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Methodology for the Study of Horizontal Gene Transfer in Staphylococcus aureus
10:39

Methodology for the Study of Horizontal Gene Transfer in Staphylococcus aureus

Published on: March 10, 2017

Phage formation in Staphylococcus muscae cultures; further observations on the relationship between virus release and

W H PRICE

    The Journal of General Physiology
    |March 20, 1949
    PubMed

    Insights

    Virus release and cell lysis depend on infection levels. High infection correlates lysis with virus release, while a yeast fraction can induce lysis in low-infection scenarios, offering control over timing.

    Area of Science:

    • Virology
    • Cell Biology

    Background:

    • Understanding virus-induced cell lysis is crucial for antiviral therapies.
    • The relationship between virus replication, release, and host cell death is complex and infection-dependent.

    Purpose of the Study:

    • To investigate the correlation between virus release and cellular lysis under varying infection multiplicities.
    • To identify factors that can modulate the timing and occurrence of virus-induced cell lysis.

    Main Methods:

    • Experiments were conducted in Fildes medium with hydrolyzed casein.
    • Cellular lysis and virus release were monitored under low and high multiple infection conditions.
    • A non-dialyzable yeast fraction was isolated and added to cell cultures.

    Main Results:

    • At low infection multiplicities, virus release was not correlated with observable cell lysis.
    • High multiple infections led to earlier lysis, correlating with virus release, suggesting the virus particle accelerates lysis.
    • The yeast fraction induced earlier lysis and correlated it with virus release even in low infection conditions.
    • The concentration of the yeast fraction allowed for controlled timing of cell lysis in low-infection scenarios.

    Conclusions:

    • Virus particle itself can accelerate cellular lysis, particularly at high infection multiplicities.
    • A yeast-derived fraction can be used to synchronize and control virus-induced cell lysis.
    • These findings offer potential avenues for manipulating viral pathogenesis and developing novel therapeutic strategies.
    Keywords:
    STAPHYLOCOCCI/culture

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