   1.8.5.1 | agriculture |
study on single chromosome substitution lines of cv. Chinese Spring carrying separate chromosomes from the donor Synthetic 6x, an artificial hexaploid combining the genomes of the two wild species, Triticum dicoccoides, AABB, and Aegilops tauschii, DD. The lines carrying a synthetic hexaploid homologous pair of chromosomes 1B, 1D, 2D, 3D or 4D all express a low constitutive level of dehydroascorbate reductase and the lines carrying chromosomes 3B, 1D, 2D and 3D a low constitutive level of catalyse. All are able to increase this level by fourfold for dehydroascorbate reductase and by 1.5-fold for catalyase in response to stress caused by water deficit. When challenged by drought stress, these lines tend to be the most effective in retaining the water status of the leaves and preventing the grain yield components from being compromised |
723890 |
