Carrot (Daucus carota L.).
Back to previous page
| Authors: | Wally O, Jayaraman J, Punja ZK. |
| Year: | 2006 |
| Journal: | Methods Mol Biol. 2006;344:3-12. |
| Title: | Carrot (Daucus carota L.). |
| Abstract: | Plants are susceptible to infection by a broad range of fungal pathogens. Many horticulturally important crop species lack adequate genetic resistance to disease. Studies on potential mechanisms of disease resistance in plants have revealed the importance of a range of pathogenesis-related (PR) proteins with antifungal activity in reducing colonization of plant tissues by pathogens. We are evaluating a range of PR-proteins, through heterologous expression in transgenic carrot tissues, for their effects on fungal disease development. The protocols for carrot transformation with a thaumatin-like protein are described. In addition, the use of herbicide resistance as a selectable marker in carrot transformation is illustrated. In this protocol, petiole segments from carrot seedlings are exposed to Agrobacterium for 10-30 min and co-cultivated for 3 d, after which herbicide selection is imposed until embryogenic calli are produced after 8-12 wk. The transfer of the embryogenic calli to hormone-free medium yields transgenic plantlets. This genetic transformation protocol has supported the generation of transgenic carrot plants with defined T-DNA inserts at the rate of between 1 and 3 Southern positive independent events out of 100. |
Please send suggestions for improving this publication database to
sass-support@sfu.ca.
Departmental members may update their publication list.