Glycogen biosynthetic enzymes in plants
AssigneeCalgene, Inc.
InventorsDavid M. Stalker, Christine K. Shewmaker
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Abstract
The present invention is directed to the modification of reserve polysaccharides in plants. Specifically, it has been found that host plants can be successfully transformed with a nucleic acid sequence capable of expressing a chimeric reserve polysaccharide modification enzyme gene sequence which will synthesize novel reserve polysaccharides in plants or convert the transformed plant's endogenous starch reserves to novel starch degradation products.
Claims34
A nucleic acid construct comprising a chimeric gene which is expressed in plant cells, said chimeric gene comprising a nucleotide sequence encoding a glycogen synthase enzyme operably linked with a promoter which is operable in a plant cell.
A method to modify a starch storage organ comprising growing a plant host under conditions which permit the formation of a starch storage organ, having in its genome a nucleic acid construct which is capable of expressing a chimeric gene, said chimeric gene comprising a nucleotide sequence encoding a glycogen synthase enzyme operably linked to a promoter which is operable in said starch storage organ.
Dependencies are inferred from the claim text.