Conjugal transfer of plasmid pUB110 between different strains of bacilli was studied. The plasmid transfer was possible not only between various strains of B. subtilis, but also when many other species of bacilli served as recipients. Conjugation of a donor strain B. subtilis 19 (p19 pUB110) was accompanied by a transfer of plasmid p19 along with plasmid pUB110 to the B. subtilis recipient strains lacking a large plasmid p19. If, like the donor cells, the recipient B. subtilis strain carried plasmid p19, the frequency of conjugation decreased. The small plasmid pBC16 was also capable of conjugative transfer. However, if this plasmid carried the mob gene with an inverted region, the frequency of its transmission dramatically decreased. If the donor strain contained another small plasmid, pV, which also carried the mob gene, the efficiency of transmission was partially restored.
Russian Journal of Genetics – Springer Journals
Published: Oct 7, 2004
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