Transformation of Bacillus polymyxa with plasmid DNA

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Transformation of Bacillus polymyxa with plasmid DNA.

A plasmid transformation system was developed for Bacillus polymyxa ATCC 12321 and derivatives of this strain. The method utilizes a penicillin-treated-cell technique to facilitate uptake of the plasmid DNA. Low-frequency transformation (10(-6) per recipient cell) of plasmids pC194, pBD64, and pBC16 was accomplished with this method. Selection for the transformants was accomplished on both hype...

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Transformation of vegetative cells of Bacillus anthracis with plasmid DNA.

Methods have been developed for chemical transformation and electro-transformation (electroporation) of vegetative cells of Bacillus anthracis with supercoiled plasmid DNA. Chemical transformation was dependent on incubation in Tris/HCl with osmotic support and transformation with plasmid DNA was effected by treatment with polyethylene glycol 3350. Maximum transformation frequencies were 3.8 x ...

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Transformation of vegetative cells of Bacillus thuringiensis by plasmid DNA.

Plasmid DNA-mediated transformation of vegetative cells of Bacillus thuringiensis was studied with the following two plasmids: pBC16 coding for tetracycline resistance and pC194 expressing chloramphenicol resistance. A key step was the induction of competence by treatment of the bacteria with 50 mM Tris hydrochloride buffer (pH 8.9) containing 30% sucrose. Transformation frequency was strongly ...

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Transformation of Bacillus subtilis by single-stranded plasmid DNA.

The single-stranded form of a pE194-based plasmid transformed Bacillus subtilis protoplasts at least as efficiently as did the double-stranded plasmid, but the single-stranded form did not detectably transform B. subtilis competent cells.

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Transformation of Bacillus stearothermophilus with plasmid DNA and characterization of shuttle vector plasmids between Bacillus stearothermophilus and Bacillus subtilis.

A thermophilic bacterium Bacillus stearothermophilus IFO 12550 (ATCC 12980) was transformed with each of the following plasmids, pUB110 (kanamycin resistance, Kmr), pTB19 (Kmr and tetracycline resistance [Tcr]), and its derivative pTB90 (Kmr Tcr), by the protoplast procedure in the presence of polyethylene glycol at 48 degrees C. The transformation frequencies per regenerant for pUB110, pTB19, ...

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ژورنال

عنوان ژورنال: Applied and Environmental Microbiology

سال: 1989

ISSN: 0099-2240,1098-5336

DOI: 10.1128/aem.55.10.2517-2521.1989