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[Pasteurella multocida bacteriophage adsorption]
Abstract:
Studied was the adsorption of 8 strains of Pasteurella multocida bacteriophages presenting three groups of phages isolated in Bulgaria. With the bacteriophages of groups I and II the adsorption in broth in the first 10 minutes amounted to 50-65%, and at the 80 the minute reached its maximum value--98-99%. With the bacteriophages of group III adsorption started with a lower percent and by the 140th minute reached 96-97%. It was by 60 min slower as compared with the adsorption with group I and II phages. In a veronal-medinal buffer the adsorption of all investigated phages of the three groups set in with a prolonged time of 60 min as compared with the time elapsed using broth. At the cross testing of adsorption the phages of group I were adsorbed by the hosts of the other two groups to a maximum level, however, the phages of groups II and III were adsorbed to a negligible extent on the other hosts (except for the adsorption on their homologous one). The difference established in the adsorption for a 60 minutes time so far as the phages of group III were concerned was sufficiently persuasive to consider this group as an individual one by this feature too. Adsorption appeared as a subsidiary taxonomic characteristic in the classification of Pasteurella multocida bacteriophages.
Insights
Bacteriophages infecting Pasteurella multocida showed varied adsorption rates. Group III phages exhibited slower adsorption, supporting their classification as a distinct group based on this characteristic.
Area of Science:
- Microbiology
- Virology
- Bacteriology
Context:
- Pasteurella multocida is a significant bacterial pathogen.
- Bacteriophages are viruses that infect bacteria and are potential therapeutic agents.
- Understanding phage-host interactions is crucial for phage therapy development.
Purpose:
- To investigate the adsorption kinetics of different Pasteurella multocida bacteriophage groups.
- To evaluate the potential of adsorption as a taxonomic characteristic for classifying these phages.
- To compare phage adsorption in different media (broth vs. buffer).
Summary:
- Eight strains of Pasteurella multocida bacteriophages, categorized into three groups, were studied for their adsorption patterns.
- Groups I and II phages achieved 98-99% adsorption in broth within 80 minutes, while Group III phages reached 96-97% adsorption by 140 minutes, indicating slower kinetics.
- Adsorption in veronal-medinal buffer was consistently slower for all groups compared to broth. Cross-testing revealed specific adsorption patterns, with Group I phages showing broader host adsorption than Groups II and III.
- The distinct adsorption profile of Group III phages supports their classification as a separate group.
Impact:
- Adsorption kinetics can serve as a supplementary taxonomic marker for Pasteurella multocida bacteriophages.
- This research contributes to the characterization of phages for potential applications in controlling Pasteurella multocida infections.
- Findings aid in the rational selection and application of bacteriophages in veterinary medicine.