title: The Whats, the Wheres and the Hows of strigolactone action in the roots.
abstract: Strigolactones control various aspects of plant development, including root architecture. Here, we review how strigolactones act in the root and survey the strigolactone specificity of signaling components that affect root development. Strigolactones are a group of secondary metabolites produced in plants that have been assigned multiple roles, of which the most recent is hormonal activity. Over the last decade, these compounds have been shown to regulate various aspects of plant development, such as shoot branching and leaf senescence, but a growing body of literature suggests that these hormones play an equally important role in the root. In this review, we present all known root phenotypes linked to strigolactones. We examine the expression and presence of the main players in biosynthesis and signaling of these hormones and bring together the available information that allows us to explain how strigolactones act to modulate the root system architecture.
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium.|Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.
authors.forename: Cedrick
authors.initials: C
authors.lastname: Matthys
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium.|Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.|Department of Medical Protein Research, VIB, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.|Department of Biochemistry, Ghent University, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.
authors.forename: Alan
authors.initials: A
authors.lastname: Walton
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium.|Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.
authors.forename: Sylwia
authors.initials: S
authors.lastname: Struk
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium.|Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.|Department of Medical Protein Research, VIB, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.|Department of Biochemistry, Ghent University, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Stes
authors.affiliation: Institut Jean-Pierre Bourgin, Unité Mixte de Recherche 1318, Institut National de la Recherche Agronomique-AgroParisTech, 78026, Versailles Cedex, France.|Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Unité Propre de Recherche 2301, Centre National de la Recherche Scientifique, 91198, Gif-Sur-Yvette, France.
authors.forename: François-Didier
authors.initials: FD
authors.lastname: Boyer
authors.affiliation: Department of Medical Protein Research, VIB, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.|Department of Biochemistry, Ghent University, Albert Baertsoenkaai 3, 9000, Ghent, Belgium.
authors.forename: Kris
authors.initials: K
authors.lastname: Gevaert
authors.affiliation: Department of Plant Systems Biology, VIB, Technologiepark 927, 9052, Ghent, Belgium. sofie.goormachtig@psb.vib-ugent.be.|Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052, Ghent, Belgium. sofie.goormachtig@psb.vib-ugent.be.
authors.forename: Sofie
authors.initials: S
authors.lastname: Goormachtig
mesh_terms: D017360:Arabidopsis / Q000254:growth & development; D001692:Biological Transport; D007783:Lactones / Q000032:analysis / Q000378:metabolism*; D010937:Plant Growth Regulators / Q000032:analysis / Q000378:metabolism / Q000502:physiology*; D018517:Plant Roots / Q000254:growth & development / Q000378:metabolism*; D015398:Signal Transduction
chemical_list: D007783:Lactones; D010937:Plant Growth Regulators
keywords: Root system architecture; Strigolactone; Strigolactone-related compounds; rac-GR24