Bacteriocinogenesis in Bacillus megaterium
نویسندگان
چکیده
منابع مشابه
Plasmolysis in Bacillus Megaterium.
Weibull, Claes (Central Bacteriological Laboratory of Stockholm City, Stockholm, Sweden). Plasmolysis in Bacillus megaterium. J. Bacteriol. 89:1151-1154. 1965.-Sucrose solutions stronger than 1 m caused plasmolysis in Bacillus megaterium strain M, whereas concentrated NaCl and KNO(3) solutions were ineffective. In plasmolyzed cells, mesosome bodies were found in pockets between the cytoplasmic ...
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Weibull (1953a) has shown that after osmotic lysis of protoplasts of Bacillus megaterium, prepared by controlled treatment with lysozyme, only two microscopically detectable structures remain; membrane-like bodies termed "ghosts," and granules. The ghosts were found to sediment as a dark yellow fraction by centrifugation at 10,000 G (Weibull, 1953b) and to contain almost all the pigmented mater...
متن کاملMegacinogenic plasmids of Bacillus megaterium.
Megacins A-216 and A-19213 in Bacillus megaterium are plasmid encoded, as shown by analysis of cured, non-megacinogenic (Meg-) derivatives of strains 216 and ATCC 19213 and by polyethylene glycol-mediated protoplast transformation of Meg- bacteria with plasmid DNA. The results of both techniques implicated a 31-megadalton plasmid, pBM309, in megacin A-216 production and a 29-megadalton plasmid,...
متن کاملRed pigment in Bacillus megaterium spores.
Bacillus megaterium QM B1551 spores contained a unique red pigment in their membranes that was not found in other species. This red pigment, presumably a carotenoid, was synthesized about the time of dipicolinic acid synthesis during sporulation and was associated with the forespores. A yellow pigment was synthesized during sporulation in rich medium and was found in the mother cell compartment...
متن کاملBiosynthesis of dipicolinic acid in Bacillus megaterium.
Very little is known of the precursors of the dipicolinic acid (pyridine-2,6-dicarboxylic acid) in bacterial spores. C'4-2,6-diaminopimelic acid was shown to contribute to the formation of dipicolinic acid in Bacillus cereus var. mycoides (Perry and Foster, 1955; Foster, 1956) but the efficiency of the conversion was low, possibly because of a slow penetration of the cells by the exogenously su...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1957
ISSN: 0022-1287
DOI: 10.1099/00221287-16-3-522