Clostridium perfringens Sporulation and Sporulation-Associated Toxin Production
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چکیده
منابع مشابه
Sporulation and enterotoxin production by mutants of Clostridium perfringens.
The ability of Clostridium perfringens type A to produce an enterotoxin active in human food poisoning has been shown to be directly related to the ability of the organism to sporulate. Enterotoxin was produced only in a sporulation medium and not in a growth medium in which sporulation was repressed. Mutants with an altered ability to sporulate were isolated from an sp(+) ent(+) strain either ...
متن کاملClostridium perfringens Sporulation and Enterotoxin Synthesis
5 Running title: Role of SigF and SigG in sporulation and CPE synthesis 6 * To Whom Correspondence Should be Addressed: 7 Bruce A. McClane 8 Department of Microbiology and Molecular Genetics 9 447 Bridgeside Point II Building 10 450 Technology Drive 11 University of Pittsburgh School of Medicine 12 Pittsburgh, PA 15219 13 Phone: 412-648-9022 14 Fax: 412-624-1401 15 Email: [email protected] 16 Copy...
متن کاملImproved medium for sporulation of Clostridium perfringens.
An improved sporulation medium has been developed in which all five strains of Clostridium perfringens tested exhibited a 100- to 10,000-fold increase in numbers of spores when compared with spore yields in SEC medium under comparable conditions. In addition, three of five strains produced a 100- to 1,000-fold increase, with the remaining two strains yielding approximately the same numbers of s...
متن کاملChemically defined medium for growth and sporulation of Clostridium perfringens.
A chemically defined medium was developed that could support sporulation and growth of Clostridium perfringens strains ATCC 12916 and H9. This medium consisted of a modification of the basal medium of Boyd et al. plus 0.1% sodium thioglycolate and 0.5% monosodium glutamate. Five other strains grew, but did not sporulate, in this medium. With the addition of more vatamins into the medium, two mo...
متن کاملCytological observations on the sporulation process of Clostridium perfringens.
Cytological studies on the sporulation process of Clostridium perfringens have been limited by the fact that the organism sporulates very poorly on most laboratory media. Attempts to promote extensive sporulation of this organism have met with little success in the past (Simmonds, 1915; Adamson, 1918; Jahlons, 1920; Headlee, 1931; Bethge, 1947). Some investigators (Hobbs et al., 1953) have had ...
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ژورنال
عنوان ژورنال: Microbiology Spectrum
سال: 2016
ISSN: 2165-0497
DOI: 10.1128/microbiolspec.tbs-0022-2015