Effects of transgenic on root development, leaf morphology and stress resistance.

To identify the function of the gene and its response to salt and drought stress, the gene was transformed into by the Agrobacterium-mediated leaf disc method, and the phenotypic, physiological changes and related genes expression of transgenic lines were analyzed. The results showed that the number and length of roots of transgenic lines increased significantly. The leaves of transgenic lines curled inward. Under salt and simulated drought stress, the transgenic lines showed improved tolerance to salt and drought. The activities of SOD, POD, CAT and proline content in the transgenic lines were significantly increased, and the reduction rates of total chlorophyll and MDA content were significantly decreased, which indicated that the transgenic lines showed strong physiological responses under stress. Meanwhile, the gene expression of , , and were significantly upregulated, and the gene expression of was significantly downregulated, which preliminarily verified the stress regulation mechanism that might activate. The above results showed that the gene could promote root development, make leaf morphology curl, and enhance tolerance to stress.