Les séminaires ont lieu sur le Campus Montpellier InstitutAgro/INRAE
de La Gaillarde (2, place P. Viala Montpellier)

Jeudi 13 avril 2023

à 14h – Amphi 206

 

Guillaume Lobet

( Earth and Life Institute, Louvain, Belgique )

 

Computational approaches to better understand how local root anatomies influence global root system conductivities

Finding plants that are well adapted hydraulically to specific pedo-climatic environments is aimed for present and future yield improvement and increasing the sustainability of our crop systems. A better understanding of the underlying root hydraulic properties could be put at use to target strategies, if needed, which could increase their water uptake in these specific environments. Here, we associated different computational models into a structured network to virtually simulate water flow in the soil-root system over 30 days of crop development. This pipeline was built so we could pinpoint specific root anatomical traits, sub-cellular hydraulic properties and maturation rate which could improve the root water uptake in a chosen pedo-climatic environment. Using our new modelling pipeline, it was possible to estimate optimum traits depending on pedo-climatic constraints. These early in silico results suggest that root radii, the contribution of aquaporins to the cell membrane permeability, and maturation rates are important traits to target when looking for adapted traits in specific environments.

Contact: Yann Boursiac


Contacts IBIP :

Sabine Zimmermann (sabine.zimmermann@cnrs.fr)

Alexandre Martiniere (alexandre.martiniere@cnrs.fr)

Aude Coupel-Ledru (aude.coupel-ledru@inrae.fr)

Chantal Baracco (chantal.baracco@inrae.fr)