Skip to Main content Skip to Navigation
Journal articles

Regulatory role of cell division rules on tissue growth heterogeneity

Abstract : 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.
Document type :
Journal articles
Complete list of metadata

Cited literature [59 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02646165
Contributor : Migration Prodinra Connect in order to contact the contributor
Submitted on : Friday, May 29, 2020 - 4:06:52 AM
Last modification on : Wednesday, September 29, 2021 - 8:54:04 AM

File

2012_Alim_Frontiers in Plant S...
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

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

Share

Metrics

Record views

55

Files downloads

135