Section: Partnerships and Cooperations

Regional Initiatives

ENS de Lyon projets Emergents - Phyllo (2018 - 2019)

Participants : Christophe Godin, Bruno Leggio, Teva Vernoux [External Collaborator] .

The aim in this project is to develop a model of phyllotaxis that would be compatible with the recent detailed and quantitative observations made by our group of the distribution of auxin in space and time at the SAM. In particular the work will seek at using the new quantitative data to estimate the parameters of the stochastic model previously developed of organ patterning.

IDEX Lyon Impulsion - MecaField (2019 - 2020)

Participants : Christophe Godin, Bruno Leggio, Teva Vernoux [External Collaborator] .

In a previous work, we have shown that the coupling of mechanical and hydraulical descriptions in a 2D model of multicellular tissue growth induces the emergence of remarkable phenomena at tissue level. In particular, we have shown that the growth of an organ may induce a lateral inhibition surrounding the organ that prevents other organs to grow in its vicinity. The goal of this project is to estimate the hydraulic and mechanical parameters of such a model from confocal images of a growing SAM and to compare observations with the order of magnitude of the predicted inhibitory zones and of their amplitude at cellular resolution.