Genetically engineered bacillus sphaerocus producing larvicidal toxin from bacillus thuringiensis var. israelensis
Bacillus sphaericus (B. sph.) are transformed with the toxin encoding gene from Bacillus thuringiensis var. israelensis (B.t.i.) and consequently new strains of B. sph. are produced having both the wide spectrum activity against larvae of mosquities and black flies of (B.t.i.) and the natural persis...
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Zusammenfassung: | Bacillus sphaericus (B. sph.) are transformed with the toxin encoding gene from Bacillus thuringiensis var. israelensis (B.t.i.) and consequently new strains of B. sph. are produced having both the wide spectrum activity against larvae of mosquities and black flies of (B.t.i.) and the natural persistence characteristic of B. sph. The newly produced B. sph. strains are useful as bio-insecticides and as such are applied to water reservoirs in which larvae of mosquitos and black flies live. |
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