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Inactivation of the T-even coliphages by pyrophosphate

H VAN VUNAKIS, R M HERRIOTT

    Journal of Bacteriology
    |March 1, 1962
    PubMed

    Insights

    Pyrophosphate effectively inactivates T-even coliphages by releasing their deoxyribonucleic acid. This inactivation process is influenced by various environmental factors and can be blocked by specific ions and molecules.

    Area of Science:

    • Microbiology
    • Molecular Biology
    • Biochemistry

    Background:

    • T-even coliphages are bacterial viruses extensively studied for their structure and replication mechanisms.
    • Understanding phage-host interactions and inactivation pathways is crucial for virology research.

    Purpose of the Study:

    • To investigate the mechanism by which pyrophosphate inactivates T-even coliphages.
    • To determine the factors influencing this inactivation reaction.

    Main Methods:

    • Exposure of T-even coliphages to pyrophosphate under varying conditions.
    • Analysis of deoxyribonucleic acid (DNA) release from phages.
    • Assessment of inhibitory effects of magnesium, polyamines, and other molecules.

    Main Results:

    • Pyrophosphate was found to liberate deoxyribonucleic acid (DNA) from T-even coliphages, leading to inactivation.
    • The reaction rate was dependent on pH, temperature, incubation time, and the ionic environment.
    • Magnesium ions, putrescine, spermidine, and high molecular weight neutral molecules inhibited the pyrophosphate-induced inactivation.

    Conclusions:

    • Pyrophosphate is an effective agent for inactivating T-even coliphages through DNA release.
    • The inactivation mechanism is sensitive to environmental conditions and can be modulated by specific chemical agents.
    • The findings provide insights into the structural integrity of T-even coliphages and potential mechanisms of their disruption.
    Keywords:
    BACTERIOPHAGE/pharmacologyPYROPHOSPHATES/pharmacology

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