Titre
Small but thick enough-the Arabidopsis hypocotyl as a model to study secondary growth.
Type
synthèse (review)
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Ragni, L.
Auteure/Auteur
Hardtke, C.S.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1399-3054
Statut éditorial
Publié
Date de publication
2014
Volume
151
Numéro
2
Première page
164
Dernière page/numéro d’article
171
Langue
anglais
Résumé
The continuous production of vascular tissues through secondary growth results in radial thickening of plant organs and is pivotal for various aspects of plant growth and physiology, such as water transport capacity or resistance to mechanical stress. It is driven by the vascular cambium, which produces inward secondary xylem and outward secondary phloem. In the herbaceous plant Arabidopsis thaliana (Arabidopsis), secondary growth occurs in stems, in roots and in the hypocotyl. In the latter, radial growth is most prominent and not obscured by parallel ongoing elongation growth. Moreover, its progression is reminiscent of the secondary growth mode of tree trunks. Thus, the Arabidopsis hypocotyl is a very good model to study basic molecular mechanisms of secondary growth. Genetic approaches have succeeded in the identification of various factors, including peptides, receptors, transcription factors and hormones, which appear to participate in a complex network that controls radial growth. Many of these players are conserved between herbaceous and woody plants. In this review, we will focus on what is known about molecular mechanisms and regulators of vascular secondary growth in the Arabidopsis hypocotyl.
PID Serval
serval:BIB_EAAA61AE24F7
PMID
Date de création
2013-12-09T13:34:48.985Z
Date de création dans IRIS
2025-05-21T07:22:20Z