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[Antigenic structure of Salmonella L forms studied by an immunoferritin method]
Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
|April 1, 1985
Summary
Salmonella L-forms show reduced O-antigen and K-antigen levels compared to parent bacteria. Reversion to normal forms fully restores these bacterial antigens.
Area of Science:
- Microbiology
- Immunology
- Bacterial Pathogenesis
Background:
- Salmonella L-forms are cell-wall deficient variants of bacteria.
- Understanding antigen expression in L-forms is crucial for studying bacterial adaptation and immune evasion.
Purpose of the Study:
- To investigate the antigenic structure of Salmonella L-forms.
- To compare antigen expression between L-forms, initial bacterial cultures, and revertant cultures.
Main Methods:
- Immunoferritin method was employed to visualize and quantify surface antigens.
- Comparative analysis of Salmonella typhimurium and Salmonella typhi L-forms, initial strains, and revertant cultures.
Main Results:
- Salmonella L-forms exhibited significantly reduced O-antigen levels.
- K-antigen was present on the L-form cytoplasmic membrane but in lower quantities than in initial strains.
- Reversion from L-forms completely restored both O- and K-antigen characteristics.
Conclusions:
- Salmonella L-form antigen expression is altered, with reduced O-antigen and K-antigen.
- The bacterial antigenic structure is fully recoverable upon reversion from the L-form state.
- These findings provide insights into Salmonella antigen dynamics during morphological changes.