Arginine-, hypoxanthine-, uracil-requiring isolates of Neisseria gonorrhoeae are a clonal lineage within a non-clonal population
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چکیده
منابع مشابه
Australian isolates of Legionella longbeachae are not a clonal population.
Legionella longbeachae is almost as frequent a cause of legionellosis in Australia as Legionella pneumophila, but epidemiological investigation of possible environmental sources and clinical cases has been limited by the lack of a discriminatory subtyping method. The purpose of this study was to examine the genetic variability among Australian isolates of L. longbeachae serogroup 1. Pulsed-fiel...
متن کاملDifferentiation of Neisseria gonorrhoeae isolates requiring proline, citrulline, and uracil by plasmid content, serotyping, and pulsed-field gel electrophoresis.
A combination of DNA macrorestriction analysis using pulsed-field gel electrophoresis and a serotyping method using three panels of monoclonal antibody was used to discriminate 43 epidemiologically unrelated Neisseria gonorrhoeae isolates requiring proline, citrulline, and uracil (PCU-) into 35 groups. This indicates that PCU- isolates of N. gonorrhoeae are not clonal.
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Meningococcal disease is a widely distributed complex disease affecting all age categories. It can cause severe meningitis and septicemia, especially in unvaccinated infants and young children. The causative agent, Neisseria meningitidis (Nm), can be phenotypically and genetically differentiated into serogroups and sequence types (STs) and has a highly dynamic population structure. To obtain a ...
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The three species Neisseria meningitidis, Neisseria gonorrheae, and Neisseria lactamica are often regarded as highly recombining bacteria. N. meningitidis has been considered a paradigmatic case of the "semiclonal model" or of "epidemic clonality," demonstrating occasional bouts of clonal propagation in an otherwise recombining species. In this model, occasional clonality generates linkage dise...
متن کاملNeisseria gonorrhoeae: subdivision of auxogroups by genetic transformation.
Genetic transformation was used in an attempt to subdivide the most prevalent auxotypes of Neisseria gonorrhoeae in local isolates. The large proline requiring (Pro-) group could be divided into two genetic types, as could the less common arginine requiring (Arg-) group. The large arginine, hypoxanthine, and uracil requiring (Arg- Hyp- Ura-) group could not be subdivided by this method. The gen...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1997
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-143-2-633