f R Factor Transfer in Rhizobium leguminosarum
- By J. E. BERINGER
- First Published Online: 01 September 1974, Microbiology 84: 188-198, doi: 10.1099/00221287-84-1-188
- Subject: Genetics And Molecular Biology
- Issue Published:
SUMMARY: R factors of the compatibility class P were transferred between strains of Escherichia coli k12 and Rhizobium leguminosarum. These R factors were stable in R. leguminosarum and conferred similar levels of antibiotic resistance to those in the corresponding R+ E. coli k12 hosts, with the exception of carbenicillin resistance which was greatly reduced. Transfer between R. leguminosarum strains was by conjugation and was stimulated by conditions favouring spheroplast formation. R factor mediated recombination could not be demonstrated.
© Society for General Microbiology, 1974 | Published by the Microbiology Society
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