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Resumen
Since the discovery of melatonin in plants, several roles have been described for different species, organs, and developmental stages. Arabidopsis thaliana, being a model plant species, is adequate to contribute to the elucidation of the role of melatonin in plants. In this work, melatonin was monitored daily by UHPLC-MS/MS in leaves, in order to study its diurnal accumulation as well as the effects of natural and artificial light treatments on its [ver mas...]
dc.contributor.authorGatica Hernandez, Ismaél Jairo Gabriel
dc.contributor.authorGomez, Federico José Vicente
dc.contributor.authorCerutti, Estela Soledad
dc.contributor.authorArana, María Verónica
dc.contributor.authorSilva, María Fernanda
dc.date.accessioned2017-09-22T17:12:19Z
dc.date.available2017-09-22T17:12:19Z
dc.date.issued2015-09
dc.identifier.issn0981-9428
dc.identifier.otherhttps://doi.org/10.1016/j.plaphy.2015.06.011
dc.identifier.urihttp://hdl.handle.net/20.500.12123/1302
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0981942815300346
dc.description.abstractSince the discovery of melatonin in plants, several roles have been described for different species, organs, and developmental stages. Arabidopsis thaliana, being a model plant species, is adequate to contribute to the elucidation of the role of melatonin in plants. In this work, melatonin was monitored daily by UHPLC-MS/MS in leaves, in order to study its diurnal accumulation as well as the effects of natural and artificial light treatments on its concentration. Furthermore, the effects of exogenous application of melatonin to assess its role in seed viability after heat stress and as a regulator of growth and development of vegetative tissues were evaluated. Our results indicate that melatonin contents in Arabidopsis were higher in plants growing under natural radiation when compared to those growing under artificial conditions, and its levels were not diurnally-regulated. Exogenous melatonin applications prolonged seed viability after heat stress conditions. In addition, melatonin applications retarded leaf senescence. Its effects as growth promoter were dose and tissue–dependent; stimulating root growth at low concentrations and decreasing leaf area at high doses.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourcePlant physiology and biochemistry 94 : 191-196. (September 2015)
dc.subjectMelatoninaes_AR
dc.subjectMelatonineng
dc.subjectArabidopsis Thaliana
dc.subjectSustancias de Crecimiento Vegetal
dc.subjectPlant Growth Substanceseng
dc.subjectViabilidad de la Semilla
dc.subjectSeed Viabilityeng
dc.subjectAvejentamiento
dc.subjectSenescenceeng
dc.subject.otherUHPLC-MS/MSeng
dc.titleMelatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrationseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.filFil: Gatica Hernández, Ismaél Jairo Gabriel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina
dc.description.filFil: Gomez, Federico Jose Vicente. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina
dc.description.filFil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina
dc.description.filFil: Arana, María Verónica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
dc.description.filFil: Silva, Maria Fernanda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina
dc.subtypecientifico


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