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Πεδίο DCΤιμήΓλώσσα
dc.contributor.authorTzortzakis, Nikos G.-
dc.contributor.authorChrysargyris, Antonios-
dc.contributor.authorAziz, Aziz-
dc.date.accessioned2020-03-12T06:44:49Z-
dc.date.available2020-03-12T06:44:49Z-
dc.date.issued2020-02-07-
dc.identifier.citationAgronomy, 2020, vol.10, no.2, articl. no. 249en_US
dc.identifier.issn20734395-
dc.description.abstractThe impact of climate change on viticulture is of major importance. Several international and indigenous grapevine cultivars have been examined for their adaptive performance to drought and heat stresses. However, the underlying physiological mechanisms are not well known. In the present study we examined the short-term effects of light and moderate drought stress (DS) as well as heat stress (HS) on physiological and biochemical attributes in two grapevine cultivars: Chardonnay (international) and Xynisteri, an indigenous adapted to the specific Cypriot microclimate. Xynisteri plants exhibited decreasing leaf stomatal conductance and photosynthetic rate as well as increasing total phenols and antioxidant capacity under DS conditions. These reactions were concomitant to a rapid accumulation of hydrogen peroxide and lipid peroxidation in leaves, associated to an increase of the antioxidant superoxide dismutase activity. However, Chardonnay plants did not exhibit the same responses as Xynisteri against DS (i.e., stomatal closure, total phenolics and antioxidants) over the first four days. Additionally, Chardonnay showed leaf damage with increased lipid peroxidation levels and activation of catalase and peroxidase. Interestingly, HS increased leaf stomatal conductance and decreased total phenolic content, flavonoids and antioxidant capacity in Chardonnay after 20 d of stress. In both cultivars, HS had milder effects compared to DS, and again Xynisteri showed better performance than Chardonnay in terms of damage index and antioxidative activities. Overall, Xynisteri adaptation to DS and HS was higher than that of Chardonnay, and both cultivars reacted more to the short-term DS than to HS. Although the Xynisteri performances under stress conditions provide an important resource for adaptation to stressful conditions, the impacts on earliness, yield and grape quality remain to be explored.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofAgronomyen_US
dc.rights© by the authorsen_US
dc.subjectClimate changeen_US
dc.subjectDrought stressen_US
dc.subjectHeat stressen_US
dc.subjectPhotosynthesisen_US
dc.subjectAntioxidantsen_US
dc.subjectLipid peroxidationen_US
dc.titleAdaptive response of a native mediterranean grapevine cultivar upon short-term exposure to drought and heat stress in the context of climate changeen_US
dc.typeArticleen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationUniversity of Reims Champagne-Ardenneen_US
dc.subject.categoryAgricultural Biotechnologyen_US
dc.journalsOpen Accessen_US
dc.countryCyprusen_US
dc.countryFranceen_US
dc.subject.fieldAgricultural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.3390/agronomy10020249en_US
dc.identifier.scopus2-s2.0-85079389694-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85079389694-
dc.relation.issue2en_US
dc.relation.volume10en_US
cut.common.academicyear2019-2020en_US
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn2073-4395-
crisitem.journal.publisherMDPI-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0002-2719-6627-
crisitem.author.orcid0000-0002-1067-7977-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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