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The adsorption of phage by Staphylococcus spp
The Journal of General Virology
|March 1, 1981
Summary
Coagulase-negative staphylococci possess a single type of binding site for bacteriophages, likely on their wall teichoic acids. This explains why these bacteria bind all tested phages, regardless of sensitivity.
Area of Science:
- Microbiology
- Bacteriology
- Virology
Background:
- Coagulase-negative staphylococci (CoNS) are significant opportunistic pathogens.
- Bacteriophages (phages) are viruses that infect bacteria and are potential therapeutic agents.
- Understanding phage-host interactions is crucial for phage therapy development.
Purpose of the Study:
- To investigate the binding characteristics of phages to coagulase-negative staphylococci.
- To determine the nature and number of phage binding sites on CoNS.
Main Methods:
- Adsorption of specific bacteriophages to heat-killed coagulase-negative staphylococci cells.
- Quantification of phage binding sites per cell.
- Demonstration of competitive binding between different phages.
Main Results:
- Phages exhibited equal affinities for all tested coagulase-negative staphylococci cells.
- An estimated 1.2 x 10^6 binding sites per cell were identified.
- Competitive binding confirmed a single series of phage binding sites.
Conclusions:
- Coagulase-negative staphylococci possess a single class of phage binding sites, likely associated with wall teichoic acids.
- These binding sites are accessible to all tested 'coagulase-negative' phages, irrespective of their lytic activity.