Biochemical and molecular changes in response to aluminium-stress in highbush blueberry (<i>Vaccinium corymbosum</i> L.)

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dc.contributor.authorInostroza-Blancheteau, Claudio
dc.contributor.authorReyes-Diaz, Marjorie
dc.contributor.authorAquea, Felipe
dc.contributor.authorNunes-Nesi, Adriano
dc.contributor.authorAlberdi, Miren
dc.contributor.authorArce-Johnson, Patricio
dc.date.accessioned2025-01-21T00:00:35Z
dc.date.available2025-01-21T00:00:35Z
dc.date.issued2011
dc.description.abstractAluminium (Al) stress is an important factor limiting crop yields in acid soils. Despite this, very little is known about the mechanisms of resistance to this stress in woody plants. To understand the mechanisms of Al-toxicity and response in blueberries, we compared the impact of AI-stress in Al-resistant and AI-sensitive genotypes using Vaccinium corymbosum L. (Ericaceae) as a plant model. We investigated the effect of Al-stress on the physiological performance, oxidative metabolism and expression of genes that encode antioxidant enzymes in two V. corymbosum cultivars maintained hydroponically with AlCl3 (0 and 100 mu M). Microscopic analyses of AI-treated root tips suggested a higher degree of Al-induced morphological injury in Bluegold (sensitive genotype) compared to Brigitta (resistant genotype). Furthermore, the results indicated that Brigitta had a greater ability to control oxidative stress under Al-toxicity, as reflected by enhancement of several antioxidative and physiological properties (radical scavenging activity: RSA, superoxide dismutase: SOD and catalase: CAT; maximum quantum yield: Fv/Fm, effective quantum yield: 04)511, electron transport rate: ETR and non-photochemical quenching: NPQ). Finally, we analyzed the expression of genes homologous to GST and ALDH, which were identified in a global expression analysis. In the resistant genotype, the expression of these genes in response to Al-stress was greater in leaves than in roots. (C) 2011 Elsevier Masson SAS. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.plaphy.2011.04.009
dc.identifier.eissn1873-2690
dc.identifier.issn0981-9428
dc.identifier.urihttps://doi.org/10.1016/j.plaphy.2011.04.009
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95348
dc.identifier.wosidWOS:000295072800009
dc.issue.numero9
dc.language.isoen
dc.pagina.final1012
dc.pagina.inicio1005
dc.revistaPlant physiology and biochemistry
dc.rightsacceso restringido
dc.subjectBlueberry
dc.subjectAluminium-stress
dc.subjectAntioxidant genes
dc.subjectFluorescence parameters
dc.subject.ods02 Zero Hunger
dc.subject.odspa02 Hambre cero
dc.titleBiochemical and molecular changes in response to aluminium-stress in highbush blueberry (<i>Vaccinium corymbosum</i> L.)
dc.typeartículo
dc.volumen49
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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