Bacillus thuringiensis mutants which produce high yelds of cryst

Details Bacillus thuringiensis mutants which produce high yelds of cryst Bacillus thuringiensis mutants which produce high yelds of cryst

1995-01-25

1997-12-16

Marx, Irene

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Bacteria or actinomycetales; media therefor

4351721, 424 93461, C12N 120

Patent

active

056984405

ABSTRACT:
The invention relates to a mutant of Bacillus thuringiensis which produces a larger amount of crystal delta-endotoxin with a greater pesticidal activity as compared to the corresponding parental strain. The mutant may also have a larger crystal size as compared to the corresponding parental strain. The crystal delta-endotoxin produced by the mutant Bacillus thuringiensis will have an activity directed towards the same pest(s) as its parental Bacillus thuringiensis crystal delta-endotoxin. The invention further relates to a method for producing such a mutant, compositions comprising such a mutant as well as methods for controlling a pest(s) using these compositions.

REFERENCES:
patent: 4713241 (1987-12-01), Wakisaka et al.
patent: 4935353 (1990-06-01), Burges et al.
patent: 4990332 (1991-02-01), Payne et al.
patent: 5063055 (1991-11-01), Burges et al.
patent: 5147640 (1992-09-01), Gard, Jr. et al.
patent: 5279962 (1994-01-01), Gurtler et al.
patent: 5407825 (1995-04-01), Payne et al.

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