Phenotypic Alterations Associated with the Bacteriophage Carrier State of Shigella dysenteriae
نویسندگان
چکیده
منابع مشابه
Abortive infection of Shigella dysenteriae P2 by T2 bacteriophage.
We have investigated some of the biochemical events that accompany the abortive infection by T2 of Shigella dysenteriae lysogenized with the temperate phage P2. After infection with T2, protein and RNA synthesis continued for 3 to 5 min. The virus-induced enzyme, deoxycytidylate hydroxymethylase was produced in reduced amounts (15% of normal), and the extent of deoxyribonucleic acid (DNA) synth...
متن کاملMolecular and phenotypic characterization of potentially new Shigella dysenteriae serotype.
From September 1997 to November 1998, the French National Center for Salmonella and Shigella received 22 Shigella isolates recovered from 22 different patients suffering from dysentery. None of these isolates reacted with any of the antisera used to identify established Shigella serotypes, but all of them agglutinated in the presence of antisera to a previously described potentially new Shigell...
متن کاملImpaired imipenem uptake associated with alterations in outer membrane proteins and lipopolysaccharides in imipenem-resistant Shigella dysenteriae.
Three imipenem-resistant mutants were obtained from a clinical isolate (C152) of Shigella dysenteriae by selection with increasing concentrations of imipenem. Resistance to imipenem was associated with resistance to several other beta-lactam antibiotics. The penicillin-binding protein (PBP) patterns of the resistant and the wild-type strains were comparable. The permeability of the outer membra...
متن کاملSurvival of Shigella dysenteriae on fomites
Studies have shown that various objects, such as utensils, toys, and clothes, can serve as vehicles for transmission of Shigella spp. Shigellae can become viable but non-culturable (VBNC) when exposed to various environmental conditions as shown in earlier studies. The present study was carried out to detect VBNC Shigella dysenteriae type 1 on various fomites by direct viable counting, polymera...
متن کاملThe Specificity of the Agglutinin Reaction for Shigella dysenteriae: II. Agglutinin Absorption Relationships between Shigella dysenteriae and Escherichia coli.
In a previous communication (Mackie, 1938) we have reported observations upon the Shigella dysenteriae agglutinin curves in a group of patients presenting the intestinal pathology of chronic bacillary dysentery and bacteriologic or serologic evdence of infection by these organisms. Fluctuation of the titre curves in individual patients, the common finding of higher titres in the culture-negativ...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1961
ISSN: 0022-1287
DOI: 10.1099/00221287-24-3-355