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THE CLASSIFICATION OF COLI‐AEROGENES BACTERIA ISOLATED FROM FARM WATER SUPPLIES
Author(s) -
THOMAS S. B.,
JONES G. ELIS,
FRANKLIN PATRICIA M.
Publication year - 1951
Publication title -
proceedings of the society for applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0370-1778
DOI - 10.1111/j.1365-2672.1951.tb01993.x
Subject(s) - enterobacter aerogenes , escherichia coli , microbiology and biotechnology , lactose , bacteria , bacteriology , biology , aerobacter aerogenes , food science , veterinary medicine , medicine , biochemistry , genetics , gene
Summary: The methods suggested in the Report of the Coliform Sub‐Committee of the Society for Applied Bacteriology (Report, 1949) have been used in isolating and studying the coli‐aerogenes content of 142 samples of farm water supplies in two distinctive areas of Britain. The Gram‐negative cultures were grouped into typical, anaerogenic, non‐lactose‐fermenting and ‘unclassifiable’types, forming 54.2, 2.9, 10.9 and 32.0% of the 384 cultures respectively. Among the 261 coli‐aerogenes cultures, Bact. coli , intermediate and aerogenes‐cloacae organisms were found with frequencies of 32.2, 19.5 and 48.3% respectively. The majority of anaerogenic coli‐aerogenes organisms resembled Bact. coli type II while the predominant non‐lactose‐fermenters resembled Bact. cloacae and Bact. aerogenes type I. The reactions of 123 ‘unclassifiable'strains were such that very few could be regarded as Bact. coli types owing to the high incidence of gelatin liquefaction and growth in citrate broth.