Rhizobium japonicum symbiosis gene transfer

US4818696A · kind A · utility

Assignee

• Lubrizol Genetics, Inc. · US

Inventors

• Edward Appelbaum · Blue Bell, US
• Thomas J. McLoughlin · Monona, US
• Michael O'Connell · Bielefeld, DE

Key dates

• Filing date: Jun 1, 1984
• Grant date: Apr 4, 1989
• Expiry date: Jun 1, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/878
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A symbiosis plasmid from a fast-growing Rhizobium japonicum donor strain can be transferred to Rhizobium recipient strains, the recipient strains being previously incapable of forming an effective symbiotic relationship with plants of certain Glycine (e.g. soybean) varieties. The recipient strains harboring the symbiosis plasmid will form effective symbioses with soybean plants of said certain varieties, the transferred symbiosis plasmid conferring the host range or specificity of the donor strain on the recipient strains. Methods, strains, and plasmids useful for practice of this invention are also provided.