Abstract:
Novel gibberellin 2-oxidase (GA2ox) genes were identified. GA2ox5, GA2ox6 and GA2ox9 were three genes encoding class C20 GA2oxs in rice. Mutations in the conserved domain III were found to affect the physiological activity of class C20 GA2oxs. Mutants or transgenic rice overexpressing GA2oxs exhibited increased tolerance to multiple stresses. Methods are described for enhancing stress tolerance by overexpressing GA2ox in the plant.
Abstract:
A method of making a transgenic plant by transforming into a host plant a recombinant DNA construct that expresses in the transgenic plant a rice polypeptide and the transgenic plant thus produced.