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Bacteriophages of Streptococcus equi

J G Spanier, J F Timoney

    The Journal of General Virology
    |May 1, 1977
    PubMed
    Summary

    Bacteriophages isolated from Streptococcus equi were classified into two groups. These phages alter the colonial morphology of Streptococcus equi, potentially impacting its virulence.

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    Area of Science:

    • Microbiology
    • Virology
    • Bacteriology

    Background:

    • Streptococcus equi is a significant pathogen.
    • Lysogenic bacterial strains harbor bacteriophages.
    • Bacteriophages can influence bacterial characteristics.

    Purpose of the Study:

    • To isolate and characterize bacteriophages from lysogenic Streptococcus equi strains.
    • To investigate the effects of these bacteriophages on Streptococcus equi morphology and potential virulence.

    Main Methods:

    • Isolation of bacteriophages from twelve Streptococcus equi strains.
    • Phage characterization using sensitivity data.
    • Antiserum neutralization tests for phage grouping.

    Main Results:

    • Twelve bacteriophages were successfully isolated.
    • Phages were categorized into two distinct, related groups.
    • All isolated phages induced a change in Streptococcus equi colonial morphology from mucoid to matt.

    Conclusions:

    • Bacteriophages can be isolated from lysogenic Streptococcus equi.
    • Two distinct phage groups were identified.
    • Phage-induced alterations in colonial morphology suggest potential impacts on bacterial virulence, warranting further investigation.

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