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Morphological variation of intervessel pit membranes and implications to xylem function in angiosperms

Jansen, Steven; Choat, Brendan; Pletsers, Annelies

Description

Pit membranes between xylem vessels have been suggested to have functional adaptive traits because of their influence on hydraulic resistance and vulnerability to embolism in plants. Observations of intervessel pit membranes in 26 hardwood species using electron microscopy showed significant variation in their structure, with a more than 25-fold difference in thickness (70-1892 nm) and observed maximum pore diameter (10-225 nm). In some SEM images, pit membrane porosity was affected by sample...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/36264
Source: American Journal of Botany
DOI: 10.3732/ajb.0800248

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