The endodermis.

Détails

ID Serval
serval:BIB_14DBC8169FE3
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Institution
Titre
The endodermis.
Périodique
Annual Review of Plant Biology
Auteur⸱e⸱s
Geldner N.
ISSN
1545-2123 (Electronic)
ISSN-L
1543-5008
Statut éditorial
Publié
Date de publication
2013
Volume
64
Pages
531-558
Langue
anglais
Résumé
A Casparian strip-bearing endodermis is a feature that has been invariably present in the roots of ferns and angiosperms for approximately 400 million years. As the innermost cortical layer that surrounds the central vasculature of roots, the endodermis acts as a barrier to the free diffusion of solutes from the soil into the stele. Based on an enormous body of anatomical and physiological work, the protective endodermal diffusion barrier is thought to be of major importance for many aspects of root biology, reaching from efficient water and nutrient transport to defense against soil-borne pathogens. Until recently, however, we were ignorant about the genes and mechanisms that drive the differentiation of this intricately structured barrier. Recent work in Arabidopsis has now identified the first major players in Casparian strip formation. A mechanistic understanding of endodermal differentiation will finally allow us to specifically interfere with endodermal barrier function and study the effects on plant growth and survival under various stress conditions. Here, I critically review the major findings and models related to endodermal structure and function from other plant species and assess them in light of recent molecular data from Arabidopsis, pointing out where the older, descriptive work can provide a framework and inspiration for further molecular dissection.
Mots-clé
Arabidopsis/cytology, Arabidopsis/physiology, Biological Transport, Cell Differentiation, Cell Wall/physiology, Plant Cells/chemistry, Plant Cells/physiology, Plant Physiological Phenomena, Plant Roots/cytology, Plant Roots/growth & development
Pubmed
Web of science
Création de la notice
01/05/2015 11:32
Dernière modification de la notice
20/08/2019 12:43
Données d'usage