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General Transduction in Vibrio cholerae

J E Ogg, T L Timme, M M Alemohammad

    Infection and Immunity
    |February 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    General transduction in Vibrio cholerae was demonstrated, enabling genetic analysis. This breakthrough facilitates detailed mapping of the V. cholerae chromosome using specific phage lysates.

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    Area of Science:

    • Microbiology
    • Genetics
    • Molecular Biology

    Background:

    • Vibrio cholerae is a significant human pathogen.
    • Understanding V. cholerae genetics is crucial for controlling cholera.
    • Previous genetic analysis methods for V. cholerae were limited.

    Purpose of the Study:

    • To establish a system of general transduction in Vibrio cholerae.
    • To demonstrate the transfer of genetic markers between different V. cholerae biotypes.
    • To optimize conditions for maximal transduction frequencies.

    Main Methods:

    • Utilized Vibrio cholerae strains of biotype eltor and biotype cholerae.
    • Employed transducing phage lysates to transfer genetic characters.
    • Irradiated phage lysates with ultraviolet light to enhance transduction frequencies.

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  • Transduced amino acid markers and antibiotic resistance characters.

    • Main Results:

    • Successfully demonstrated general transduction in V. cholerae.
    • Transferred genetic traits between biotype eltor and biotype cholerae strains.
    • Observed transduction frequencies ranging from 10(-5) to 10(-8).
    • Maximal transduction frequencies were achieved using UV-irradiated phage lysates.

    Conclusions:

    • Established a general transduction system for Vibrio cholerae.
    • This system is vital for fine structure analysis of the V. cholerae chromosome.
    • Paves the way for detailed genetic mapping of V. cholerae.