How Mediterranean plant species are able to cope with increasing levels of UV-B radiation and drought in the context of climate change?
Climatic models predict higher fluxes of UV-B radiation and a decrease in summer precipitation in the near future for the Mediterranean region. The UV radiation can be an oxidative stress factor for plants affecting their physiological activity and morphology. In this context, we aim to investigate...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/120560 |
| Acceso en línea: | http://hdl.handle.net/10803/120560 http://mediaserver.csuc.cat/tdx/documents/14/64/39/146439650720911699523324224137053798511/ |
| Access Level: | acceso abierto |
| Palabra clave: | Ultraviolet radiation Radiació ultraviolada Radiación ultravioleta UV Drought Sequera Sequía Mediterranean Mediterrani Mediterráneo Plants Plantes Plantas 504 574 58 |
| Sumario: | Climatic models predict higher fluxes of UV-B radiation and a decrease in summer precipitation in the near future for the Mediterranean region. The UV radiation can be an oxidative stress factor for plants affecting their physiological activity and morphology. In this context, we aim to investigate the effects of UV (as UV-A as UV-B) radiation on Mediterranean woody species and its interaction with low water availability. The results showed that UV-A supplementation caused an increase in the plant biomass of some species when plants were grown under a low water supply. This beneficial effect on plant biomass seemed to be mediated by an improvement of plant water relations. Increases in leaf sclerophylly or leaf thickness, depending on the experiment, in response to enhanced UV radiation might have contributed to the amelioration of plant water deficit |
|---|