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[Electron microscopic study of the interaction between phages and Bacillus thuringiensis cells]
Mikrobiologiia
|September 1, 1979
Summary
Bacteriophage adsorption varies between Bacillus thuringiensis R and S variants. Phages Tg11 and Tg18 specifically interact with S-variant cells, while Tg13 binds to both, revealing cell wall interactions.
Area of Science:
- Microbiology
- Virology
- Bacteriophage research
Context:
- Bacillus thuringiensis (Bt) is a key entomopathogenic bacterium.
- Bacterial variants (R and S) exhibit distinct surface properties.
- Bacteriophages (phages) are viruses that infect bacteria and are morphologically diverse.
Purpose:
- To investigate the differential adsorption patterns of various bacteriophages on R and S variants of Bacillus thuringiensis var. galleriae.
- To elucidate the specific binding sites and mechanisms involved in phage-bacterial cell interactions.
Summary:
- Phages Tg11 and Tg18 did not adsorb to R-variant cells but showed specific adsorption to S-variant cells (poles for Tg11, uniform for Tg18).
- Phage Tg13 adsorbed to both R and S variants.
- Phage Tg13 lysates revealed aggregates with cell wall components, suggesting T-layer involvement in adsorption.
Impact:
- Provides insights into the host specificity of bacteriophages.
- Highlights the role of bacterial cell surface structures in phage-bacterial interactions.
- Contributes to understanding phage-host dynamics in Bacillus thuringiensis populations.