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Science 14 October 1977:
Vol. 198. no. 4313, pp. 198 - 199
DOI: 10.1126/science.333581
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Articles

Science, Vol 198, Issue 4313, 198-199
Copyright © 1977 by American Association for the Advancement of Science

articles

Naturally occurring plasmid carrying genes for enterotoxin production and drug resistance

CL Gyles, S Palchaudhuri, and WK Maas

Escherichia coli strain 86, isolated from a piglet with diarrhea, carries plasmid-linked genes for resistance to tetracycline, streptomycin, and sulfonamides and for production of heat-labile and heat-stable enterotoxin. Results of (i) genetic experiments involving conjugal transfer and phage P1-mediated transduction and (ii) physical experiments involving electron microscopic examination of plasmid DNA and heteroduplex analysis show that a single conjugative plasmid carries the genes for drug resistance and production of enterotoxin.


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Antimicrobial Resistance and Virulence Genes of Escherichia coli Isolates from Swine in Ontario.
P. Boerlin, R. Travis, C. L. Gyles, R. Reid-Smith, N. J. Heather Lim, V. Nicholson, S. A. McEwen, R. Friendship, and M. Archambault (2005)
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Enterotoxigenic Escherichia coli in Developing Countries: Epidemiology, Microbiology, Clinical Features, Treatment, and Prevention.
F. Qadri, A.-M. Svennerholm, A. S. G. Faruque, and R. B. Sack (2005)
Clin. Microbiol. Rev. 18, 465-483
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Plasmids Spread Very Fast in Heterogeneous Bacterial Communities.
F. Dionisio, I. Matic, M. Radman, O. R. Rodrigues, and F. Taddei (2002)
Genetics 162, 1525-1532
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In Vitro Activities of Cephalosporins and Quinolones against Escherichia coli Strains Isolated from Diarrheic Dairy Calves.
J. A. Orden, J. A. Ruiz-Santa-Quiteria, S. Garcia, D. Cid, and R. de la Fuente (1999)
Antimicrob. Agents Chemother. 43, 510-513
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Temperature Regulation of Heat-Labile Enterotoxin (LT) Synthesis in Escherichia coli Is Mediated by an Interaction of H-NS Protein with the LT A-Subunit DNA.
J. D. Trachman and W. K. Maas (1998)
J. Bacteriol. 180, 3715-3718
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Synthesis and secretion of the plasmid-coded heat-labile enterotoxin of Escherichia coli in Vibrio cholerae.
R. Neill, B. Ivins, and R. Holmes (1983)
Science 221, 289-291
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