Herbicide tolerant plants, plant tissue or plant cells having altered protoporphyrinogen oxidase activity
US6307129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y103/03004
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention provides novel eukaryotic DNA sequences coding for native protoporphyrinogen oxidase (protox) or modified forms of the enzyme which are herbicide tolerant. Plants having altered protox activity which confers tolerance to herbicides are also provided. These plants are engineered for resistance to protox inhibitors via mutation of the native protox gene to a resistant form or they are transformed with modified eukaryotic or prokaryotic protox coding sequences or wild type prokaryotic protox sequences which are herbicide tolerant. Plant genes encoding wild-type and altered protox, purified plant protox, methods of isolating protox from plants, and methods of using protox-encoding genes are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.