Toxin production by Clostridium botulinum types A and B in unpasteurized cured meat products held at 15 and 27.DEG.C.
نویسندگان
چکیده
منابع مشابه
Physiology of toxin production by Clostridium botulinum types A and B. IV. Activation of the toxin.
Kindler et al. (1956) reported that a strain of Clostridium parabotulinum type A synthesized large quantities of toxin in a medium where cell multiplication was inhibited by high concentrations of penicillin. This interpretation of synthesis de novo of protein was based on the observations that the toxicity of the extracellular fluids increased in the absence of cell multiplication. It is a wel...
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The classical concept of exotoxin implies that the toxin is actively excreted into the external environment as a direct product of the organism's metabolic processes. On the other hand, endotoxin is assumed to be a structural component of the cell. From the many reports during the past decade it is apparent that this sharp distinction between the extracellular and intracellular nature of these ...
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Twelve strains of Clostridium botulinum type A and seven strains of Clostridium sporogenes were screened for plasmids by agarose gel electrophoresis of cleared lysates of cells from 5 ml of mid-log-phase culture. Nine type A strains had one or more plasmids of 4.3, 6.8, or 36 megadaltons (MDa); several strains showed a large plasmid of 61 MDa, but it was not consistently recovered. Four C. spor...
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ژورنال
عنوان ژورنال: The Japanese Journal of Veterinary Science
سال: 1984
ISSN: 0021-5295,1881-1442
DOI: 10.1292/jvms1939.46.917