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Visual and hydraulic techniques produce similar estimates of cavitation resistance in woody species

hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorGAUTHEY, Alice
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorPETERS, Jennifer
hal.structure.identifierSchool of Biological Sciences [Hobart]
dc.contributor.authorCARINS‐MURPHY, Madeline
hal.structure.identifierSchool of Biological Sciences [Hobart]
hal.structure.identifierInstituto de Recursos Naturales y Agrobiología de Sevilla [IRNAS]
dc.contributor.authorRODRIGUEZ‐DOMINGUEZ, Celia
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorLI, Ximeng
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierSynchrotron SOLEIL [SSOLEIL]
dc.contributor.authorKING, Andrew
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
hal.structure.identifierUniversidad Politécnica de Madrid [UPM]
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorLÓPEZ, Rosana
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorMEDLYN, Belinda
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorTISSUE, David
hal.structure.identifierSchool of Biological Sciences [Hobart]
dc.contributor.authorBRODRIBB, Tim
hal.structure.identifierHawkesbury Institute for the Environment [Richmond] [HIE]
dc.contributor.authorCHOAT, Brendan
dc.date2020
dc.date.issued2020
dc.identifier.issn0028-646X
dc.description.abstractEnHydraulic failure of the plant vascular system is a principal cause of forest die-off under drought. Accurate quantification of this process is essential to our understanding of the physiological mechanisms underpinning plant mortality. Imaging techniques increasingly are applied to estimate xylem cavitation resistance. These techniques allow forin situmeasurement of embolism formation in real time, although the benefits and trade-offs associated with different techniques have not been evaluated in detail. Here we compare two imaging methods, microcomputed tomography (microCT) and optical vulnerability (OV), to standard hydraulic methods for measurement of cavitation resistance in seven woody species representing a diversity of major phylogenetic and xylem anatomical groups. Across the seven species, there was strong agreement between cavitation resistance values (P-50) estimated from visualization techniques (microCT and OV) and between visual techniques and hydraulic techniques. The results indicate that visual techniques provide accurate estimates of cavitation resistance and the degree to which xylem hydraulic function is impacted by embolism. Results are discussed in the context of trade-offs associated with each technique and possible causes of discrepancy between estimates of cavitation resistance provided by visual and hydraulic techniques.
dc.language.isoen
dc.publisherWiley
dc.subject.enCavitation
dc.subject.enHydraulic
dc.subject.enMethods
dc.subject.enOptical
dc.subject.enStem
dc.title.enVisual and hydraulic techniques produce similar estimates of cavitation resistance in woody species
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.16746
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalNew Phytologist
bordeaux.page1-14
bordeaux.peerReviewedoui
hal.identifierhal-02914977
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02914977v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2020&rft.spage=1-14&rft.epage=1-14&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=GAUTHEY,%20Alice&PETERS,%20Jennifer&CARINS%E2%80%90MURPHY,%20Madeline&RODRIGUEZ%E2%80%90DOMINGUEZ,%20Celia&LI,%20Ximeng&rft.genre=article


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