R Factors from and Free

Abstract

SUMMARY: Eighty-nine R factors were transmitted conjugation to 12 from isolates of ( plus ). More than half were non-selftranmissible. The remainder included plasmids assigned to the previously defined groups FII, A-C complex, J, N and P, as well as some not belonging to any known compatibility groups. R factors from strains isolated in India, Thailand and Japan carried plasmids whose inheritance was extremely unstable in 12. All belonged to a new compatibility group, V.

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1975-04-01
2024-03-28
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