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Related Experiment Videos

[Plasmid DNA transduction in Bacillus subtilis].

N N Surikov, A A Prozorov

    Genetika
    |January 1, 1981
    PubMed
    Summary

    This study details Bacillus subtilis plasmid pUB110 transduction by AR9 phage. Optimal transduction occurred at low phage numbers, with UV irradiation enhancing frequencies of both plasmid and chromosomal markers.

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    Genetika·2009

    Area of Science:

    • Microbiology
    • Molecular Biology
    • Bacteriophage Research

    Background:

    • The pUB110 plasmid is a common tool in Bacillus subtilis genetics.
    • Bacteriophage transduction is a key mechanism for horizontal gene transfer.
    • Understanding phage-plasmid interactions is crucial for genetic manipulation.

    Purpose of the Study:

    • To investigate the transduction of the Bacillus subtilis pUB110 plasmid by the AR9 phage.
    • To characterize factors influencing plasmid transduction efficiency.
    • To explore the effect of UV irradiation on transduction frequencies.

    Main Methods:

    • Bacterial cultures of Bacillus subtilis harboring pUB110 plasmid.
    • Propagation and purification of AR9 phage.
    • Transduction assays to determine plasmid and chromosomal marker transfer.
    • UV irradiation of phage suspensions at varying doses.

    Main Results:

    • Plasmid transduction efficiency was dependent on the multiplicity of infection, with low phage numbers being optimal.
    • No evidence of cotransduction between the pUB110 plasmid and chromosomal markers was observed.
    • UV irradiation of AR9 phage suspensions significantly increased transduction frequencies for both plasmid and chromosomal markers within specific dose ranges.

    Conclusions:

    • AR9 phage can efficiently transduce the pUB110 plasmid in Bacillus subtilis.
    • Plasmid and chromosomal marker transduction share similar dependency on multiplicity of infection.
    • UV-inducible enhancement of transduction is a viable strategy to improve gene transfer efficiency.

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