Root resistance to cavitation is accurately measured using a centrifuge technique
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منابع مشابه
Root resistance to cavitation is accurately measured using a centrifuge technique.
Plants transport water under negative pressure and this makes their xylem vulnerable to cavitation. Among plant organs, root xylem is often highly vulnerable to cavitation due to water stress. The use of centrifuge methods to study organs, such as roots, that have long vessels are hypothesized to produce erroneous estimates of cavitation resistance due to the presence of open vessels through me...
متن کاملXylem vulnerability to cavitation can be accurately characterised in species with long vessels using a centrifuge method.
Vulnerability to cavitation curves describe the decrease in xylem hydraulic conductivity as xylem pressure declines. Several techniques for constructing vulnerability curves use centrifugal force to induce negative xylem pressure in stem or root segments. Centrifuge vulnerability curves constructed for long-vesselled species have been hypothesised to overestimate xylem vulnerability to cavitati...
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Vulnerability to cavitation is a key variable defining the limits to drought resistance in woody plants (Kursar et al., 2009). This trait is typically assessed by a vulnerability curve, which can be generated by a range of methods, including dehydration (Sperry et al., 1988), air injection (Cochard et al., 1992), and centrifugation (Alder et al., 1997). Results from two recent papers suggest th...
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ژورنال
عنوان ژورنال: Tree Physiology
سال: 2015
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/tpv003