Process to provide HPPD inhibitor herbicide tolerant plants through bypassing HPPD metabolic pathway.

摘要

Rendering plants tolerant to a herbicide (I) by expressing an enzyme (II) that by-passes the metabolic pathway inhibited by (I) in them. Independent claims are also included for the following: (1) a polypeptide (III) with HPPO (4-hydroxyphenylpyruvate oxidase) activity; (2) a polypeptide (IV) with HPAH activity; (3) a polypeptide (V) with HPAC activity; (4) nucleic acids (A) that encode (III) - (V); (5) an expression cassette (EC) containing (A); (6) a cloning and/or expression vector containing an EC; (7) transformed plant cells, also plants and their seeds, that contain an EC; (8) transforming plants by incorporation of an EC into the genome; and (9) a selective weed control method that uses an inhibitor of HPPD (4-hydroxyphenylpyruvate dioxygenase) as a herbicide. ACTIVITY : Herbicidal antidote. No biological data is given. MECHANISM OF ACTION : 4-hydroxyphenylpyruvate oxidase; HPA 1-hydrolase.