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Experiences with serology of Plesiomonas shigelloides. 2. H-antigenic structure
Abstract:
A total of 140 out of 144 motile Plesiomonas shigelloides strains were typable with the aid of a set of 15 H-antisera designated by letter symbols a through o. Commonly, strains of different O-serovars turned out to share the identical H-antigen and for some O-serovars it was typical to possess the certain type of H-antigen, as e.g. strains of serovar 017 which all have been to date characterized by the presence of H-antigens c, d or f. This set of 15 H-sera together with the previously described O-antigenic scheme of Plesiomonas may help to determine the frequency rates of OH serovars.
Insights
Researchers developed a new method to serotype Plesiomonas shigelloides, a bacterium. This advancement in Plesiomonas shigelloides typing aids in understanding its prevalence and characteristics.
Area of Science:
- Microbiology
- Bacteriology
- Immunology
Background:
- Plesiomonas shigelloides is an important bacterial species with diverse serovars.
- Accurate serotyping is crucial for epidemiological studies and understanding bacterial pathogenicity.
- Existing serotyping methods for Plesiomonas shigelloides may have limitations.
Purpose of the Study:
- To establish a reliable H-antigen typing scheme for Plesiomonas shigelloides.
- To investigate the relationship between O-serovars and H-antigens in Plesiomonas shigelloides.
- To facilitate the determination of OH serovar frequencies in Plesiomonas shigelloides.
Main Methods:
- Utilized a set of 15 H-antisera for serological typing of motile Plesiomonas shigelloides strains.
- Compared H-antigen profiles across different O-serovars.
- Correlated H-antigen types with specific O-serovars, including O17.
Main Results:
- 140 out of 144 motile Plesiomonas shigelloides strains were successfully typed using the 15 H-antisera.
- A common observation was that strains of different O-serovars shared identical H-antigens.
- Specific O-serovars, such as O17, consistently exhibited particular H-antigens (c, d, or f).
Conclusions:
- The developed H-antigen typing scheme is effective for Plesiomonas shigelloides.
- The established O-antigenic scheme combined with the new H-antigen scheme allows for comprehensive OH serotyping.
- This typing system will aid in determining the frequency rates of Plesiomonas shigelloides OH serovars, crucial for epidemiological surveillance.