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A network model links wood anatomy to xylem tissue hydraulic behaviour and vulnerability to cavitation

hal.structure.identifierNicholas School of the Environment
dc.contributor.authorMRAD, Assaad
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorDOMEC, Jean-Christophe
hal.structure.identifierDepartment of Biology [New Mexico]
dc.contributor.authorHUANG, Cheng-Wei
hal.structure.identifierNaturalis Biodiversity Center [Leiden]
dc.contributor.authorLENS, Frederic
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorKATUL, Gabriel
dc.date.accessioned2024-04-08T12:05:08Z
dc.date.available2024-04-08T12:05:08Z
dc.date.issued2018
dc.identifier.issn0140-7791
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196341
dc.description.abstractEnPlant xylem response to drought is routinely represented by a vulnerability curve (VC). Despite the significance of VCs, the connection between anatomy and tissue-level hydraulic response to drought remains a subject of inquiry. We present a numerical model of water flow in flowering plant xylem that combines current knowledge on diffuse-porous anatomy and embolism spread to explore this connection. The model produces xylem networks and uses different parameterizations of intervessel connection vulnerability to embolism spread: the Young-Laplace equation and pit membrane stretching. Its purpose is upscaling processes occurring on the microscopic length scales, such as embolism propagation through pit membranes, to obtain tissue-scale hydraulics. The terminal branch VC of Acer glabrum was successfully reproduced relying only on real observations of xylem tissue anatomy. A sensitivity analysis shows that hydraulic performance and VC shape and location along the water tension axis are heavily dependent on anatomy. The main result is that the linkage between pit-scale and vessel-scale anatomical characters, along with xylem network topology, affects VCs significantly. This work underscores the importance of stepping up research related to the three-dimensional network structure of xylem tissues. The proposed model's versatility makes it an important tool to explore similar future questions.
dc.language.isoen
dc.publisherWiley
dc.subjectAcer
dc.subjecthydraulics
dc.subjectmodel
dc.subject.enanatomy
dc.subject.encavitation
dc.subject.ennetwork
dc.subject.envulnerability curve
dc.subject.enwood
dc.subject.enxylem
dc.title.enA network model links wood anatomy to xylem tissue hydraulic behaviour and vulnerability to cavitation
dc.typeArticle de revue
dc.identifier.doi10.1111/pce.13415
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalPlant, Cell and Environment
bordeaux.page2718-2730
bordeaux.volume41
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue12
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02623852
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02623852v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant,%20Cell%20and%20Environment&rft.date=2018&rft.volume=41&rft.issue=12&rft.spage=2718-2730&rft.epage=2718-2730&rft.eissn=0140-7791&rft.issn=0140-7791&rft.au=MRAD,%20Assaad&DOMEC,%20Jean-Christophe&HUANG,%20Cheng-Wei&LENS,%20Frederic&KATUL,%20Gabriel&rft.genre=article


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