OsAUX1 play key roles in promoting root foraging for P in rice.

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Titre: Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate
Créateurs - sans rôle: Jitender Giri - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Rahul Bhosale - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Guoqiang Huang - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Bipin K. Pandey - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Helen Parker - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Susan Zappala - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Jing Yang - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Anne Dievart - CIRAD, UMR AGAP, F-34398 Montpellier 5, France
Charlotte Bureau - CIRAD, UMR AGAP, F-34398 Montpellier 5, France
Karin Ljung - Swedish Univ Agr Sci, Dept Forest Genet & Plant Physiol, Umea Plant Sci Ctr, SE-90183 Umea, Sweden
Adam Price - Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen AB24 2TZ, Scotland
Terry Rose - Japan Int Ctr Agr Sci JIRCAS, 1-1 Ohwashi, Tsukuba, Ibaraki 3058686, Japan
Antoine Larrieu - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Stefan Mairhofer - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Craig J. Sturrock - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Philip White - James Hutton Inst, Ecol Sci, Dundee DD2 5DA, Scotland
Lionel Dupuy - James Hutton Inst, Ecol Sci, Dundee DD2 5DA, Scotland
Malcolm Hawkesford - Rothamsted Res, Harpenden AL5 2JQ, Herts, England
Christophe Perin - CIRAD, UMR AGAP, F-34398 Montpellier 5, France
Wanqi Liang - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Benjamin Peret - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Charlie T. Hodgman - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Jonathan Lynch - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Matthias Wissuwa
Dabing Zhang - Shanghai Jiao Tong Univ, State Key Lab Hybrid Rice, Shanghai, Peoples R China
Tony Pridmore - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Sacha J. Mooney - University of Nottingham
Emmanuel Guiderdoni - CIRAD, UMR AGAP, F-34398 Montpellier 5, France
Ranjan Swarup - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Malcolm J. Bennett - Univ Nottingham, Sch Biosci, CPIB, Nottingham LE12 5RD, England
Sveriges lantbruksuniversitet
Détails de publication: Nature communications, Vol.9(1), pp.1408-7
Éditeur: NATURE PORTFOLIO
Nombre de pages: 7
Note de subvention: P7/29 / Belgian Science Policy Office; Belgian Federal Science Policy Office Swedish Research Council (V.R.); Swedish Research Council Interuniversity Attraction Poles Program; Belgian Federal Science Policy Office Swedish Governmental Agency for Innovation Systems (VINNOVA); Vinnova University of Nottingham Future Food Beacon of Excellence Nottingham Research and PhD+ fellowship schemes BB/R013748/1; BB/N013697/1; BB/G023972/1; BBS/E/C/000I0220; BB/P010520/1; BB/L026848/1 / BBSRC; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) NF140287; WM130021 / Royal Society; Royal Society UK 228144076 / British Council Newton Bhabha BB/G023972/1; BB/R013748/1; BB/L026848/1; BB/M018431/1; BB/PO16855/1; BB/M001806/1; BB/P010520/1 / Biotechnology and Biological Sciences Research Council; UK Research & Innovation (UKRI); Biotechnology and Biological Sciences Research Council (BBSRC) RPG-2016-409 / Leverhulme Trust
Identifiants: 99141250909311
Unité académique: Institut Amélioration Génétique & Adaptation des Plantes méditerranéennes & tropicales-AGAP; Institut des Sciences des Plantes de Montpellier - IPSiM
Langue: English
Type de ressource: Journal article