Growth, sporulation and larvicidal activity of Bacillus sphaericus

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 1983 English Publisher:Springer Science and Business Media LLCJournal:European Journal of Applied Microbiology and Biotechnology, volume 18, pages 168-173 (issn: 0171-1741, eissn: 1432-0614,

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Authors: A. Kalfon; I. Larget-Thi�ry; J.-F. Charles; H. Barjac;

doi: 10.1007/bf00498040

Growth, sporulation and larvicidal activity of Bacillus sphaericus

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Abstract

A new medium (MBS) for optimal sporulation of Bacillus sphaericus was defined. With the two main mosquito pathogenic strains grown in this medium, 1593-4 and 2297, highest cell and spore yields were obtained, concomitantly with an highest larvicidal activity against Culex pipiens. Study of both strains asporulated mutants showed a decrease in larvicidal power. After plasmid curing treatments, toxicity of strain 1593-4 did not decrease, neither toxic parasporal inclusion bodies of strain 2297 disappear.

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Institut Pasteur
France

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