Optical Measurement of Stem Xylem Vulnerability1[OPEN]
Identifieur interne : 001A87 ( Pmc/Corpus ); précédent : 001A86; suivant : 001A88Optical Measurement of Stem Xylem Vulnerability1[OPEN]
Auteurs : Timothy J. Brodribb ; Marc Carriqui ; Sylvain Delzon ; Christopher LucaniSource :
- Plant Physiology [ 0032-0889 ] ; 2017.
Abstract
An optical method is shown to accurately measure the vulnerability of stem xylem to cavitation during water stress.
Url:
DOI: 10.1104/pp.17.00552
PubMed: 28684434
PubMed Central: 5543975
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PMC:5543975Le document en format XML
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<author><name sortKey="Brodribb, Timothy J" sort="Brodribb, Timothy J" uniqKey="Brodribb T" first="Timothy J." last="Brodribb">Timothy J. Brodribb</name>
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<author><name sortKey="Carriqui, Marc" sort="Carriqui, Marc" uniqKey="Carriqui M" first="Marc" last="Carriqui">Marc Carriqui</name>
<affiliation><nlm:aff id="aff2">Department of Biology, Universitat de les Illes Balears, Palma, Illes Balears, Spain</nlm:aff>
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<author><name sortKey="Delzon, Sylvain" sort="Delzon, Sylvain" uniqKey="Delzon S" first="Sylvain" last="Delzon">Sylvain Delzon</name>
<affiliation><nlm:aff id="aff3">BIOGECO, INRA, University of Bordeaux, 33610 Pessac, France</nlm:aff>
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<author><name sortKey="Lucani, Christopher" sort="Lucani, Christopher" uniqKey="Lucani C" first="Christopher" last="Lucani">Christopher Lucani</name>
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<author><name sortKey="Delzon, Sylvain" sort="Delzon, Sylvain" uniqKey="Delzon S" first="Sylvain" last="Delzon">Sylvain Delzon</name>
<affiliation><nlm:aff id="aff3">BIOGECO, INRA, University of Bordeaux, 33610 Pessac, France</nlm:aff>
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<author><name sortKey="Lucani, Christopher" sort="Lucani, Christopher" uniqKey="Lucani C" first="Christopher" last="Lucani">Christopher Lucani</name>
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<series><title level="j">Plant Physiology</title>
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<front><div type="abstract" xml:lang="en"><p>An optical method is shown to accurately measure the vulnerability of stem xylem to cavitation during water stress.</p>
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<front><journal-meta><journal-id journal-id-type="nlm-ta">Plant Physiol</journal-id>
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<title-group><article-title>Optical Measurement of Stem Xylem Vulnerability<xref ref-type="fn" rid="fn1"><sup>1</sup>
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<xref ref-type="fn" rid="fn2"><sup>[OPEN]</sup>
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<name><surname>Brodribb</surname>
<given-names>Timothy J.</given-names>
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<xref ref-type="aff" rid="aff1"><sup>a</sup>
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<xref ref-type="corresp" rid="cor1"><sup>2</sup>
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<contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0002-0153-2602</contrib-id>
<name><surname>Carriqui</surname>
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<xref ref-type="aff" rid="aff2"><sup>b</sup>
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<contrib contrib-type="author"><contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0003-3442-1711</contrib-id>
<name><surname>Delzon</surname>
<given-names>Sylvain</given-names>
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<xref ref-type="aff" rid="aff3"><sup>c</sup>
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<xref ref-type="aff" rid="aff1"><sup>a</sup>
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School of Biology, University of Tasmania, Hobart 7001, Australia</aff>
<aff id="aff2"><label>b</label>
Department of Biology, Universitat de les Illes Balears, Palma, Illes Balears, Spain</aff>
<aff id="aff3"><label>c</label>
BIOGECO, INRA, University of Bordeaux, 33610 Pessac, France</aff>
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<author-notes><fn><p><ext-link ext-link-type="uri" xlink:href="http://www.plantphysiol.org/cgi/doi/10.1104/pp.17.00552">www.plantphysiol.org/cgi/doi/10.1104/pp.17.00552</ext-link>
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<corresp id="cor1"><label>2</label>
Address correspondence to <email>timothyb@utas.edu.au</email>
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<fn id="afn1"><p>The author responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions for Authors (<ext-link ext-link-type="uri" xlink:href="http://www.plantphysiol.org">www.plantphysiol.org</ext-link>
) is: Timothy J. Brodribb (<email>timothyb@utas.edu.au</email>
).</p>
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<volume>174</volume>
<issue>4</issue>
<fpage>2054</fpage>
<lpage>2061</lpage>
<history><date date-type="received"><day>21</day>
<month>4</month>
<year>2017</year>
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<date date-type="accepted"><day>30</day>
<month>6</month>
<year>2017</year>
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<permissions><copyright-statement>© 2017 American Society of Plant Biologists. All Rights Reserved.</copyright-statement>
<copyright-year>2017</copyright-year>
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<abstract abstract-type="precis"><p>An optical method is shown to accurately measure the vulnerability of stem xylem to cavitation during water stress.</p>
</abstract>
<abstract><p>The vulnerability of plant water transport tissues to a loss of function by cavitation during water stress is a key indicator of the survival capabilities of plant species during drought. Quantifying this important metric has been greatly advanced by noninvasive techniques that allow embolisms to be viewed directly in the vascular system. Here, we present a new method for evaluating the spatial and temporal propagation of embolizing bubbles in the stem xylem during imposed water stress. We demonstrate how the optical method, used previously in leaves, can be adapted to measure the xylem vulnerability of stems. Validation of the technique is carried out by measuring the xylem vulnerability of 13 conifers and two short-vesseled angiosperms and comparing the results with measurements made using the cavitron centrifuge method. Very close agreement between the two methods confirms the reliability of the new optical technique and opens the way to simple, efficient, and reliable assessment of stem vulnerability using standard flatbed scanners, cameras, or microscopes.</p>
</abstract>
<funding-group><award-group id="sp1"><funding-source>Australian Research Council</funding-source>
<award-id rid="sp1">DP170100761</award-id>
</award-group>
<award-group id="sp2"><funding-source>European Social Fund predoctoral fellowship</funding-source>
<award-id rid="sp2">FPR/1700/2014</award-id>
</award-group>
</funding-group>
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<notes><glossary><title>Glossary</title>
<def-list><def-item><term id="term1">OV</term>
<def id="def1"><p>optical vulnerability</p>
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