Science fiction! Years ago, a relative did Actual Research (lab and all) on a particular fungus (cryptococcus, I think), and I knew melanin was an ionizing radiation and oxidation absorber used by fungi as a defense mechanism, but this….
«Further research discovered that C. sphaerospermum and some other black fungi species, like Wangiella dermatitis and Cryptococcus neoformans, possessed melanin, the pigment responsible for human skin color. However, in these fungi, the melanin served a different purpose: it absorbed radiation, which was then converted into usable energy, allowing it to grow in areas with intense radioactive exposure.»
Here, Read This 