Hydraulic traits are associated with the distribution range of two closely related Mediterranean firs, Abies alba Mill. and Abies pinsapo Boiss

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dc.bibliographicCitation.endpage1075es_ES
dc.bibliographicCitation.issue10es_ES
dc.bibliographicCitation.stpage1067es_ES
dc.bibliographicCitation.titleTree Physiologyen
dc.bibliographicCitation.volume31es_ES
dc.contributor.authorGil Pelegrín, Eustaquioes_ES
dc.contributor.authorSancho Knapik, Domingoes_ES
dc.contributor.authorPeguero Pina, José Javieres_ES
dc.contributor.authorCochardn, H.es_ES
dc.contributor.authorBarredon, G.es_ES
dc.contributor.authorVillarroyan, D.es_ES
dc.coverage.spatialPenínsula Ibéricaes_ES
dc.date.accessioned2024-02-08T11:46:33Z
dc.date.available2024-02-08T11:46:33Z
dc.date.issued2011es_ES
dc.date.updated2024-02-08T08:06:18Z
dc.description.abstractAbies alba and Abies pinsapo are two closely related fir species that occur in the Iberian Peninsula under very different environmental conditions. Abies alba proliferates in the humid European mountains, including the Spanish Pyrenees. In contrast, A. pinsapo is a relict species that occurs in some restricted areas of the Mediterranean mountain ranges in Spain and Morocco, which experience intense summer drought periods. To cope with the high atmospheric evaporative demand during summer, A. pinsapo may either have a high resistance to xylem cavitation or develop a very efficient conducting system to reduce the soil-to-leaf water potential gradient. To investigate such hypotheses, we measured (i) the xylem vulnerability to cavitation for different populations, and (ii) several anatomical and hydraulic parameters indicating xylem sufficiency for supplying water to the shoot in two contrasting populations of both species. Our results show that the resistance to cavitation was not different between species or populations. However, hydraulic conductivity (Kh), specific hydraulic conductivity (K s), leaf-specific conductivity (LSC) and whole-shoot hydraulic conductance (K shoot) were higher in A. pinsapo, indicating a higher efficiency of water transport, which should contribute to maintaining its xylem tension below the threshold for rapidly increasing cavitation. The higher K s in A. pinsapo was largely a result of its wider tracheids, suggesting that this species may be much more vulnerable to freeze-thaw-induced cavitation than A. alba. This is consistent with the absence of A. pinsapo in northern mountain ranges with cooler winters. These physiological differences could partly explain the niche segregation and the geographical separation of these two firs.en
dc.description.sponsorshipEste estudio fue parcialmente financiado por el proyecto CAIXA GA-­LC­-­002/2010 (Departamento de Ciencia, Tecnología y Universidad, Gobierno de Aragón) y por el proyecto AGL2010-21153-C02-02 (Ministerio de Ciencia e Innovación). También se agradece el apoyo financiero del Gobierno de Aragón (grupo de investigación A54).es_ES
dc.description.statusPublishedes_ES
dc.identifier.citationPeguero-Pina, J. J., Sancho-Knapik, D., Cochard, H., Barredo, G., Villarroya, D., & Gil-Pelegrín, E. (2011). Hydraulic traits are associated with the distribution range of two closely related Mediterranean firs, Abies alba Mill. And Abies pinsapo Boiss. Tree Physiology, 31(10), 1067-1075. https://doi.org/10.1093/treephys/tpr092
dc.identifier.issn0829318X
dc.identifier.urihttp://hdl.handle.net/10532/6868
dc.language.isoenes_ES
dc.relation.doihttps://doi.org/10.1093/treephys/tpr092es_ES
dc.relation.urihttps://doi.org/10.1093/treephys/tpr092es_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Spaines_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.agrovocAbies albaes
dc.subject.agrovocAbies pinsapoes
dc.subject.agrovocConductividad hidráulicaes
dc.subject.agrovocConductancia foliares
dc.subject.agrovocCapacidad de retención de aguaes
dc.subject.otherAbies
dc.subject.otherAbies alba
dc.subject.otherAbies pinsapo
dc.subject.otherAdaptation
dc.subject.otherALPINE TIMBERLINE
dc.subject.otherAnatomy
dc.subject.otherArticle
dc.subject.otherCavitation
dc.subject.otherClimate
dc.subject.otherComparative Study
dc.subject.otherDrought stress
dc.subject.otherEcosystem
dc.subject.otherEnvironmental Conditions
dc.subject.otherEvaporation
dc.subject.otherevergreen tree
dc.subject.otherfrost
dc.subject.otherGeography
dc.subject.otherHistology
dc.subject.otherHydraulic Conductivity
dc.subject.otherIberian Peninsula
dc.subject.otherInduced Embolism
dc.subject.otherNiche
dc.subject.otherNorway Spruce
dc.subject.otherPhysiology
dc.subject.otherPINACEAE
dc.subject.otherPINUS-CONTORTA
dc.subject.otherPopulation Structure
dc.subject.otherScots pine
dc.subject.otherSeason
dc.subject.otherSeasons
dc.subject.otherSpain
dc.subject.otherSpecies Diversity
dc.subject.otherStomatal conductance
dc.subject.otherStone Pine
dc.subject.otherSummer drought
dc.subject.otherVulnerability
dc.subject.othervulnerability curves
dc.subject.otherWater
dc.subject.otherWater potential
dc.subject.otherWinter frost
dc.subject.otherXylem
dc.subject.otherXylem Cavitation
dc.titleHydraulic traits are associated with the distribution range of two closely related Mediterranean firs, Abies alba Mill. and Abies pinsapo Boissen
dc.typearticle*
dc.type.refereedRefereedes_ES
dc.type.specifiedArticlees_ES

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