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Characterization of the enveloped plasmavirus MVL2 after propagation on three Acholeplasma laidlawii hosts
Archives of Virology
|January 1, 1983
Abstract:
Plasmavirus MVL2 was propagated on three Acholeplasma laidlawii strains, JA1, S2, or BC1-13. Previously reported host-controlled modification (HCM) of MVL2, as reflected by changes in plating efficiency, was observed. Adsorption rates and one-step growth curves varied according to host used. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of the three MVL2 populations revealed differences in polypeptide profiles.
Insights
Plasmavirus MVL2 propagated on different Acholeplasma laidlawii hosts showed host-controlled modification (HCM). Viral adsorption, growth, and protein profiles varied based on the specific host strain used.
Area of Science:
- Microbiology
- Virology
- Molecular Biology
Background:
- Plasmavirus MVL2 is a virus that infects Acholeplasma laidlawii.
- Host-controlled modification (HCM) is a phenomenon where viruses acquire characteristics from their host cells.
- Previous studies have indicated HCM in MVL2, but detailed characterization across different host strains is limited.
Purpose of the Study:
- To investigate the impact of different Acholeplasma laidlawii host strains on the propagation and characteristics of Plasmavirus MVL2.
- To analyze host-controlled modification (HCM) of MVL2 by assessing viral plating efficiency, adsorption rates, growth curves, and polypeptide profiles.
Main Methods:
- Propagation of Plasmavirus MVL2 on three distinct Acholeplasma laidlawii strains (JA1, S2, BC1-13).
- Measurement of viral plating efficiency to assess host-controlled modification (HCM).
- Determination of adsorption rates and one-step growth curves for MVL2 propagated on each host.
- Analysis of polypeptide profiles using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE).
Main Results:
- Host-controlled modification (HCM) of Plasmavirus MVL2 was confirmed, evidenced by variations in plating efficiency across the tested Acholeplasma laidlawii strains.
- Significant differences in adsorption rates and one-step growth curves were observed depending on the host strain used for MVL2 propagation.
- Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) revealed distinct polypeptide profiles among the MVL2 populations derived from the different host strains.
Conclusions:
- The host strain significantly influences the biological and molecular characteristics of Plasmavirus MVL2.
- Host-controlled modification (HCM) affects viral adsorption, replication kinetics, and protein composition.
- These findings highlight the importance of host-virus interactions in shaping viral populations.