title: A gateway with a guard: how the endodermis regulates growth through hormone signaling.
abstract: The endodermis is a defining feature of plant roots and is most widely studied as a differentially permeable barrier limiting solute uptake from the soil into the vascular stream. Recent work has revealed that this inner cell layer is also an important signaling center for hormone-mediated control of growth. Auxin, gibberellic acid, abscisic acid and strigalactones all appear to depend on the endodermis to regulate root biology and point to this cell type as having important inter-cell layer regulatory activity, as well. In this review I discuss recent work detailing the importance of the endodermis in growth control and how this function is affected during responses to the environment.
authors.affiliation: Carnegie Institution for Science, Department of Plant Biology, Stanford, CA 94305, USA. Electronic address: dinneny@stanford.edu.
authors.forename: José R
authors.initials: JR
authors.lastname: Dinneny
mesh_terms: D000040:Abscisic Acid / Q000378:metabolism; D001692:Biological Transport; D005875:Gibberellins / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism; D008954:Models, Biological; D010937:Plant Growth Regulators / Q000378:metabolism*; D018517:Plant Roots / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D015398:Signal Transduction
chemical_list: D005875:Gibberellins; D007210:Indoleacetic Acids; D010937:Plant Growth Regulators; D000040:Abscisic Acid; C007842:gibberellic acid
keywords: Abscisic acid; Auxin; Development; Endodermis; Gibberllic acid; Root; Salt stress