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On the air permeability of Populus pit

Capron, Marie and Tordjeman, Philippe and Charru, François On the air permeability of Populus pit. (2012) Computer Methods in Biomechanics and Biomedical Engineering, 15 (S1). 30-31. ISSN 1025-5842

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Official URL: http://dx.doi.org/10.1080/10255842.2012.713634

Abstract

Sap hydrodynamics in vascular cells of trees seems to be controlled by small membranes called pits. Understanding how the pit junctions regulate the sap flow and stop embolism by cavitation is today a challenging issue. The hypothesis that the pit porosity adjusts the flow under negative pressure and stops the air bubble diffusion need to be validated. In this talk, we will present the experimental results on Populus trees that support the idea that pits operate "passively" in a biological point of view. This work is based on atomic force microscope (AFM) experiments, which have been realised to measure quantitatively the mechanical properties of pits at the nanoscale.

Item Type:Article
Additional Information:Thanks to Taylor & Francis editor. The original PDF of the article can be found at Computer Methods in Biomechanics and Biomedical Engineering website : http://www.sciencedirect.com/science/journal/00406031
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Philippe TORDJEMAN
Deposited On:15 Nov 2013 14:30

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