Entries by Guillaume Charrier

Extrapolating physiological response to drought through step-by-step analysis of water potential

November 13, 2020 in , , , /by

Guillaume Charrier Université Clermont Auvergne, INRAE, PIAF, F-63000 Clermont-Ferrand, France. guillaume.charrier@inrae.fr Water potential (Ψ) defines the energy required to move water between the different compartments of a closed system. Water flows passively in the direction of decreasing Ψ: in plants, from slightly negative Ψ at the soil and root level to strongly negative Ψ at […]

Gaining sugars while sweating, how do leaves regulate their osmolarity?

September 21, 2020 in , , , /by

Guillaume Charrier Université Clermont Auvergne, INRAE, PIAF, F-63000 Clermont-Ferrand, France. guillaume.charrier@inrae.fr Leaves are specialized for the photosynthetic assimilation of atmospheric carbon, but they also are responsible for the transpiration of water into the atmosphere, as the final output of the plant’s hydraulic system. They therefore regulate a significant part of the carbon and water flow […]