1. Arabidopsis lateral root development: an emerging story
- Author
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Tom Beeckman, Bert De Rybel, Ranjan Swarup, Benjamin Péret, Ilda Casimiro, Eva Benková, Laurent Laplaze, Malcolm J. Bennett, Centre for Plant Integrative Biology [Nothingham] (CPIB), University of Nottingham, UK (UON), Department of Systems Biology, VIB, Universiteit Gent = Ghent University [Belgium] (UGENT), Universidad de Extremadura (UEX), Flanders Institute for Biotechnology, Universiteit Gent = Ghent University [Belgium] (UGENT)-Department of Plant Systems Biology, Diversité, adaptation, développement des plantes (UMR DIADE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Center for Plant Systems Biology (PSB Center), Vlaams Instituut voor Biotechnologie [Ghent, Belgique] (VIB), Universiteit Gent = Ghent University (UGENT), Universidad de Extremadura - University of Extremadura (UEX), Universiteit Gent = Ghent University (UGENT)-Department of Plant Systems Biology, and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])
- Subjects
MESH: Signal Transduction ,0106 biological sciences ,MESH: Indoleacetic Acids ,response factors ,box ,Arabidopsis ,MESH: Plant Roots ,system architecture ,protein tir1 ,Plant Science ,Root system ,of-function mutation ,Biology ,01 natural sciences ,Plant Roots ,03 medical and health sciences ,MESH: Xylem ,founder cells ,Auxin ,Xylem ,Botany ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,Arabidopsis thaliana ,thaliana ,MESH: Arabidopsis ,Lateral root formation ,030304 developmental biology ,Body Patterning ,dependent auxin gradients ,chemistry.chemical_classification ,0303 health sciences ,Indoleacetic Acids ,apical-basal axis ,fungi ,Lateral root ,aux/iaa proteins ,food and beverages ,15. Life on land ,biology.organism_classification ,Cell biology ,cell-cycle ,chemistry ,Plant morphology ,Plant hormone ,MESH: Body Patterning ,010606 plant biology & botany ,Signal Transduction - Abstract
International audience; Lateral root formation is a major determinant of root systems architecture. The degree of root branching impacts the efficiency of water uptake, acquisition of nutrients and anchorage by plants. Understanding the regulation of lateral root development is therefore of vital agronomic importance. The molecular and cellular basis of lateral root formation has been most extensively studied in the plant model Arabidopsis thaliana (Arabidopsis). Significant progress has recently been made in identifying many new Arabidopsis genes that regulate lateral root initiation, patterning and emergence processes. We review how these studies have revealed that the plant hormone auxin represents a common signal that integrates these distinct yet interconnected developmental processes.
- Published
- 2009
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