The auxin influx carrier LAX3 promotes lateral root emergence.

Kamal Swarup; Eva Benková; Ranjan Swarup; Ilda Casimiro; Benjamin Péret; Yaodong Yang; Geraint Parry; Erik Nielsen; Ive de Smet; Steffen Vanneste; Mitch P Levesque; David Carrier; Nicholas James; Vanessa Calvo; Karin Ljung; Eric Kramer; Rebecca Roberts; Neil Graham; Sylvestre Marillonnet; Kanu Patel; Jonathan D G Jones; Christopher G Taylor; Daniel P Schachtman; Sean May; Goran Sandberg; Philip Benfey; Jiri Friml; Ian Kerr; Tom Beeckman; Laurent Laplaze; Malcolm J Bennett

doi:10.1038/ncb1754

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The auxin influx carrier LAX3 promotes lateral root emergence.

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The auxin influx carrier LAX3 promotes lateral root emergence.

Kamal Swarup, Eva Benková, Ranjan Swarup, Ilda Casimiro, Benjamin Péret, Yaodong Yang, Geraint Parry, Erik Nielsen, Ive de Smet, Steffen Vanneste, …

Nature Cell Biology, Vol.10(8), pp.946-54

08/2008

DOI: https://doi.org/10.1038/ncb1754

PMID: 18622388

Résumé

cultured tobacco cells

arabidopsis-thaliana

gene

initiation

organization

transport

expression

mutations

Arabidopsis

Arabidopsis Proteins

Carrier Proteins

Gene Expression Regulation, Plant

Indoleacetic Acids

Membrane Transport Proteins

Plant Growth Regulators

Plant Roots

racine

hormone végétale

Lateral roots originate deep within the parental root from a small number of founder cells at the periphery of vascular tissues and must emerge through intervening layers of tissues. We describe how the hormone auxin, which originates from the developing lateral root, acts as a local inductive signal which re-programmes adjacent cells. Auxin induces the expression of a previously uncharacterized auxin influx carrier LAX3 in cortical and epidermal cells directly overlaying new primordia. Increased LAX3 activity reinforces the auxin-dependent induction of a selection of cell-wall-remodelling enzymes, which are likely to promote cell separation in advance of developing lateral root primordia.

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Titre: The auxin influx carrier LAX3 promotes lateral root emergence.
Créateurs - sans rôle: Kamal Swarup - University of Nottingham
Eva Benková - Max Planck Institute for Developmental Biology
Ranjan Swarup - University of Nottingham
Ilda Casimiro - Universidad de Extremadura
Benjamin Péret - Institut National de la Recherche Agronomique
Yaodong Yang - Donald Danforth Plant Science Center
Geraint Parry - University of Nottingham
Erik Nielsen - Donald Danforth Plant Science Center
Ive de Smet - University of Tübingen
Steffen Vanneste - VIB-UGent Center for Plant Systems Biology
Mitch P Levesque - Max Planck Institute for Developmental Biology
David Carrier - University of Nottingham
Nicholas James - University of Nottingham
Vanessa Calvo - Universidad de Extremadura
Karin Ljung - Umeå Plant Science Centre
Eric Kramer - Bard College at Simon's Rock
Rebecca Roberts - University of Nottingham
Neil Graham - University of Nottingham
Sylvestre Marillonnet - Sainsbury Laboratory
Kanu Patel - Sainsbury Laboratory
Jonathan D G Jones - John Innes Centre
Christopher G Taylor - Donald Danforth Plant Science Center
Daniel P Schachtman - Donald Danforth Plant Science Center
Sean May - University of Nottingham
Goran Sandberg - Umeå Plant Science Centre
Philip Benfey - Duke University
Jiri Friml - Max Planck Institute for Developmental Biology
Ian Kerr - University of Nottingham
Tom Beeckman - Ghent University
Laurent Laplaze - Université de Montpellier, Diversité, Adaptation et Développement des plantes - DIADE
Malcolm J Bennett - University of Nottingham
Détails de publication: Nature Cell Biology, Vol.10(8), pp.946-54
Identifiants: 99151262909311
Unité académique: Diversité, Adaptation et Développement des plantes - DIADE
Langue: English
Type de ressource: Journal article
Champs locaux: cea-00848585