Physiological studies on spore germination, with special reference to Clostridium botulinum; carbon dioxide and germination, with a note on carbon dioxide and aerobic spores.
نویسندگان
چکیده
منابع مشابه
Physiological Studies on Spore Germination with Special Reference to Clostridium botulinum: I. Development of a Quantitative Method.
By far the majority of studies hitherto made on germination of bacterial spores have employed the appearance of visible turbidity as the criterion of germination. Obviously this technique can reveal no quantitative characteristics of the germination process and is therefore of value only in establishing that some germination does or does not take place. Even here its value may be questioned, si...
متن کاملPhysiological Studies on Spore Germination, with Special Reference to Clostridium botulinum: IV. Inhibition of Germination by Unsaturated C(18) Fatty Acids.
Unsaturated C18 fatty acids, particularly oleic, are known to inhibit the growth of a great variety of bacteria (see Humfeld, 1947, for literature summary). In contrast, virtually nothing is known of the effect of such agents on the germination of spores preparatory to vegetative development. Castor soap has been reported inhibitory to Clostridium botulinum (Gibbs et al., 1926), but it is not c...
متن کاملAnalysis of the germination proteins in Alicyclobacillus acidoterrestris spores subjected to external factors.
The presence of Alicyclobacillus acidoterrestris, a thermoacidophilic and spore-forming bacterium, in pasteurized acidic juices poses a serious problem for the processing industry. Therefore, the use of other more effective techniques, such as high hydrostatic pressure (HHP) and supercritical carbon dioxide (SCCD), is considered for preserving juices in order to inactivate these bacteria, while...
متن کاملHeat resistance, spore germination, and enterotoxigenicity of Clostridium perfringens.
Heat resistance at 95 C, heat activation at 75 C, and germination response were determined for spores of 10 serotype strains of Clostridium perfringens type A, including five heat-resistant and five heat-sensitive strains. The D95-values ranged from 17.6 to 63.0 and from 1.3 to 2.8 for the heat-resistant and the heat-sensitive strains, respectively. The heat-activation values, the ratios betwee...
متن کاملFunctional Characterisation of Germinant Receptors in Clostridium botulinum and Clostridium sporogenes Presents Novel Insights into Spore Germination Systems
Clostridium botulinum is a dangerous pathogen that forms the highly potent botulinum toxin, which when ingested causes a deadly neuroparalytic disease. The closely related Clostridium sporogenes is occasionally pathogenic, frequently associated with food spoilage and regarded as the non-toxigenic equivalent of Group I C. botulinum. Both species form highly resistant spores that are ubiquitous i...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 55 3 شماره
صفحات -
تاریخ انتشار 1948