BIOCHEMICAL CHANGES OCCURRING DURING SPORULATION OF BACILLUS CEREUS T II
نویسندگان
چکیده
منابع مشابه
Biochemical changes occurring during sporulation of Bacillus cereus. Inhibition of sporulation by alpha-picolinic acid.
The effects of nutritional and environmental conditions on sporulation and the properties of the spore have been extensively studied with the hope that these may provide a clue to the mechanism of dormancy and resistance of the bacterial endospore. However, there is no general agreement and our knowledge of these is still limited. The extensive literature dealing with the various aspects of spo...
متن کاملBiochemical changes occurring during sporulation in Bacillus species.
is too fast to be measured by the methods used. The second step, which involves the acylation of the enzyme and the concomitant liberation of pnitrophenol, is characterized by the rate constant k2= 3-15 sec.-'. The third step involves the liberation of acetate and reactivation of the enzyme; the rate of this reaction is defined by kI3= 0-0254 sec.-'. 2. The rate constant k2 for the second step ...
متن کاملElectron microscopy of ultra-thin sections of bacteria. II. Sporulation of Bacillus megaterium and Bacillus cereus.
The lack of clarity of the cytological representations of non-nuclear structures appearing in figures which accompany various papers describing the sporulation process has always left the author somewhat dissatisfied. Nuclear elements typically are distinctly stained while the cytoplasm and cell walls usually are either indistinguishable or very faintly discernible. The techniques which have be...
متن کاملGlyoxylate metabolism in growth and sporulation of Bacillus cereus.
Megraw, Robert E. (Iowa State University, Ames), and Russell J. Beers. Glyoxylate metabolism in growth and sporulation of Bacillus cereus. J. Bacteriol. 87:1087-1093. 1964.-Isocitrate lyase and malate synthetase were found in cell-free extracts of Bacillus cereus T. The patterns of synthesis of enzymes of the glyoxylic acid cycle were dependent upon the medium in which the organism was grown. C...
متن کاملOrganic Nutrients Required for Growth and Sporulation of Bacillus Cereus.
E spores. This concentration is obtained by simple mixing of equal parts of absolute ethanol and the enrichment culture prepared as follows. When the presence of type E toxin was demonstrated in the suspect fish by titrations with mice, portions of the sample were cultured in duplicate tubes of cooked meat medium (CMM) prepared from fresh liver and Trypticase-peptoneglucose (TPG) broth (Schmidt...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1963
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.85.6.1386-1393.1963