SUPPRESSION OF ALPHA-AMYLASE AND PROTEASE EXPRESSION USING A SERINE/THREONINE PROTEIN KINASE

摘要

The invention is directed to methods of altering the expresion of alpha-amylase and proteases without hormones, by altering the expression of protein kinases. In plants, suppression of alpha-amylase and proteases is achieved in the absence of abscisic acid by increasing the expression of protein kinases of the serine/threonine group, such as PKABA1, an abscisic acid (ABA)-responsive protein kinase. Increasing the expression of PKABA1 can be achieved by transforming the plant with a DNA sequence encoding at least one polypeptide having a PKABA1 protein kinase activity linked to a suitable promoter.