BEAUCHET, Arthur; GÉVAUDANT, Frédéric; GONZALEZ, Nathalie; CHEVALIER, Christian

doi:10.1093/jxb/erab207/6273779

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

BEAUCHET, Arthur
Biologie du fruit et pathologie [BFP]

GÉVAUDANT, Frédéric
Biologie du fruit et pathologie [BFP]

GONZALEZ, Nathalie
Biologie du fruit et pathologie [BFP]

Langue

Article de revue

Ce document a été publié dans

Journal of Experimental Botany. 2021, vol. 72, n° 15, p. 5300-5311

Oxford University Press (OUP)

Résumé en anglais

The FW2.2 gene is associated with the major Quantitative Trait Locus (QTL) governing fruit size in tomato, and acts by negatively controlling cell division during fruit development. FW2.2 belongs to a multigene family named the CELL NUMBER REGULATOR (CNR) family. The CNR proteins harbour the uncharacterized PLAC8 motif made of two conserved cysteine-rich domains separated by a variable region that are predicted to be transmembrane segments, and indeed FW2.2 localizes to the plasma membrane. Although FW2.2 was cloned more than two decades ago, the molecular mechanisms of FW2.2 action remain unknown. Especially, how FW2.2 functions to regulate cell cycle and fruit growth, and thus fruit size, is yet not understood. We here review the current knowledge on PLAC8containing CNR/FWL proteins in plants, which are described to participate in plant organogenesis and the regulation of organ size, especially in fruits, and in Cadmium resistance, ion homeostasis and/or Ca2+ signalling. Within the plasma membrane, FW2.2 and some CNR/FWL are localized in microdomains, which is supported by recent data from interactomics studies. Hence FW2.2 and CNR/FWL could be involved in a transport function of signalling molecules across membranes, thus influencing organ growth via a cell-to-cell trafficking mechanism.< Réduire

Mots clés

physiologie végétale

Développement du fruit

Mots clés en anglais

fruit

FW2.2

growth

microdomains

PLAC8 domain

plasma membrane

tomato

Cell cycle

Cell number regulator

DOI

http://dx.doi.org/10.1093/jxb/erab207/6273779

Project ANR

Comment la communication de cellule à cellule régule-t'elle la croissance du fruit ? - ANR-20-CE20-0002

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332