Effect of minerals on the production of the delta endotoxin by Bacillus thuringiensis subsp. israelensis

A study has been made of the mineral requirements of Bacillus thuringiensis subsp. israelensis for production of the mosquitocide delta endotoxin. The optimum concentrations of K2HPO4, MgSO4.7H2O and CaCO3 for toxin production are 1g/l, 0.3g/l and 1g/l respectively while the elements Fe, Mn, Cu are...

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Bibliographic Details
Published in:Biotechnology letters 1991-07, Vol.13 (7), p.511-514
Main Authors: Sikdar, D.P, Majumdar, M.K, Majumdar, S.K
Format: Article
Language:English
Subjects:
Bacillus thuringiensis israelensis
Bacillus thuringiensis subsp. israelensis
Biological and medical sciences
biosynthesis
Biotechnology
cell culture
culture media
delta -endotoxin
endotoxins
Fundamental and applied biological sciences. Psychology
growth
media (culture)
Methods. Procedures. Technologies
Microbial engineering. Fermentation and microbial culture technology
mineral nutrition
mosquitocides
nutrient requirements
ovicides and larvicides
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Summary:A study has been made of the mineral requirements of Bacillus thuringiensis subsp. israelensis for production of the mosquitocide delta endotoxin. The optimum concentrations of K2HPO4, MgSO4.7H2O and CaCO3 for toxin production are 1g/l, 0.3g/l and 1g/l respectively while the elements Fe, Mn, Cu are required at levels of 2 micrograms/ml, 5 micrograms/ml and 0.25 micrograms/ml respectively.
ISSN:0141-5492
1573-6776
DOI:10.1007/BF01049209