Abstract
Conjugal transfer of the Streptococcus lactis 712 lactose plasmid was found to occur at a low frequency. Variants of this plasmid were selected which had much greater donor abilities and which also exhibited an unusual cell aggregation phenotype.
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- Dunny G. M., Brown B. L., Clewell D. B. Induced cell aggregation and mating in Streptococcus faecalis: evidence for a bacterial sex pheromone. Proc Natl Acad Sci U S A. 1978 Jul;75(7):3479–3483. doi: 10.1073/pnas.75.7.3479. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dunny G. M., Clewell D. B. Transmissible toxin (hemolysin) plasmid in Streptococcus faecalis and its mobilization of a noninfectious drug resistance plasmid. J Bacteriol. 1975 Nov;124(2):784–790. doi: 10.1128/jb.124.2.784-790.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Efstathiou J. D., McKay L. L. Plasmids in Streptococcus lactis: evidence that lactose metabolism and proteinase activity are plasmid linked. Appl Environ Microbiol. 1976 Jul;32(1):38–44. doi: 10.1128/aem.32.1.38-44.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Finnegan D., Willetts N. The nature of the transfer inhibitor of several F-like plasmids. Mol Gen Genet. 1972;119(1):57–66. doi: 10.1007/BF00270444. [DOI] [PubMed] [Google Scholar]
- Jacob A. E., Hobbs S. J. Conjugal transfer of plasmid-borne multiple antibiotic resistance in Streptococcus faecalis var. zymogenes. J Bacteriol. 1974 Feb;117(2):360–372. doi: 10.1128/jb.117.2.360-372.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klaenhammer T. R., McKay L. L., Baldwin K. A. Improved lysis of group N streptococci for isolation and rapid characterization of plasmid deoxyribonucleic acid. Appl Environ Microbiol. 1978 Mar;35(3):592–600. doi: 10.1128/aem.35.3.592-600.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marder H. P., Kayser F. H. Transferable plasmids mediating multiple-antibiotic resistance in Streptococcus faecalis subsp. liquefaciens. Antimicrob Agents Chemother. 1977 Aug;12(2):261–269. doi: 10.1128/aac.12.2.261. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McKay L. L., Baldwin K. A., Efstathiou J. D. Transductional evidence for plasmid linkage of lactose metabolism in streptococcus lactis C2. Appl Environ Microbiol. 1976 Jul;32(1):45–52. doi: 10.1128/aem.32.1.45-52.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McKay L. L., Baldwin K. A., Zottola E. A. Loss of lactose metabolism in lactic streptococci. Appl Microbiol. 1972 Jun;23(6):1090–1096. doi: 10.1128/am.23.6.1090-1096.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McKay L. L., Cords B. R., Baldwin K. A. Transduction of lactose metabolism in Streptococcus lactis C2. J Bacteriol. 1973 Sep;115(3):810–815. doi: 10.1128/jb.115.3.810-815.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Terzaghi B. E., Sandine W. E. Improved medium for lactic streptococci and their bacteriophages. Appl Microbiol. 1975 Jun;29(6):807–813. doi: 10.1128/am.29.6.807-813.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]

