Effect of Ionizing Radiations on Fungi in Vitro

Abstract
Since early reports1,2 it has become a legend and is generally agreed that fungi are resistant to the administration of ionizing radiations. The favorable result often noted in the treatment by x-rays of the inflammatory mycoses is generally attributed to the direct or indirect action of the rays on exudates and on the tissues of the host. This also holds true as the explanation for the cure achieved by roentgen epilation in tinea capitis. In reexamining the evidence of experimentation, it is well established that actual necrosis of bacteria and of fungi follow the administration of massive doses of ionizing radiations. The more subtle effects, as evidenced by inhibition of growth, by gross colony changes3 ( mutation, pleomorphism), and by alteration in reproductivity have also been observed when smaller doses of the rays are administered. The quality of radiation has been reported as important, with soft

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