Bio-Protoc.
CHARRIER, Guillaume
Biodiversité, Gènes & Communautés [BioGeCo]
Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
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Biodiversité, Gènes & Communautés [BioGeCo]
Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
CHARRIER, Guillaume
Biodiversité, Gènes & Communautés [BioGeCo]
Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
< Réduire
Biodiversité, Gènes & Communautés [BioGeCo]
Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
Langue
en
Article de revue
Ce document a été publié dans
Bio-protocol. 2017, vol. 7, n° 20, p. 1-9
Bio-protocol LCC
Résumé en anglais
Xylem sap circulates under either positive or negative hydraulic pressure in plants. Negative hydraulic pressure (i.e., tension) is the most common situation when transpiration is high, and several devices have been developed ...Lire la suite >
Xylem sap circulates under either positive or negative hydraulic pressure in plants. Negative hydraulic pressure (i.e., tension) is the most common situation when transpiration is high, and several devices have been developed to quantify it accurately (e.g., Scholander pressure chamber, psychrometers). However, a proper measurement of positive xylem sap pressures may be critical when pressure is generated by the root system, allowing vessels to be refilled. Here, we describe two different methods to monitor positive xylem bulk pressure: the pressure gauge which can only be set onto a rootstock or a side branch and the point pressure sensor, which can allow measurements from a functioning plant without detopping or cutting.< Réduire
Mots clés
Xylème
Pression de seve
Psychromètre
Mots clés en anglais
Pressure
Tension
Water Status
Xylem Water Potential
Project ANR
COntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045
Origine
Importé de halUnités de recherche