Relationship between aquaporins expression and B concentration for conferring cold stress tolerance in broccoli cultivars
Broccoli is an important crop worldwide with numerous nutritional benefits. Three cultivars (Naxos, Triton and Mykonos) grown in the winter in Spain and highly throughout Europe has been investigated, since they have to deal with the great variation in temperature between day and night and often suf...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/257636 |
| Acceso en línea: | http://hdl.handle.net/10261/257636 |
| Access Level: | acceso abierto |
| Palabra clave: | Broccoli Cold tolerance Aquaporins Water relations Boron Physiological response |
| Sumario: | Broccoli is an important crop worldwide with numerous nutritional benefits. Three cultivars (Naxos, Triton and Mykonos) grown in the winter in Spain and highly throughout Europe has been investigated, since they have to deal with the great variation in temperature between day and night and often suffers from night frosts. As, there is no physiological or molecular studies that allows to elucidate the mechanisms involved in its ability to resist cold, in this study, we seek to determine the mineral content, water relations and gas exchange response, together with aquaporins expression in the three different cultivars of broccoli against a recurring temperature of 4 °C at night. A clear cause-effect relationship is shown regarding the control of aquaporins and the ability to deal with cold stress, as well as the importance of boron in this process in broccoli. Specifically, the expression of aquaporins in each cultivar showed different patterns according to the three different strategies utilized to cope with cold stress, but the cultivars adapted to the cold showed high levels of aquaporins expression after a low temperature treatment. Furthermore, aquaporin NIP6 seems to be decisive for maintaining adequate boron levels in the leaves in accordance to resistance to cold conditions. |
|---|