Plasmids containing DNA-sequences that cause changes in the carbohydrate concentration and carbohydrate composition in plants, as well as plant cells and plants containing these plasmids

US6215042A · kind A · utility

Assignee

• Hoeschst Schering Agrevo GmbH · DE

Inventors

• Lothar Willmitzer · Kleinmachnow, DE
• Uwe Sonnewald · Berlin, DE
• Jens Kossmann · Golm, DE
• Bernd Muller-Rober · Berlin, DE
• Richard Visser · Zwolle, NL
• Evert Jacobsen · Wageningen, NL

Key dates

• Filing date: Aug 13, 1993
• Grant date: Apr 10, 2001
• Expiry date: Aug 13, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12N15/8245
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Plasmids are described having DNA sequences that after insertion into the genome of the plants cause changes in the carbohydrate concentration and the carbohydrate composition in regenerated plants. These changes can be obtained from a sequence of a branching enzyme that is located on these plasmids. This branching enzyme alters the amylose/amylopectin ratio in starch of the plants, especially in commercially used plants.