Séminaire Ecobio - Vincent Milesi (ISTO, Univ. Orléans)

Thermodynamic modelling of metagenome-inferred proteins reveals metastable equilibrium of microbial communitiy with redox gradient in peat soil

Séminaire Ecobio - Vincent Milesi (ISTO, Univ. Orléans)
Vendredi 10 novembre 2023, 13h00
OSUR Observatorie des Sciences de l'Univers de Rennes - Université de Rennes, 263 avenue de Général Lecler, campus de Beaulieu, Bâtiment 15, salle Bernard Auvray

Peatlands represent only 3% of the terrestrial surface but store up to 30% of the world's soil carbon. How environmental and anthropogenic forcing will alter the microbial activity controlling peatland carbon balance is poorly understood. In this presentation, i will show how metagenomic data can be used to develop a thermodynamic model of protein metastability that links the chemical composition of microbial communities to redox gradients in peat soil. This work provides a mechanistic understanding of the co-evolution of biosphere and geosphere and offer prospects for the predictive modeling of microbial communitiy composition in disturbed peatlands.