The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2001
Filed:
Mar. 02, 1999
Gurmukh S. Johal, Johnston, IA (US);
Steven P. Briggs, Del Mar, CA (US);
John Gray, Toledo, OH (US);
Gongshe Hu, Albany, CA (US);
Pioneer Hi-Bred International, Inc., Des Moines, IA (US);
Abstract
Compositions and methods for enhancing disease resistance to a pathogen in a plant are provided. Methods of the invention comprise stably transforming a plant with an antisense nucleotide sequence for a gene encoding an enzyme in the C-5 porphyrin metabolic pathway and operably linking the antisense sequence to a pathogen-inducible promoter, such that invasion of a cell by a pathogen elicits a hypersensitive-like response that results in confinement of the pathogen to cells of initial contact. Transformed plants and seeds are provided. Nucleotide sequences encoding a wild-type maize urod gene useful in the present invention and the amino acid sequence for the protein encoded thereby are provided. These compositions are also useful for regulating cell death in specifically targeted tissues. A maize lesion mimic, dominant mutant phenotype, designated Les22, and the molecular basis for its manifestation are also provided.