title: Emerging concepts in chromatin-level regulation of plant cell differentiation: timing, counting, sensing and maintaining.
abstract: Plants are characterized by a remarkable phenotypic plasticity that meets the constraints of a sessile lifestyle and the need to adjust constantly to the environment. Recent studies have begun to reveal how chromatin dynamics participate in coordinating cell proliferation and differentiation in response to developmental cues as well as environmental fluctuations. In this review, we discuss the pivotal function of chromatin-based mechanisms in cell fate acquisition and maintenance, within as well as outside meristems. In particular, we highlight the emerging role of specific epigenomic factors and chromatin pathways in timing the activity of stem cells, counting cell divisions and positioning cell fate transitions by sensing phytohormone gradients.
authors: Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS) UMR8197, Institut National de la Santé et de la Recherche Médicale (INSERM) U1024, Ecole Normale Supérieure, 46 rue d'Ulm, 75230 Paris Cedex 05, France.
authors: Ana Karina
authors: AK
authors: Morao
authors: Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS) UMR8197, Institut National de la Santé et de la Recherche Médicale (INSERM) U1024, Ecole Normale Supérieure, 46 rue d'Ulm, 75230 Paris Cedex 05, France. Electronic address: bouyer@biologie.ens.fr.
authors: Daniel
authors: D
authors: Bouyer
authors: Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS) UMR8197, Institut National de la Santé et de la Recherche Médicale (INSERM) U1024, Ecole Normale Supérieure, 46 rue d'Ulm, 75230 Paris Cedex 05, France; Laboratoire de Reproduction et Développement des Plantes, Centre National de la Recherche Scientifique (CNRS) UMR5667, Institut National de la Recherche Agronomique (INRA) UMR879, Ecole Normale Supérieure de Lyon, Université Lyon 1 (UCBL), 46 Allée d'Italie, 69364 Lyon Cedex 07, France. Electronic address: roudier@biologie.ens.fr.
authors: François
authors: F
authors: Roudier
mesh_terms: D002454:Cell Differentiation / Q000502:physiology; D049109:Cell Proliferation / Q000502:physiology; D002843:Chromatin / Q000378:metabolism*; D059828:Plant Cells / Q000378:metabolism* / Q000502:physiology; D010937:Plant Growth Regulators / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism*
chemical_list: D002843:Chromatin; D010937:Plant Growth Regulators