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[The effect of DNA isolated from different sources and different physico-chemical conditions on Candida tropicalis

I I Danilenko

    Genetika
    |January 1, 1975
    PubMed

    Insights

    DNA from bacteria (Escherichia coli, Actinomyces olivaceus) and calf thymus shows mutagenic effects on a specific yeast strain (Candida tropicalis D-2). This study highlights DNA

    Area of Science:

    • Microbiology
    • Molecular Biology
    • Genetics

    Background:

    • DNA is the primary carrier of genetic information.
    • Mutagenic agents can alter DNA sequences.
    • Microbial and eukaryotic DNA sources are relevant for genotoxicity studies.

    Purpose of the Study:

    • To investigate the mutagenic potential of DNA from different sources.
    • To assess the genotoxic effect on a histidine-deficient yeast strain.

    Main Methods:

    • Isolation of DNA from Escherichia coli, Actinomyces olivaceus, and calf thymus.
    • Exposure of Candida tropicalis D-2 (histidine-deficient strain) to isolated DNA.
    • Observation and quantification of mutagenic effects.

    Main Results:

    • DNA isolated from Escherichia coli demonstrated mutagenic effects.
    • DNA isolated from Actinomyces olivaceus exhibited mutagenic activity.
    • Calf thymus DNA also showed mutagenic potential on the yeast strain.

    Conclusions:

    • DNA from diverse biological origins (bacterial and mammalian) can possess mutagenic properties.
    • Candida tropicalis D-2 serves as a sensitive model for detecting DNA mutagenicity.
    • The study confirms the mutagenic effect of isolated DNA on a microbial system.

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