dc.creatorGatica Hernandez, Ismaél Jairo Gabriel
dc.creatorGomez, Federico José Vicente
dc.creatorCerutti, Estela Soledad
dc.creatorArana, María Verónica
dc.creatorSilva, María Fernanda
dc.date.accessioned2017-09-22T17:12:19Z
dc.date.accessioned2023-03-15T13:52:22Z
dc.date.available2017-09-22T17:12:19Z
dc.date.available2023-03-15T13:52:22Z
dc.date.created2017-09-22T17:12:19Z
dc.date.issued2015-09
dc.identifier0981-9428
dc.identifierhttps://doi.org/10.1016/j.plaphy.2015.06.011
dc.identifierhttp://hdl.handle.net/20.500.12123/1302
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0981942815300346
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6204730
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.
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcePlant physiology and biochemistry 94 : 191-196. (September 2015)
dc.subjectMelatonina
dc.subjectMelatonin
dc.subjectPlant Growth Substances
dc.subjectSeed Viability
dc.subjectSenescence
dc.subjectArabidopsis Thaliana
dc.subjectSustancias de Crecimiento Vegetal
dc.subjectViabilidad de la Semilla
dc.subjectAvejentamiento
dc.titleMelatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución