AtCBF1 Overexpression Confers Tolerance to High Light Conditions at Warm Temperatures in Potato Plants
We characterized transcriptional responses of potato plants to multiple abiotic stresses and used this information to identify potential mechanisms through which overexpression of the stress related transcription factor CBF1 from Arabidopsis thaliana (AtCBF1) confers multiple stress tolerance. Most...
| Autores: | , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/17481 |
| Acceso en línea: | http://hdl.handle.net/11336/17481 |
| Access Level: | acceso abierto |
| Palabra clave: | Cbf1 Transgenic Plants Drought Temperature https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Sumario: | We characterized transcriptional responses of potato plants to multiple abiotic stresses and used this information to identify potential mechanisms through which overexpression of the stress related transcription factor CBF1 from Arabidopsis thaliana (AtCBF1) confers multiple stress tolerance. Most transcriptional changes were specific to each condition, but genes involved in phenyl-propanoid biosynthesis were affected by all abiotic stresses evaluated. Interestingly, over-expression of AtCBF1 in potato plants not only conferred tolerance to low temperatures, as previously reported, but also to high-light conditions at 22 °C, suggesting that it confers multiple stress tolerance by enhancing the ability of plants to cope with an excess of radiant energy. Finally, we found that transcriptional changes triggered by abiotic stress were much larger than those resulting from AtCBF1 over-expression in potato, revealing that overexpression of an heterologous transcription factor causes minor alterations in the plant transcriptome in comparison to transcriptional changes triggered by abiotic stresses. |
|---|