Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations
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 monit...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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2017
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/1302 http://www.sciencedirect.com/science/article/pii/S0981942815300346 https://doi.org/10.1016/j.plaphy.2015.06.011 |
| _version_ | 1855034781832577024 |
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| author | Gatica Hernandez, Ismaél Jairo Gabriel Gomez, Federico José Vicente Cerutti, Estela Soledad Arana, María Verónica Silva, María Fernanda |
| author_browse | Arana, María Verónica Cerutti, Estela Soledad Gatica Hernandez, Ismaél Jairo Gabriel Gomez, Federico José Vicente Silva, María Fernanda |
| author_facet | Gatica Hernandez, Ismaél Jairo Gabriel Gomez, Federico José Vicente Cerutti, Estela Soledad Arana, María Verónica Silva, María Fernanda |
| author_sort | Gatica Hernandez, Ismaél Jairo Gabriel |
| collection | INTA Digital |
| description | 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 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1302 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA13022018-01-15T12:09:08Z Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations Gatica Hernandez, Ismaél Jairo Gabriel Gomez, Federico José Vicente Cerutti, Estela Soledad Arana, María Verónica Silva, María Fernanda Melatonina Melatonin Plant Growth Substances Seed Viability Senescence Arabidopsis Thaliana Sustancias de Crecimiento Vegetal Viabilidad de la Semilla Avejentamiento UHPLC-MS/MS 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 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. Fil: Gatica Hernández, Ismaél Jairo Gabriel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina Fil: Gomez, Federico Jose Vicente. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina Fil: Cerutti, Estela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina Fil: Arana, María Verónica. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Silva, Maria Fernanda. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Mendoza. Instituto de Biologia Agricola de Mendoza; Argentina 2017-09-22T17:12:19Z 2017-09-22T17:12:19Z 2015-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1302 http://www.sciencedirect.com/science/article/pii/S0981942815300346 0981-9428 https://doi.org/10.1016/j.plaphy.2015.06.011 eng info:eu-repo/semantics/restrictedAccess application/pdf Plant physiology and biochemistry 94 : 191-196. (September 2015) |
| spellingShingle | Melatonina Melatonin Plant Growth Substances Seed Viability Senescence Arabidopsis Thaliana Sustancias de Crecimiento Vegetal Viabilidad de la Semilla Avejentamiento UHPLC-MS/MS Gatica Hernandez, Ismaél Jairo Gabriel Gomez, Federico José Vicente Cerutti, Estela Soledad Arana, María Verónica Silva, María Fernanda Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title | Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title_full | Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title_fullStr | Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title_full_unstemmed | Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title_short | Melatonin in Arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| title_sort | melatonin in arabidopsis thaliana acts as plant growth regulator at low concentrations and preserves seed viability at high concentrations |
| topic | Melatonina Melatonin Plant Growth Substances Seed Viability Senescence Arabidopsis Thaliana Sustancias de Crecimiento Vegetal Viabilidad de la Semilla Avejentamiento UHPLC-MS/MS |
| url | http://hdl.handle.net/20.500.12123/1302 http://www.sciencedirect.com/science/article/pii/S0981942815300346 https://doi.org/10.1016/j.plaphy.2015.06.011 |
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