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dc.contributor.authorMartínez-Lüscher, Johann-
dc.contributor.authorMorales Iribas, Fermín-
dc.contributor.authorDelrot, Serge-
dc.contributor.authorSánchez-Díaz, Manuel-
dc.contributor.authorGomès, Eric-
dc.contributor.authorAguirreolea, Jone-
dc.contributor.authorPascual Elizalde, Inmaculada-
dc.identifier.citationPlant Science 232: 13-22 (2015)es_ES
dc.description34 Pags.- 3 Tabls.- 6 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/01689452es_ES
dc.description.abstractThis work aims to characterize the physiological response of grapevine (Vitis vinifera L.) cv. Tempranillo to UV-B radiation under water deficit conditions. Grapevine fruit-bearing cuttings were exposed to three levels of supplemental biologically effective UV-B radiation (0, 5.98 and 9.66 kJ m−2 day−1) and two water regimes (well watered and water deficit), in a factorial design, from fruit-set to maturity under glasshouse-controlled conditions. UV-B induced a transient decrease in net photosynthesis (Anet), actual and maximum potential efficiency of photosystem II, particularly on well watered plants. Methanol extractable UV-B absorbing compounds (MEUVAC) concentration and superoxide dismutase activity increased with UV-B. Water deficit effected decrease in Anet and stomatal conductance, and did not change non-photochemical quenching and the de-epoxidation state of xanthophylls, dark respiration and photorespiration being alternative ways to dissipate the excess of energy. Little interactive effects between UV-B and drought were detected on photosynthesis performance, where the impact of UV-B was overshadowed by the effects of water deficit. Grape berry ripening was strongly delayed when UV-B and water deficit were applied in combination. In summary, deficit irrigation did not modify the adaptive response of grapevine to UV-B, through the accumulation of MEUVAC. However, combined treatments caused additive effects on berry ripening.es_ES
dc.description.sponsorshipThis work was supported by Fundación Universitaria de Navarra, Navarra-Aquitaine Cooperation Program (Gobierno de Navarra and Conseil Régional d’Aquitaine), Ministerio de Ciencia e Innovación of Spain (MCINN BFU2011-26989), European Union (FP7-KBBE-2012-6-singlestage), Asociación de Amigos de la Universidad de Navarra (grant to J. M-L), UV4growth COST Action FA0906 and Gobierno de Aragón (A03 research group).es_ES
dc.subjectUV-B radiationes_ES
dc.subjectUV-B absorbing compoundses_ES
dc.subjectVitis vinifera Les_ES
dc.subjectWater deficites_ES
dc.titleCharacterization of the adaptive response of grapevine (cv. Tempranillo) to UV-B radiation under water deficit conditionses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderFundación Universitaria de Navarra-
dc.contributor.funderNafarroako Gobernua-
dc.contributor.funderConseil régional d'Aquitaine-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderAsociación de Amigos de la Universidad de Navarra-
dc.contributor.funderEuropean Cooperation in Science and Technology-
dc.contributor.funderGobierno de Aragón-
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