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Direct X-Ray microtomography observation confirms the induction of embolism upon xylem cutting under tension
Citation
Torres-Ruiz, JM and Jansen, S and Choat, B and McElrone, AJ and Cochard, H and Brodribb, TJ and Badel, E and Burlett, R and Bouche, PS and Brodersen, CR and Li, S and Morris, H and Delzon, S, Direct X-Ray microtomography observation confirms the induction of embolism upon xylem cutting under tension, Plant Physiology, 167, (1) pp. 40-43. ISSN 0032-0889 (2015) [Refereed Article]
Copyright Statement
Copyright 2014 American Society of Plant Biologists
DOI: doi:10.1104/pp.114.249706
Abstract
Embolism resistance is a critically important trait for evaluating the ability of plants to survive and recover from drought
periods and predicting future drought-induced forest decline (Choat et al., 2012). However, recent publications have provided evidence that some measurement techniques used to evaluate the hydraulic function
and vulnerability to cavitation of plant organs may be prone to artifacts (Sperry et al., 2012; Cochard et al., 2013; Torres-Ruiz et al., 2014; Trifilò et al., 2014). The discovery of these artifacts has raised questions regarding the reliability of some previously published plant hydraulics
data, in particular data relating to the refilling of embolized xylem conduits while the xylem is under tension. In this context,
Wheeler et al. (2013) reported that sampling plant organs by cutting while the xylem is under tension can induce artificial increases in the degree
of embolism at the moment of sample excision, even when cuts are made under water. The methodology applied by Wheeler et al. (2013), however, did not allow the visualization of embolized or functional vessels, and native embolism levels could not be determined
in intact plants before any cutting was done.
Item Details
Item Type: | Refereed Article |
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Keywords: | xylem, drought, embolism |
Research Division: | Biological Sciences |
Research Group: | Plant biology |
Research Field: | Plant physiology |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the environmental sciences |
UTAS Author: | Brodribb, TJ (Professor Tim Brodribb) |
ID Code: | 100834 |
Year Published: | 2015 |
Funding Support: | Australian Research Council (DP120101686) |
Web of Science® Times Cited: | 124 |
Deposited By: | Plant Science |
Deposited On: | 2015-06-01 |
Last Modified: | 2017-11-02 |
Downloads: | 0 |
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