Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis

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dc.bibliographicCitation.endpage2026es_ES
dc.bibliographicCitation.issue7es_ES
dc.bibliographicCitation.stpage2013es_ES
dc.bibliographicCitation.titleJournal Of Experimental Botanyen
dc.bibliographicCitation.volume75es_ES
dc.contributor.authorSáez, Patricia Les_ES
dc.contributor.authorVallejos, Valentinaes_ES
dc.contributor.authorSancho Knapik, Domingoes_ES
dc.contributor.authorCavieres, Lohengrin Aes_ES
dc.contributor.authorRamírez, Constanza Fes_ES
dc.contributor.authorBravo, León Aes_ES
dc.contributor.authorPeguero Pina, José Javieres_ES
dc.contributor.authorGil Pelegrín, Eustaquioes_ES
dc.contributor.authorGalmes, Jeronies_ES
dc.coverage.spatialSAFMAes_ES
dc.date.accessioned2024-12-12T08:47:30Z
dc.date.available2024-12-12T08:47:30Z
dc.date.issued2024es_ES
dc.date.updated2024-12-03T09:42:02Z
dc.description.abstractOne of the well-documented effects of regional warming in Antarctica is the impact on flora. Warmer conditions modify several leaf anatomical traits of Antarctic vascular plants, increasing photosynthesis and growth. Given that CO2 and water vapor partially share their diffusion pathways through the leaf, changes in leaf anatomy could also affect the hydraulic traits of Antarctic plants. We evaluated the effects of growth temperature on several anatomical and hydraulic parameters of Antarctic plants and assessed the trait co-variation between these parameters and photosynthetic performance. Warmer conditions promoted an increase in leaf and whole plant hydraulic conductivity, correlating with adjustments in carbon assimilation. These adjustments were consistent with changes in leaf vasculature, where Antarctic species displayed different strategies. At higher temperature, Colobanthus quitensis decreased the number of leaf xylem vessels, but increased their diameter. In contrast, in Deschampsia antarctica the diameter did not change, but the number of vessels increased. Despite this contrasting behavior, some traits such as a small leaf diameter of vessels and a high cell wall rigidity were maintained in both species, suggesting a water-conservation response associated with the ability of Antarctic plants to cope with harsh environments. Antarctic vascular plants modify leaf anatomical traits with increasing growth temperature, enabling coordinated increases in leaf hydraulic conductivity and photosynthetic capacity.en
dc.description.otherAntarctic plantsen
dc.description.otherclimate changeen
dc.description.othergrowth temperatureen
dc.description.otherhydraulicen
dc.description.otherphotosynthesisen
dc.description.otherwarmingen
dc.description.sponsorshipThis work was supported by the National Research and Development Agency (ANID) through the projects: FONDECYT 1211231, ANILLO ACT-210038, EQM-210094, and FB-210006, and the Chilean Antarctic Institute (INACH) through the project INACH RT_13-16es_ES
dc.description.statusPublishedes_ES
dc.identifier.citationSaez, Patricia L; Vallejos, Valentina; Sancho-Knapik, Domingo; Cavieres, Lohengrin A; Ramirez, Constanza F; Bravo, L.A.; Peguero Pina, J.J.; Gil Pelegrín, E.; Galmés, J..Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis. Journal of experimental botany, 2024, 75, 7, 2013-2026
dc.identifier.issn00220957
dc.identifier.urihttp://hdl.handle.net/10532/7416
dc.language.isoenes_ES
dc.relation.doihttps://doi.org/10.1093/jxb/erad474es_ES
dc.relation.urihttps://doi.org/10.1093/jxb/erad474es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Españaes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/es_ES
dc.subject.agrovocCambio climáticoes
dc.subject.agrovocAntártidaes
dc.subject.agrovocPlantases
dc.subject.agrovocFotosíntesises
dc.subject.agrovocTemperaturaes
dc.subject.otherAntarctic plants
dc.subject.otherAntarctic Regions
dc.subject.otherClimate Change
dc.subject.otherCo2
dc.subject.otherGas-Exchange
dc.subject.otherGrowth temperature
dc.subject.otherHydraulic
dc.subject.otherInduced Embolism
dc.subject.otherLEAVE
dc.subject.otherLimiting factor
dc.subject.otherMesophyll conductance
dc.subject.otherPhotosynthesis
dc.subject.otherPlant Leaves
dc.subject.otherPlants
dc.subject.otherPressure
dc.subject.otherPRUNUS-LAUROCERASUS
dc.subject.otherTemperature
dc.subject.otherVascular Plants
dc.subject.otherwarmin
dc.subject.otherWarming
dc.subject.otherWater relations
dc.titleLeaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesisen
dc.typeJournal Contribution*
dc.type.refereedRefereedes_ES
dc.type.specifiedArticlees_ES

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