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Antioxidant adjustments of olive trees (Olea europaea) under field stress conditions

2021Journal article Open access
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dc.contributor.authorAraújo, Márcia
dc.contributor.authorPrada, João
dc.contributor.authorMariz-Ponte, Nuno
dc.contributor.authorSantos, Conceição
dc.contributor.authorPereira, J.A.
dc.contributor.authorPinto, Diana
dc.contributor.authorSilva, Artur
dc.contributor.authorDias, Maria Celeste
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-23T12:12:46Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-23T12:12:46Z
dc.date.issued2021
dc.description.abstractExtreme climate events are increasingly frequent, and the 2017 summer was particularly critical in the Mediterranean region. Olive is one of the most important species of this region, and these climatic events represent a threat to this culture. However, it remains unclear how olive trees adjust the antioxidant enzymatic system and modulate the metabolite profile under field stress con-ditions. Leaves from two distinct adjacent areas of an olive orchard, one dry and the other hydrated, were harvested. Tree water status, oxidative stress, antioxidant enzymes, and phenolic and lipo-philic metabolite profiles were analyzed. The environmental conditions of the 2017 summer caused a water deficit in olive trees of the dry area, and this low leaf water availability was correlated with the reduction of long†chain alkanes and fatty acids. Hydrogen peroxide (H2O2) and superoxide radical (O2•–) levels increased in the trees collected from the dry area, but lipid peroxidation did not augment. The antioxidant response was predominantly marked by guaiacol peroxidase (GPOX) activity that regulates the H2O2 harmful effect and by the action of flavonoids (luteolin†7†O†glucu-ronide) that may act as reactive oxygen species scavengers. Secoiridoids adjustments may also con-tribute to stress regulation. This work highlights for the first time the protective role of some metabolite in olive trees under field drought conditions.en_EN
dc.description.sponsorshipFoundation for Science and Technology (FCT, Portugal) and Ministério da Educação e Ciência supported this work through national funds and the co-funding by the FEDER within the PT2020 Partnership Agreement and COMPETE 2010. Within the projects of the CEF research unit UI0183– UID/BIA/04004/2020, QOPNA research unit UID/QUI/00062/2019, LAQV-REQUIMTE UIDB/50006/2020, and CIMO UIDB/00690/2020. FCT supported the doctoral fellowship of MAraújo (SFRH/BD/116801/2016), N. Mariz-Ponte (SFRH/BD/138187/2018), and the research contract of MC Dias (SFRH/BPD/100865/2014) through POCH/FSE.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationAraújo, Márcia; Prada, João; Mariz-Ponte, Nuno; Santos, Conceição; Pereira, José Alberto; Pinto, Diana C.G.A.; Silva, Artur M.S.; Dias, Maria Celeste (2021). Antioxidant adjustments of olive trees (Olea europaea) under field stress conditions. Plants. ISSN 2223-7747. 10:4, p. 1-17en_EN
dc.identifier.doi10.3390/plants10040684en_EN
dc.identifier.issn2223-7747
dc.identifier.urihttp://hdl.handle.net/10198/24371
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationUID/BIA/04004/2020
dc.relationOrganic Chemistry, Natural Products and Food Stuffs
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationMountain Research Center
dc.relationOliveOmics - Understanding the influence of climate change on olive fruit development and olive oil: an omics’ approach
dc.relationI2Psa: Characterizing Psa-Actinidia pathosystems in Portuguese orchards: biovars, host-pathogen interaction and new control compounds
dc.relationAdaptOlive - Understanding olive adaptations to changing environments: physiology, metabolomics and gene expression
dc.subjectClimate changeen_EN
dc.subjectDroughten_EN
dc.subjectFlavonoidsen_EN
dc.subjectOlea europaeaen_EN
dc.subjectRainfed olive grovesen_EN
dc.subjectSecoiridoidsen_EN
dc.titleAntioxidant adjustments of olive trees (Olea europaea) under field stress conditionsen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleOrganic Chemistry, Natural Products and Food Stuffs
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleMountain Research Center
oaire.awardTitleOliveOmics - Understanding the influence of climate change on olive fruit development and olive oil: an omics’ approach
oaire.awardTitleI2Psa: Characterizing Psa-Actinidia pathosystems in Portuguese orchards: biovars, host-pathogen interaction and new control compounds
oaire.awardTitleAdaptOlive - Understanding olive adaptations to changing environments: physiology, metabolomics and gene expression
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00062%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F116801%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F138187%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F100865%2F2014/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
oaire.fundingStreamFARH
person.familyNamePereira
person.givenNameJosé Alberto
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id57204366348
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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