Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity
Fuente:
Redalyc
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidade Estadual de Maringá
2015
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1876439327630688256 |
|---|---|
| author | Cristiane Dantas de Brito |
| author_facet | Cristiane Dantas de Brito |
| contents | Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity Cristiane Dantas de Brito Marta Bruno Loureiro Clarissa Abreu Santos Teles Mariane Ruzza Schuck Luzimar Gonzaga Fernandez Renato Delmondez de Castro Agrociencias PEG tubulin Physic nut germination microtubules Jatropha curcas is an oil-rich Euphorbiaceae seed spec ies renowned for its apparent tolerance to environmental stresses. It is considered a pro mising source of renewabl e feedstock for biodiesel production in the Brazilian semiarid region where cr op establishment requires a better understanding of the mechanisms leading to proper seed and plant beha vior under water restrictive conditions. This study describes physiological and cytological profiles of J. curcas seeds imbibed in water restriction conditions by means of osmotic stress or osmoconditioning. Seeds were characterized by size, weight, moisture content and dry mass, germinability, and cell cycle activation by means of tubulin and microtubule cytoskeleton accumulation. Osmoconditioning at -0.8 MPa did no t induce priming effects as it did not improve the physiological quality of the seed lots. Western blo tting and immunocytochemical analysis revealed an increasing accumulation of tubulin and microtubule cytoskeleton in seeds imbibed in water for 48h onwards, culminating in the onset of mitotic configurat ions after germination. Only cortical microtubules were observed during seed osmo conditioning, whereas mitotic microtubules only occurred after re- imbibition of osmoconditioned seeds in water and subsequent germination. 2015 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303041016002 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.3 Vol.37 |
| format | Artículo científico |
| id | redalyc_303041016002 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity Cristiane Dantas de Brito Agrociencias PEG tubulin Physic nut germination microtubules Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity Cristiane Dantas de Brito Marta Bruno Loureiro Clarissa Abreu Santos Teles Mariane Ruzza Schuck Luzimar Gonzaga Fernandez Renato Delmondez de Castro Agrociencias PEG tubulin Physic nut germination microtubules Jatropha curcas is an oil-rich Euphorbiaceae seed spec ies renowned for its apparent tolerance to environmental stresses. It is considered a pro mising source of renewabl e feedstock for biodiesel production in the Brazilian semiarid region where cr op establishment requires a better understanding of the mechanisms leading to proper seed and plant beha vior under water restrictive conditions. This study describes physiological and cytological profiles of J. curcas seeds imbibed in water restriction conditions by means of osmotic stress or osmoconditioning. Seeds were characterized by size, weight, moisture content and dry mass, germinability, and cell cycle activation by means of tubulin and microtubule cytoskeleton accumulation. Osmoconditioning at -0.8 MPa did no t induce priming effects as it did not improve the physiological quality of the seed lots. Western blo tting and immunocytochemical analysis revealed an increasing accumulation of tubulin and microtubule cytoskeleton in seeds imbibed in water for 48h onwards, culminating in the onset of mitotic configurat ions after germination. Only cortical microtubules were observed during seed osmo conditioning, whereas mitotic microtubules only occurred after re- imbibition of osmoconditioned seeds in water and subsequent germination. 2015 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303041016002 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.3 Vol.37 |
| title | Behavior of Jatropha curcas L. seeds under osmotic stress: germination and cell cycle activity |
| topic | Agrociencias PEG tubulin Physic nut germination microtubules |
| url | https://www.redalyc.org/articulo.oa?id=303041016002 |