Combatting plant insect pests with plant-colonizing microorganisms containing the toxin gene B. thuringiensis as a chromosomal insertion
US5229112A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1989 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Jun 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/07
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to a plant-colonizing microorganism which has been genetically engineered to integrate into the chromosome of such microorganism, DNA derived from B. thuringiensis coding for protein toxin. The genetically engineered plant-colonizing microorganisms of the invention, and their progeny, proliferate in commensal or non-detrimental relationship with the plant in the plant environment and are insecticidally active against a subspecies of insect pest which are harmful to the plant. The invention further relates to insecticidal compositions containing such plant-colonizing microorganisms as the active insecticidal agent and to a method of using such genetically engineered plant-colonizing microorganisms in a method of killing or inhibiting insect pests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.