Regulatory role of cell division rules on tissue growth heterogeneity - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Frontiers in Plant Science Année : 2012

Regulatory role of cell division rules on tissue growth heterogeneity

Résumé

The coordination of cell division and cell expansion are critical to normal development of tissues. In plants, cell wall mechanics and the there from arising cell shapes and mechanical stresses can regulate cell division and cell expansion and thereby tissue growth and morphology. Limited by experimental accessibility it remains unknown how cell division and expansion cooperatively affect tissue growth dynamics. Employing a cell-based two dimensional tissue simulation we investigate the regulatory role of a range of cell division rules on tissue growth dynamics and in particular on the spatial heterogeneity of growth. We find that random cell divisions only add noise to the growth and therefore increase growth heterogeneity, while cell divisions following the shortest new wall or along the direction of maximal mechanical stress reduce growth heterogeneity by actively enhancing the regulation of growth by mechanical stresses. Thus, we find that, beyond tissue geometry and topology, cell divisions affect the dynamics of growth, and that their signature is embedded in the statistics of tissue growth.
Fichier principal
Vignette du fichier
2012_Alim_Frontiers in Plant Science_1.pdf (787.29 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02646165 , version 1 (29-05-2020)

Licence

Paternité

Identifiants

Citer

Karen Alim, Olivier O. Hamant, Arezki Boudaoud. Regulatory role of cell division rules on tissue growth heterogeneity. Frontiers in Plant Science, 2012, 3, pp.1-13. ⟨10.3389/fpls.2012.00174⟩. ⟨hal-02646165⟩
18 Consultations
62 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More