| Biological control of mosquitoes by the larvicidal activity of Bacillus thuringiensis var. israelensis delta endotoxin. | |
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MedLine Citation:
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PMID: 2436447 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Bacillus thuringiensis var. israelensis (B.t.i.) is a promising, safe toxic agent for control of mosquitoes, but the rapid disappearance of its toxicity makes its use in practice economically unattractive. The lack of evidence for B.t.i. multiplication in water also makes the natural ecology of B.t.i. puzzling. The observation that mosquito larvae readily cannibalize carcasses of B.t.i.-killed larvae, and that the carcasses become toxic to scavenging larvae provides a possible solution to this puzzle. Several experimental techniques have been developed to study these phenomena (e.g., quantitative determination of spore numbers despite aggregation, protocols for following toxicity development, etc.). Results suggest a cycle involving larval poisoning and death due to delta-endotoxin of ca. 1,000 spores, germination, vegetative growth and sporulation (with toxin production) of B.t.i. after multiplication to several million in the carcass. Implications of these results for the ecology of B.t.i., and for practical applications in mosquito control, are discussed. |
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Authors:
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A Zaritsky; K Khawaled; Z Barak; D M Chipman; T Rabi |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Acta microbiologica Polonica Volume: 35 ISSN: 0137-1320 ISO Abbreviation: Acta Microbiol. Pol. Publication Date: 1986 |
Date Detail:
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Created Date: 1987-05-14 Completed Date: 1987-05-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7610362 Medline TA: Acta Microbiol Pol Country: POLAND |
Other Details:
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Languages: eng Pagination: 207-14 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Bacillus thuringiensis* Bacterial Proteins* Bacterial Toxins* Culicidae* Culture Media Endotoxins* Hemolysin Proteins Larva Pest Control, Biological* Spores, Bacterial |
| Chemical | |
Reg. No./Substance:
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0/Bacterial Proteins; 0/Bacterial Toxins; 0/Culture Media; 0/Endotoxins; 0/Hemolysin Proteins; 0/insecticidal crystal protein, Bacillus Thuringiensis |
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