Show simple item record

resumen

Abstract
Blumeria graminis (Bgt) is a pathogenic fungus that affects severally wheat plants provoking high losses in wheat production. Biochemical parameters like enzyme activity of catalase, superoxide dismutase, or peroxidases can be used to detect changes of metabolism in response to pathogen infection. We evaluated different biochemical and biometrics parameters to assess the effect of silicon, a widely recognized beneficial nutrient, in wheat infected [ver mas...]
dc.contributor.authorMoldes, Carlos Alberto
dc.contributor.authorLima Filho, Oscar Fontão de
dc.contributor.authorMerini, Luciano J.
dc.contributor.authorTsai, Siu M.
dc.contributor.authorCamiña, José Manuel
dc.date.accessioned2018-12-13T12:59:23Z
dc.date.available2018-12-13T12:59:23Z
dc.date.issued2016-08
dc.identifier.issn0137-5881
dc.identifier.issn1861-1664 (Online)
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4075
dc.description.abstractBlumeria graminis (Bgt) is a pathogenic fungus that affects severally wheat plants provoking high losses in wheat production. Biochemical parameters like enzyme activity of catalase, superoxide dismutase, or peroxidases can be used to detect changes of metabolism in response to pathogen infection. We evaluated different biochemical and biometrics parameters to assess the effect of silicon, a widely recognized beneficial nutrient, in wheat infected naturally with Bgt. Integral study and interpretation of results obtained by multivariate analysis is the challenge of present work. Wheat plants growing in hydroponic solution were fertilized with increasing concentration of silicon. Responses of wheat plants to silicon treatments were assessed through the analysis of lipid peroxidation and antioxidant enzymes activity (catalase, ascorbate peroxidase and superoxide dismutase). Furthermore, biometric measures such as Pathogen Index, dry weight of shoot and roots, tiller height, spike length, spike mass, grain number and grain mass production were assessed. Pathogen Index decreased while mass and number of grain, dry weight of shoots were significantly increased, proportionally to silicon concentration increasing in culture media; biochemical parameters were also influenced by the concentration of silicon. Multivariate analysis indicated correspondence between increase of silicon treatments and decrease of antioxidant activities of APX, CAT and SOD. Relationships between the applied doses of silicon and decreasing Bgt expansion in foliar surfaces were also observed. Chemometrics proved to be an optimal tool for integrating data about metabolic status and demonstrate, in present case, that increasing concentration of silicon and the reduction of antioxidant enzyme activity are closely related to decreasing of powdery mildew disease.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherSpringereng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceActa physiologiae plantarum 38 : 206. (August 2016)eng
dc.subjectTrigoes_AR
dc.subjectWheateng
dc.subjectTriticum Aestivumes_AR
dc.subjectSilicioes_AR
dc.subjectSiliconeng
dc.subjectMildiues_AR
dc.subjectMildewseng
dc.subjectBlumeria Graminises_AR
dc.subject.otherChemometricseng
dc.subject.otherPLS-DAeng
dc.titleOccurrence of powdery mildew disease in wheat fertilized with increasing silicon doses: a chemometric analysis of antioxidant responseeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Anguiles_AR
dc.description.filFil: Moldes, Carlos Alberto. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentinaes_AR
dc.description.filFil: Lima Filho, Oscar Fontão de. Empresa Brasileira de Pesquisa Agropecuária Oeste; Brasiles_AR
dc.description.filFil: Merini, Luciano J. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil. Laboratorio de Malezas y Herbicidas; Argentinaes_AR
dc.description.filFil: Tsai, Siu M. Universidade de Sao Paulo. Centro de Energia Nuclear na Agricultura; Brasiles_AR
dc.description.filFil: Camiña, José Manuel. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record