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Mexican conifers differ in their capacity to face climate change

hal.structure.identifierUniversidad Michoacana de San Nicolás de Hidalgo [UMICH]
dc.contributor.authorSÁENZ-ROMERO, C.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLARTER, M.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGONZÁLEZ-MUÑOZ, N.
hal.structure.identifierUniversidad Juárez del Estado de Durango
dc.contributor.authorWEHENKEL, C.
hal.structure.identifierUniversidad Michoacana de San Nicolás de Hidalgo [UMICH]
dc.contributor.authorBLANCO-GARCIA, A.
hal.structure.identifierDepartment of Renewable Resources
dc.contributor.authorCASTELLANOS-ACUÑA, D.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, R
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, S
dc.date.accessioned2022-10-12T13:33:37Z
dc.date.available2022-10-12T13:33:37Z
dc.date.issued2017
dc.identifier.issn2426-413X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/158289
dc.description.abstractEnThe recent massive dieback of forest trees due to drought stress makes assessment of the variability of physiological traits that might be critical for predicting forest response and adaptation to climate change even more urgent. We investigated xylem vulnerability to cavitation and xylem specific hydraulic conductivity in seven species of three principal conifer genera (Juniperus monticola, Juniperus deppeana, Juniperus flaccida, Pinus pseudostrobus, Pinus leiophylla, Pinus devoniana, and the endangered Picea chihuahuana) of the Mexican mountains in order to identify the species most vulnerable to future warmer and drier climates. Hydraulic traits were examined using the in situ flow centrifuge technique (Cavitron) on branches collected from adult trees of natural populations and seedlings growing in a common garden. We found evidence of significant differences in xylem safety between genera (P 50 : pressure inducing 50% loss of hydraulic conductance): the three juniper species exhibited low P 50 values (ranging from-9.9 to-10.4 MPa), relative to the much more vulnerable pine and spruce species (P 50 ranging between-2.9 to-3.3 MPa). Our findings also revealed no variation in P 50 between adult trees assessed in the field and seedlings growing in a common garden. We therefore propose that if, as projected, climate change makes their natural habitats much warmer and drier, populations of Mexican pines and the studied spruce will be likely to decline severely as a result of drought-stress induced cavitation, while the juniper species will survive.
dc.language.isoen
dc.publisherINRA Science and Impact
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enMexican conifers differ in their capacity to face climate change
dc.typeArticle de revue
dc.identifier.doi10.20870/jph.2017.e003
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Botanique
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
bordeaux.journalJournal of Plant Hydraulics
bordeaux.pagee003
bordeaux.volume4
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01445515
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01445515v1
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