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A second pathway for gas out of the pressure chamber - what is being squeezed?

Canny, Martin; Roderick, Michael

Description

We report a qualitative description of the flows of gas that occur through a leaf when its balance pressure is measured in the pressure chamber. There are two distinct pathways: (a) a bulk flow of gas through the intercellular air spaces, and (b) a diffusion-driven pathway where gas is dissolved into solution under high pressure and comes out of solution at the liquid/atmosphere surface of the cut end where the pressure is atmospheric. The intercellular space flow is well known. It is argued...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/79125
Source: Plant Physiology and Biochemistry
DOI: 10.1016/j.plaphy.2005.02.015

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