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Abstract
Systemic infections are commonly associated with changes in host metabolism and gene expression. Sunflower chlorotic mottle virus (SuCMoV) causes systemic infection with sugar increase, photoinhibition and increase in antioxidant enzyme activities before chlorotic symptom appearance in sunflower leaves. The aim of this study was to determine if chlorotic symptom development induced by SuCMoV infection is accompanied by changes in different redox-related [ver mas...]
dc.contributor.authorRodriguez, Marianela
dc.contributor.authorMuñoz, Nacira Belen
dc.contributor.authorLenardon, Sergio Luis
dc.contributor.authorLascano, Hernan Ramiro
dc.date.accessioned2021-11-29T12:44:52Z
dc.date.available2021-11-29T12:44:52Z
dc.date.issued2012-08-18
dc.identifier.issn0168-9452
dc.identifier.otherhttps://doi.org/10.1016/j.plantsci.2012.08.008
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10790
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0168945212001665
dc.description.abstractSystemic infections are commonly associated with changes in host metabolism and gene expression. Sunflower chlorotic mottle virus (SuCMoV) causes systemic infection with sugar increase, photoinhibition and increase in antioxidant enzyme activities before chlorotic symptom appearance in sunflower leaves. The aim of this study was to determine if chlorotic symptom development induced by SuCMoV infection is accompanied by changes in different redox-related metabolites and transcripts. Symptom development was analyzed in the second pair of leaves (systemic infection) at different post-inoculation times: before symptom appearance (BS, 4 dpi), and at an early (ES, 7 dpi) and later stage (LS, 12 dpi) of symptom expression. The results showed that the virus reaches the second pair of leaves at 4 dpi. A positive correlation between chlorotic symptom and number of viral copies was also observed. Changes in hydrogen peroxide, glutathione, pyridine nucleotides and ATP content were observed since symptom appearance (ES, 7 dpi). The expression of some of the genes analyzed was also strongly affected by SuCMoV infection. Specifically, down-regulation of both chloroplast-encoded genes and chloroplast-targeted genes: psbA, rbcS, Cu/Zn sod, Fe sod, phosphoglycolate phosphatase, psbO, psaH and fnr was present, whereas the expression of cytoplasmic-targeted genes, apx1, and Cu/Zn sod was up-regulated. Mitochondrial Mn sod decreased at BS stage and aox decreased only at ES stage. Peroxisomal catalase (cat-2) was lower at BS and LS stages. All these results suggest that SuCMoV infection induces progressive changes in determinants of redox homeostasis associated with chlorotic symptom development.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePlant Science 196 : 107-116 (November 2012)es_AR
dc.subjectGene Expressioneng
dc.subjectHelianthus Annuuses_AR
dc.subjectExpresión Génicaes_AR
dc.subjectEnfermedades de las Plantas
dc.subjectPlant Diseaseseng
dc.subject.otherRedox Stateeng
dc.subject.otherSymptom Developmenteng
dc.subject.otherSuCMoVes_AR
dc.subject.otherSunflowereng
dc.subject.otherGirasoles_AR
dc.titleThe chlorotic symptom induced by Sunflower chlorotic mottle virus is associated with changes in redox-related gene expression and metaboliteses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
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; Argentinaes_AR
dc.description.filFil: Lenardon, Sergio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentinaes_AR
dc.subtypecientifico


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