Transgenic plants expressing a dual-specificity MAPK phosphatase and uses thereof

摘要

Disclosed are transgenic plants which include a transgene which expresses a phosphatase domain of a dual-specificity mitogen-activated protein kinase (MAPK) phosphatase, wherein the transgene is expressed in the transgenic plant under the control of a promoter that is functional in a plant cell. Also disclosed are methods which are useful for modifying the phenotype of a plant, including the steps of: (a) introducing into a plant cell a transgene comprising DNA encoding a phosphatase domain of a dual-specificity mitogen-activating protein kinase (MAPK) phosphatase operably linked to a promoter functional in plant cells to yield a transformed plant cell; and (b) regenerating a transgenic plant from the transformed cells, wherein the phosphatase domain of the dual-specificity MAPK phosphatase is expressed in the cells of the transgenic plant, thereby modifying the phenotype of the transgenic plant.