The Nutritional Requirements of Clostridium perfringens
نویسندگان
چکیده
منابع مشابه
The nutritional requirements of Clostridium perfringens.
The requirements for growth factors, amino acids and inorganic constituents were determined for three strains of CZostridium perfringens (Veillon & Zuber) Holland. A number of substances were tested as energy sources for this organism, and the influence of pH value and temperature on growth was determined. The minimal medium evolved contained : alanine, arginine, aspartic acid, cystine, glutami...
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A potent toxin was produced by a strain of Clostridium perfringens PB6K in a chemically defined medium consisting of 19 amino acids, fructose, vitamins and minerals. A large amount of L-arginine (10 mg/ml or higher concentration) was required for toxin production. An excess of L-cystine (0.1 mg/ml or higher) reduced the yield of toxin seriously. Zinc and manganese, though ineffective for growth...
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Wieringa (1936; 1939-1940) described the isolation of a soil anaerobe, Closstridium aceticum, which was able to convert hydrogen and carbon dioxide to acetic acid. The nutritional requirements of this organism appeared to be complex, an extract of mud being an indispensable constituent of the medium. We have made further investigations of the nutrition of C. aceticum, which have led to the iden...
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This investigation was undertaken with the purpose of developing a synthetic medium for Clostridium parabotulinum, type A, in order to study certain phases of the toxin-producing mechanism. The results mainly confirmed the findings of Fildes and his coworkers (1933) with respect to the essential nature of certain substances in yeast and pregnancy urines. In addition, certain evidence is present...
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The objectives of the investigation of the nutrition of Clostridiu,m perfringens were twofold. In the first place, the development of a chemically defined medium was prerequisite for the understanding of the factors and conditions favorable to production of t#oxins or exoenzymes. Secondly, it became evident early in the investigation that the organism presented exceptional advantages as a means...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1957
ISSN: 0022-1287
DOI: 10.1099/00221287-16-2-317