BEAUCHET, Arthur; BOLLIER, Norbert; GRISON, Magali; ROFIDAL, Valérie; GÉVAUDANT, Frédéric; BAYER, Emmanuelle; GONZALEZ, Nathalie; CHEVALIER, Christian

doi:10.1093/plphys/kiae198

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

http://creativecommons.org/licenses/by-nc-nd/

BEAUCHET, Arthur
Biologie du fruit et pathologie [BFP]

BOLLIER, Norbert
Biologie du fruit et pathologie [BFP]

GRISON, Magali
Laboratoire de biogenèse membranaire [LBM]

Langue

Article de revue

Ce document a été publié dans

Plant Physiology. 2024, vol. 196, n° 2, p. 883-901

Oxford University Press ; American Society of Plant Biologists

Résumé en anglais

Abstract FW2.2 (standing for FRUIT WEIGHT 2.2), the founding member of the CELL NUMBER REGULATOR (CNR) gene family, was the first cloned gene underlying a quantitative trait locus (QTL) governing fruit size and weight in tomato (Solanum lycopersicum). However, despite this discovery over 20 years ago, the molecular mechanisms by which FW2.2 negatively regulates cell division during fruit growth remain undeciphered. In the present study, we confirmed that FW2.2 is a membrane-anchored protein whose N- and C-terminal ends face the apoplast. We unexpectedly found that FW2.2 is located at plasmodesmata (PD). FW2.2 participates in the spatiotemporal regulation of callose deposition at PD and belongs to a protein complex which encompasses callose synthases. These results suggest that FW2.2 has a regulatory role in cell-to-cell communication by modulating PD transport capacity and trafficking of signaling molecules during fruit development.< Réduire

Mots clés en anglais

Solanum lycopersicum

DOI

http://dx.doi.org/10.1093/plphys/kiae198

Project ANR

Comment la communication de cellule à cellule régule-t'elle la croissance du fruit ? - ANR-20-CE20-0002
Développment d'une infrastructure française distribuée coordonnée - ANR-10-INBS-0004

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332