Kutasi, J., Kovacs, R., Puspan, I., Makk, J., Takacs, K., Erdelyi, B., Imre, Cs., Karpati, E. (2016). Protein Patterns and Larvicide Activity of Crystalline Inclusions of Bacillus thuringiensis ssp. kumamotoensis DSM 6070. , 18(7), 1945-1951.
J. Kutasi; R. Kovacs; I. Puspan; J. Makk; K. Takacs; B. Erdelyi; Cs. Imre; E. Karpati. "Protein Patterns and Larvicide Activity of Crystalline Inclusions of Bacillus thuringiensis ssp. kumamotoensis DSM 6070". , 18, 7, 2016, 1945-1951.
Kutasi, J., Kovacs, R., Puspan, I., Makk, J., Takacs, K., Erdelyi, B., Imre, Cs., Karpati, E. (2016). 'Protein Patterns and Larvicide Activity of Crystalline Inclusions of Bacillus thuringiensis ssp. kumamotoensis DSM 6070', , 18(7), pp. 1945-1951.
Kutasi, J., Kovacs, R., Puspan, I., Makk, J., Takacs, K., Erdelyi, B., Imre, Cs., Karpati, E. Protein Patterns and Larvicide Activity of Crystalline Inclusions of Bacillus thuringiensis ssp. kumamotoensis DSM 6070. , 2016; 18(7): 1945-1951.

Protein Patterns and Larvicide Activity of Crystalline Inclusions of Bacillus thuringiensis ssp. kumamotoensis DSM 6070

Journal of Agricultural Science and Technology
Article 19, Volume 18, Issue 7, 2016, Pages 1945-1951    PDF (225.64 K)
Authors
J. Kutasi* 1; R. Kovacs1; I. Puspan1; J. Makk2; K. Takacs3; B. Erdelyi3; Cs. Imre1; E. Karpati4
1BioFil Ltd., Budapest, Hungary.
2Department of Microbiology, Eötvös Loránd University, Budapest, Hungary.
3Fermentia Ltd., Budapest, Hungary.
4Saniplant Ltd., Budapest, Hungary.
Abstract
Morphological and electrophoretic analysis of the crystalline inclusions (parasporal crystals) of sporulated cultures of B. thuringiensis ssp. kumamotoensis DSM 6070 (Bt 6070) was conducted via phase contrast and scanning electron microscopy and sodium dodecyl sulphate-polyacrylamide gel electrophoresis. The activity of the spore-crystal suspensions against house fly (Musca domestica) larvae was also assessed. Bipyramidal and smaller, irregular shaped crystals were observed in the sporulated cultures. 130, 75 and 25 kDa bands were detected in the protein pattern. The presence of 25 kda proteins in Bt6070 has not been reported earlier. The spore-crystal suspension showed significant larvicide activity against housefly larvae. Larvicide activity of B. thuringiensis ssp. kumamotoensis against any dipteran species has not been detected yet. Further studies are needed on identifying the dipteran- active fraction.
Keywords
Bacillus thuringiensis; Parasporal crystals; Polyacrylamide gel-electrophoresis; Scanning electron microscopy
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