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Alteration of mutation frequency by treatment with actinomycin D

W J BURDETTE

    Science (New York, N.Y.)
    |January 6, 1961
    PubMed

    Insights

    Actinomycin D treatment significantly reduced lethal mutations in irradiated fruit flies (Drosophila melanogaster). This compound also inhibited the development of atypical growths, suggesting a protective effect against radiation-induced damage.

    Area of Science:

    • Genetics
    • Radiation Biology
    • Toxicology

    Background:

    • Lethal mutations can arise from environmental stressors like radiation.
    • Melanotic atypical growths are abnormal tissue developments observed in certain organisms.

    Purpose of the Study:

    • To investigate the effect of actinomycin D on lethal mutation frequency in irradiated Drosophila melanogaster.
    • To determine if actinomycin D influences the occurrence of melanotic atypical growths.

    Main Methods:

    • Irradiation of male Drosophila melanogaster.
    • Treatment of irradiated males with actinomycin D.
    • Observation and quantification of lethal mutation frequency.
    • Assessment of melanotic atypical growths.

    Main Results:

    • Actinomycin D reduced the frequency of lethal mutations by approximately 50% in irradiated fruit flies.
    • The compound also inhibited the appearance of melanotic atypical growths.

    Conclusions:

    • Actinomycin D demonstrates a protective effect against radiation-induced lethal mutations in Drosophila melanogaster.
    • Actinomycin D may mitigate radiation-induced cellular damage, as evidenced by the inhibition of atypical growths.
    Keywords:
    ACTINOMYCIN/pharmacologyGENETICS/radiation effectsRADIATION EFFECTS/experimental

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