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Dernière mise à jour : Mai 2018

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HYDRO (Hydraulic architecture and drought resistance of trees)

Leader : Dr. Hervé COCHARD


Research of the HYDRO team relates to the physiological and genetic determinants of the hydraulic architecture of the trees and the implications on their growth and their resistance to drought. The sap conducting system ensures the water supply of the trees which conditions their water status. The modulation of the functional characteristics of this system by the environment has major implications on the physiology of the tree. The objective of the team is to highlight the physiological processes and the genetic bases which control the hydraulic characteristics of trees. Two research orientations are developed. The first relates to the modulation of foliar hydraulic resistances by the environment and the implication of aquaporines in this response. The second axis relates to the vulnerability of vascular conduits to cavitation and to the impact of the embolism on the physiology of the tree. The structural and genetic bases of the resistance to cavitation are studied. The more applied aspects of these researches relate to the improvement of tree drought resistance, for both the point of view of their growth as of their survival to extreme droughts. The Hydro team is currently composed of 7 permanent scientists (3INRA and 4 Academics).


Presentation of HYDRO methods

 ©Photos PIAF