Properties of Proteus mirabilis and Providence Spheroplasts
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منابع مشابه
Properties of Proteus mirabilis and Providence spheroplasts.
Proteus mirabilis strain I 3 and Providence strain NCTC 92 I I were converted to osmotically sensitive spheroplasts by growth in the presence of penicillin or glycine in sucrose-supplemented or unsupplemented medium. Lysazyme in the presence of tris and ethylenediaminetetra-acetic acid (EDTA) converted both these strains to spheroplasts. Penicillin spheroplasts could be stabilized with sucrose,...
متن کاملReversion of L forms and spheroplasts of Proteus mirabilis.
Altenbern, Robert A. (U.S. Army Chemical Corps, Fort Detrick, Frederick, Md.). Reversion of L forms and spheroplasts of Proteus mirabilis. J. Bacteriol. 85:269-272. 1963.-Spheroplasts or 3-B type L forms of Proteus mirabilis formed by growth in the presence of penicillin are able to revert to the bacillary form, as judged by regain of resistance to osmotic shock. Reversion takes place in the ab...
متن کاملSusceptibility to polymyxin B in penicillin G-induced Proteus mirabilis L forms and spheroplasts.
A polymyxin B-resistant strain of Proteus mirabilis was converted into L forms and spheroplasts in the presence of penicillin G. This treatment caused a 400-fold increase in polymyxin B susceptibility. The acquired susceptibility was in the range of the natural susceptibility reported for susceptible gram-negative bacteria ( approximately 1 mug/ml). The high susceptibility to polymyxin B was lo...
متن کاملPurification and properties of glucosaminephosphate isomerase of Proteus mirabilis.
A glucosamine-P isomerase has been identified in Proteus mirabilis. The 113-fold purified enzyme exhibits a pH optimum of 7.5 with a secondary maximum at 8.5 and a temperature optimum at 37 degrees C. The apparent Km was 13.3 mM for fructose-6-P and 18.8 mM for L-glutamine. Molecular weight of the enzyme has been estimated as 120 000 and the protein can be dissociated in four subunits by SDS-po...
متن کاملBacteriophage typing of Proteus mirabilis, Proteus vulgaris, and Proteus morganii.
A bacteriphage typing scheme for differentiating Proteus isolated from clinical specimens was developed. Twenty-one distinct patterns of lysis were seen when 15 bacteriophages isolated on 8 Proteus mirabilis, 1 P. vulgaris, and 1 P. morganii were used to type 162 of 189 (85.7%) P. mirabilis and P. vulgaris isolates. Seven phages isolated on 3 P. morganii were used to type 13 of 19 (68.4%) P. mo...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1969
ISSN: 0022-1287
DOI: 10.1099/00221287-56-2-257