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GROWTH RATES AND VIRULENCE OF E. COLI IN EXUDATES PRODUCED DURING INTESTINAL STRANGULATION OBSTRUCTION IN RATS
Author(s) -
Midtvedt Tore,
Trippestad Arne
Publication year - 1970
Publication title -
acta pathologica microbiologica scandinavica section b microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0365-5563
DOI - 10.1111/j.1699-0463.1970.tb04315.x
Subject(s) - virulence , casein , microbiology and biotechnology , bacteria , biology , chemistry , food science , biochemistry , genetics , gene
When 0.5 ml of a suspension of E. coli (5 times 10 7 per ml) in the sterile filtrate of “late” strangulation fluid was injected intraperitoneally on mice, all the mice died within 24 hours. None of the mice injected with the same numbers of microbes suspended in “early” strangulation fluid filtrate or in a casein medium died during this period. E. coli cultured in media containing “early” or “late” strangulation fluid or the casein medium did not vary significantly in rates of growth or virulence. A direct effect on the bacteria by substances in the “late” strangulation fluid filtrate did not appear to represent a factor of importance for the virulence‐enhancing property of the “late” filtrate.