Abstract
DNA-DNA homology between a reduced bacteriophage sensitivity (Rbs+) probe and DNA from both Rbs+ and Rbs- Lactococcus lactis strains was examined. Homology was detected between the probe and five plasmids (pCI750, pCC34, pEB56, pNP2, and pJS88) isolated from lactose-positive Rbs+ transconjugants and between the probe and genomic DNA of a sucrose-positive Rbs+ transconjugant. Additionally, hybridizations conducted between the probe and plasmids reported to encode abortive bacteriophage infection indicated homology with pTR2030 but not with pBF61 and pGBK17. The results suggest that a common genetic determinant(s) may be present in a variety of lactococcal plasmids coding for Rbs+.
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Citations
Feb 11, 2015·Annual Review of Food Science and Technology·Larry McKay
Jul 1, 1990·Applied and Environmental Microbiology·C HillT R Klaenhammer
Dec 1, 1991·Applied and Environmental Microbiology·P J CluzelM C Chopin