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Transference of a crystal protein gene from Bacillus thuringiensis and its expression in Bradyrhizobium sp. cells

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Abstract

The plasmid pHT409 that harbours the cryIA(a) gene for the production of a δ-endotoxin (crystal protein) from Bacillus thuringiensis was transferred into Bradyrhizobium sp. A conjugal transfer system aiming to introduce the plasmid into the Bradyrhizobium sp. host from colonies of an Escherichia coli donor strain (DH5α::pHT409) has been developed. As a result exconjugants were obtained in which the transferred plasmid has been detected by both microbiological and electrophoresis techniques. The cryIA(a) gene when inside the new host had a low expression level which was detected by immunoblotting.

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da Costa Lima, P.S., Lemos, M.V.F., Lemos, E.G.M. et al. Transference of a crystal protein gene from Bacillus thuringiensis and its expression in Bradyrhizobium sp. cells. World Journal of Microbiology and Biotechnology 16, 361–365 (2000). https://doi.org/10.1023/A:1008948125429

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  • DOI: https://doi.org/10.1023/A:1008948125429

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