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http://nopr.niscpr.res.in/handle/123456789/11298| Title: | Characterization of Mosquito Larvicidal Bacillus thuringiensis Isolated from Soils of India |
| Authors: | Sur, Banani Nigam, Nitu Joshi, A K Bihari, Vinod |
| Keywords: | Bacillus thuringiensis;Bioinsecticide;Ecological niche;Parasporal inclusion;Serotype |
| Issue Date: | Apr-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | It has been established now that insects are acquiring resistance to commercial products of Bacillus thuringiensis. So there is a continuous search for bacteria producing new toxins. With this in view, an insecticidal B. thuringiensis was isolated from soil sample obtained from the vicinity of a penicillin factory in Vadodara, India. The isolate belongs to serotype H-14. Phenotypic characters of the isolate were identical to standard B. thuringiensis var. israelensis IPS-82. It was found to possess good larvicidal activity against Anopheles stephensi and Culex pipiens and exhibited high resistance for penicillin (500 ug/ml), The electrophoretic protein profiles of purified crystals with standard B. thuringiensis (IPS-82) were studied. The isolate apparently showed the same protein profile as that of B. thuringiensis var. israelensis. Soil with natural selective pressure of antibiotic penicillin thus appears to be a good ecological niche for the isolation of B. thuringiensis. |
| Page(s): | 268-270 |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Appears in Collections: | IJBT Vol.02(2) [April 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJBT 2(2) 268-270.pdf | 656.74 kB | Adobe PDF | View/Open |
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