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resumen

Resumen
Sugars are part of an integrated redox system, since they are key regulators of respiration and photosynthesis, and therefore of the levels of reducing power, ATP and ROS. These elements are major determinants of the cellular redox state, which is involved in the perception and regulation of many endogenous and environmental stimuli. Our previous findings suggested that early sugar increase produced during compatible Sunflower chlorotic mottle virus [ver mas...]
dc.contributor.authorRodriguez, Marianela
dc.contributor.authorMuñoz, Nacira Belen
dc.contributor.authorLenardon, Sergio Luis
dc.contributor.authorLascano, Hernan Ramiro
dc.date.accessioned2018-11-28T15:23:49Z
dc.date.available2018-11-28T15:23:49Z
dc.date.issued2013
dc.identifier.issn1351-0002
dc.identifier.issn1743-2928
dc.identifier.otherhttps://doi.org/10.1179/1351000212Y.0000000035
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1179/1351000212Y.0000000035
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3985
dc.description.abstractSugars are part of an integrated redox system, since they are key regulators of respiration and photosynthesis, and therefore of the levels of reducing power, ATP and ROS. These elements are major determinants of the cellular redox state, which is involved in the perception and regulation of many endogenous and environmental stimuli. Our previous findings suggested that early sugar increase produced during compatible Sunflower chlorotic mottle virus (SuCMoV) infection might modulate chlorotic symptom development through redox state alteration in sunflower. The purpose of this work was to characterize redox-related metabolites and gene expression changes associated with high sugar availability and symptom development induced by SuCMoV. The results show that sugar caused an increase in glutathione, ascorbate, pyridine nucleotides, and ATP. In addition, higher sugar availability reduced hydrogen peroxide and ΦPSII. This finding suggests that high sugar availability would be associated with cellular redox alteration and photoinhibitory process. The expression of the genes analyzed was also strongly affected by sugar, such as the down-regulation of psbA and up-regulation of psbO and cp29. The expression level of cytoplasmic (apx-1 and gr)- and chloroplastic (Fe-sod)-targeted genes was also significantly enhanced in sugar-treated leaves. Therefore, all these responses suggest that sugars induce chloroplastic redox state alteration with photoinhibition process that could be contributing to chlorotic symptom development during SuCMoV infection.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherTaylor & Francises_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourceRedox Report 18 (1) : 27-35 (2013)es_AR
dc.subjectHelianthus Annuuses_AR
dc.subjectVirus de las Plantases_AR
dc.subjectPlant Viruseseng
dc.subjectMetabolitoses_AR
dc.subjectMetaboliteseng
dc.subjectExpresión Génicaes_AR
dc.subjectGene Expressioneng
dc.subjectPotencial Redoxes_AR
dc.subjectRedox Potentialeng
dc.subjectAzúcares_AR
dc.subjectSugareng
dc.subject.otherGirasoles_AR
dc.subject.otherVirus del Moteado Clorótico del Girasoles_AR
dc.titleRedox-related metabolites and gene expression modulated by sugar in sunflower leaves: similarities with Sunflower chlorotic mottle virus-induced symptomes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.description.origenInstituto de Fisiología y Recursos Genéticos Vegetaleses_AR
dc.description.filFil: Rodriguez, Marianela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentinaes_AR
dc.description.filFil: Muñoz, Nacira Belen. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentinaes_AR
dc.description.filFil: Lenardon, Sergio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentinaes_AR
dc.description.filFil: Lascano, Hernan Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentinaes_AR
dc.subtypecientifico


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