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Influence of nutrient availability on drought-induced changes in the activity of antioxidant enzymes in sunflower leaves

2006Conference object Open Access
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dc.contributor.authorDavid, Maria Manuela
dc.contributor.authorBarrote, Isabel
dc.contributor.authorCorreia, Maria João
dc.date.accessioned2012-04-14T12:45:47Z
dc.date.available2012-04-14T12:45:47Z
dc.date.issued2006
dc.date.updated2012-04-13T14:21:23Z
dc.description.abstractWe aimed to evaluate if plants with different nutrient availability evidenced a different capacity to overcome drought-induced oxidative stress. Membrane peroxidative damages as MDA concentration and the activity of several antioxidant enzymes were determined in leaves of well watered (WW) and water stressed (WS) H. annuus plants grown either with adequate (Adeq Nutr) or limited (Limit Nutr) nutrient regimes. Constitutive capacity to eliminate ROS was not overall changed by growing plants with different nutrient supply regimes, but a diverse enzyme-dependent response was observed. In response to drought SOD and DHAR activity increased only in plants with limited nutrient supply, while in plants with adequate nutrient supply the activity of these enzymes did not change and were constitutively higher, but the activity APX increased by 50%. The subtle observed changes in the activity of the antioxidant enzymes are discussed, given that no oxidative damage was observed.por
dc.identifier.citationDavid, Maria Manuela; Barrote, Isabel; Correia, Maria João. Influence of nutrient availability on drought-induced changes in the activity of antioxidant enzymes in sunflower leaves. Trabalho apresentado em VIII Simposium Hispano Portugués de Relaciones Hídricas en las Plantas. In Actas del VIII Simposium Hispano-Portugués de Relaciones Hídricas en las Plantas, Puerto de la Cruz, 2006.por
dc.identifier.issn84-690-0174-4
dc.identifier.otherAUT: MDA00369; IBA00639; JCO00381;
dc.identifier.urihttp://hdl.handle.net/10400.1/1031
dc.language.isoengpor
dc.peerreviewedyespor
dc.subjectStress hídricopor
dc.subjectHelianthus annuuspor
dc.subjectStress oxidativopor
dc.subjectDeficiência em nutrientespor
dc.titleInfluence of nutrient availability on drought-induced changes in the activity of antioxidant enzymes in sunflower leavespor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePuerto de la Cruzpor
oaire.citation.titleActas del VIII Simposium Hispano-Portugués de Relaciones Hídricas en las Plantaspor
person.familyNameDavid
person.familyNameBarrote
person.givenNameMaria Manuela
person.givenNameIsabel
person.identifier.ciencia-idE31B-16E0-7562
person.identifier.ciencia-id801C-0AE4-B5CA
person.identifier.orcid0000-0001-6251-7222
person.identifier.orcid0000-0002-0922-0259
person.identifier.ridN-8024-2013
person.identifier.scopus-author-id7402103697
person.identifier.scopus-author-id8659654200
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicationb4ac527b-f4a2-4983-b98c-f5614f59dd49
relation.isAuthorOfPublication8027b4d2-ee8d-4432-be75-7a2342a905a8
relation.isAuthorOfPublication.latestForDiscoveryb4ac527b-f4a2-4983-b98c-f5614f59dd49

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