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Symptom development in a susceptible sunflower line inoculated with Sunflower chlorotic mottle virus (SuCMoV) was followed in the second pair of leaves at different post-inoculation times: before symptom expression (BS), at early (ES) and late (LS) symptom expression. Sugar and starch increases and photoinhibition were observed as early effects BS, and were maintained or enhanced later on, however, chlorophyll loss was detected only at LS. Photoinhibition [ver mas...]
dc.contributor.authorRodriguez, Marianela
dc.contributor.authorTaleisnik, Edith
dc.contributor.authorLenardon, Sergio Luis
dc.contributor.authorLascano, Hernan Ramiro
dc.date.accessioned2021-12-17T19:19:41Z
dc.date.available2021-12-17T19:19:41Z
dc.date.issued2010-09-15
dc.identifier.issn0176-1617
dc.identifier.otherhttps://doi.org/10.1016/j.jplph.2010.03.004
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10932
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0176161710001215
dc.description.abstractSymptom development in a susceptible sunflower line inoculated with Sunflower chlorotic mottle virus (SuCMoV) was followed in the second pair of leaves at different post-inoculation times: before symptom expression (BS), at early (ES) and late (LS) symptom expression. Sugar and starch increases and photoinhibition were observed as early effects BS, and were maintained or enhanced later on, however, chlorophyll loss was detected only at LS. Photoinhibition correlated with a drastic decrease in D1 protein level. The progress of infection was accompanied by decreasing levels of apoplastic reactive oxygen species (ROS). In infected leaves, higher antioxidant enzyme activities (superoxide dismutase, SOD; ascorbate peroxidase, APX; glutathione reductase, GR) were observed from BS. The purpose of this work was to evaluate whether the early increases in carbohydrate accumulation may participate in SuCMoV symptom expression. Similar effects on photoinhibition, apoplastic ROS generation and antioxidant activity were generated when healthy leaves were treated with sugars. These results suggest that photoinhibitory processes and lower apoplastic superoxide levels induced by SuCMoV infection may be modulated by sugar increases.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Plant Physiology 167 (14) : 1137-1144 (September 2010)es_AR
dc.subjectOxidative Stresseng
dc.subjectReactive Oxygen Specieseng
dc.subjectSugareng
dc.subjectEstrés Oxidativoes_AR
dc.subjectEspecies de Oxígeno Reactivo
dc.subjectAzúcar
dc.subject.otherChloroplastic Proteinseng
dc.subject.otherSuCMoVes_AR
dc.subject.otherSunflowereng
dc.subject.otherGirasol
dc.titleAre Sunflower chlorotic mottle virus infection symptoms modulated by early increases in leaf sugar concentration?es_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: Taleisnik, Edith. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Taleisnik, Edith. 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. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales. Argentinaes_AR
dc.subtypecientifico


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