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Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling
Published on: June 25, 2015
[The genetic transfer, heredity and phenotypic expression of plasmid RP4::Mu cts genes in Bacillus cereus]
Abstract:
The transcipients were obtained in intrageneric matings of E.coli donor harbouring the plasmid PR4::Mu cts 62 with Bac. cereus GP7 recipient cells with the frequency 10(-9). The transcipient clone Bac. cereus 682 was selected having stably inherited and expressed the hybrid plasmid PR4::Mu cts 62 genes for antibiotic resistance and temperature sensitivity. Production of the bacteriophage Mu cts 62 particles was not registered in the bacillary transcipient cells. The plasmid RP4::Mu cts 62 genes were localized in the chromosome of Bac. cereus 682 transcipient by the blot-hybridization technique with 32P-labelled DNA of the bacteriophage Mu cts 62 and the plasmid PR4. The transcipient of Bac. cereus 682 has the donor properties and transfers the RP4::Mu cts 62 genes to recipient cells of Bac. cereus DSM 318 with the frequency of 10(-6)-10(-7). The expression and transfer of the gram-negative plasmid genes in gram-positive bacterial cells are discussed.
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