Other

Hoechst Schering Agrevo Gmbh

Ivar Virgin

Jens Kossmann

Michael Emmermann

Andreas Renz

The invention describes DNA molecules which code for plant proteins having the biological activity of a debranching enzyme. Furthermore described are transgenic plant cells and plants having reduced or increased debranching enzyme activity, as well as modified starch isolatable from the cells and plants.

DNA molecules coding for debranching enzymes derived from plants

The present invention relates to DNA sequences which, on the codogenic strand, code plant debranching enzymes whose transcripts formed in transgenic plants code new proteins with the enzymatic activity of debranching enzymes which in transgenic plants reduce the degree of branching of amylopectin starch. The invention also relates to DNA sequences which on the codogenic strand code plant debranching enzymes whose transcripts formed in transgenic plants prevent the synthesis of proteins with the enzymatic activity of debranching enzymes, which in transgenic plants increases the degree of branching of amylopectin starch, and also to recombinant plasmids on which these DNA sequences are localized and which can be introduced into plant cells and plants.

Debranching enzymes and DNA sequences coding them, suitable for changing the degree of branching of amylopectin starch in plants

Combination of DNA sequences which enable the formation of modified

Debranching enzymes and DNA sequences coding them, suitable for changing

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Stockholm, Sweden

Ivar Virgin