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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
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dc.contributor.author | Rodriguez, Marianela | |
dc.contributor.author | Muñoz, Nacira Belen | |
dc.contributor.author | Lenardon, Sergio Luis | |
dc.contributor.author | Lascano, Hernan Ramiro | |
dc.date.accessioned | 2018-11-28T15:23:49Z | |
dc.date.available | 2018-11-28T15:23:49Z | |
dc.date.issued | 2013 | |
dc.identifier.issn | 1351-0002 | |
dc.identifier.issn | 1743-2928 | |
dc.identifier.other | https://doi.org/10.1179/1351000212Y.0000000035 | |
dc.identifier.uri | https://www.tandfonline.com/doi/full/10.1179/1351000212Y.0000000035 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/3985 | |
dc.description.abstract | 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 (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.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Taylor & Francis | es_AR |
dc.rights | info:eu-repo/semantics/openAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
dc.source | Redox Report 18 (1) : 27-35 (2013) | es_AR |
dc.subject | Helianthus Annuus | es_AR |
dc.subject | Virus de las Plantas | es_AR |
dc.subject | Plant Viruses | eng |
dc.subject | Metabolitos | es_AR |
dc.subject | Metabolites | eng |
dc.subject | Expresión Génica | es_AR |
dc.subject | Gene Expression | eng |
dc.subject | Potencial Redox | es_AR |
dc.subject | Redox Potential | eng |
dc.subject | Azúcar | es_AR |
dc.subject | Sugar | eng |
dc.subject.other | Girasol | es_AR |
dc.subject.other | Virus del Moteado Clorótico del Girasol | es_AR |
dc.title | Redox-related metabolites and gene expression modulated by sugar in sunflower leaves: similarities with Sunflower chlorotic mottle virus-induced symptom | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
dc.description.origen | Instituto de Fisiología y Recursos Genéticos Vegetales | es_AR |
dc.description.fil | Fil: Rodriguez, Marianela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina | es_AR |
dc.description.fil | Fil: 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; Argentina | es_AR |
dc.description.fil | Fil: Lenardon, Sergio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: 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; Argentina | es_AR |
dc.subtype | cientifico |
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