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Kaolin and salicylic acid alleviate summer stress in rainfed olive orchards by modulation of distinct physiological and biochemical responses

2019Journal article Open access
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dc.contributor.authorBrito, Cátia
dc.contributor.authorDinis, Lia Tânia
dc.contributor.authorSilva, Ermelinda
dc.contributor.authorGonçalves, Alexandre
dc.contributor.authorMeijón, Mónica
dc.contributor.authorEscandón, Mónica
dc.contributor.authorArrobas, Margarida
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorMoutinho-Pereira, José
dc.contributor.authorCorreia, Carlos M.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2019-01-28T11:45:10Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2019-01-28T11:45:10Z
dc.date.issued2019
dc.description.abstractIn a changing world, the search for new agronomic practices that help crops to maintain and/or increase yields and quality is a continuous challenge. We aim to evaluate kaolin (KL) and salicylic acid (SA) effectiveness as summer stress alleviating agents through physiological, biochemical and immunohistochemical analysis. Olive trees (Olea europaea L. cv. Cobrançosa) grown under rainfed conditions were sprayed with 5% KL and 100 μM SA, at the beginning of summer, during two consecutive years. KL enhanced relative water content (RWC), stomatal conductance (gs) net photosynthesis (A) and leaf indole-3-acetic acid (IAA) signal, and decreased leaf sclerophylly, secondary metabolites and non-structural carbohydrates accumulation and abscisic acid (ABA).The trees treated with SA showed changes on IAA and ABA dynamics, and an enhancement in RWC, gs, A, soluble proteins, and leaf P and Mg concentrations during the summer. Notably, KL and SA also allowed a faster restauration of the physiological functions during stress relief. In sum, KL and SA foliar sprays alleviated the negative effects induced by summer stress in olive trees performance, by modulation of distinct physiological and biochemical responses.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationBrito, Cátia; Dinis, Lia Tânia; Silva, Ermelinda; Gonçalves, Alexandre; Meijón, Mónica; Escandón, Mónica; Arrobas, Margarida; Rodrigues, M.A.; Moutinho-Pereira, José; Correia, Carlos (2019). Kaolin and salicylic acid alleviate summer stress in rainfed olive orchards by modulation of distinct physiological and biochemical responses. Scientia Horticulturae. ISSN 0304-4238. 246, p. 201-211en_EN
dc.identifier.doi10.1016/j.scienta.2018.10.059en_EN
dc.identifier.issn0304-4238
dc.identifier.urihttp://hdl.handle.net/10198/15677
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationEFEITO DA APLICAÇÃO DE CAULINO E ACIDO SALICILICO NA MITIGAÇÃO DO STRESS ESTIUAL EM OLIVEIRA
dc.subjectAdaptation strategiesen_EN
dc.subjectMineral nutritionen_EN
dc.subjectPhotosynthesisen_EN
dc.subjectPhytohormonesen_EN
dc.subjectSecondary metabolismen_EN
dc.titleKaolin and salicylic acid alleviate summer stress in rainfed olive orchards by modulation of distinct physiological and biochemical responsesen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEFEITO DA APLICAÇÃO DE CAULINO E ACIDO SALICILICO NA MITIGAÇÃO DO STRESS ESTIUAL EM OLIVEIRA
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F52543%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F04033%2F2013/PT
oaire.fundingStream5876
person.familyNameArrobas
person.familyNameRodrigues
person.givenNameMargarida
person.givenNameManuel Ângelo
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-5367-1129
person.identifier.ridO-1721-2016
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35270106800
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
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublicationd057ae6b-331c-4980-967d-0ce4fe1bcf8a
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication.latestForDiscovery43621353-fa11-4559-9b24-27eba5ad3de0
relation.isProjectOfPublicationdbcd02b9-c993-41a5-aa23-c40485fdc8ea
relation.isProjectOfPublication3acb07e1-8183-43b8-8dfc-c0187a8741be
relation.isProjectOfPublication.latestForDiscoverydbcd02b9-c993-41a5-aa23-c40485fdc8ea

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