Radiotrophic fungus

Radiotrophic fungi are fungi that can perform the biological process called radiosynthesis, which means using ionizing radiation as a main energy source to drive metabolization. It has been claimed that radiotrophic fungi have been found in extreme environments such as in the Chernobyl Nuclear Power Plant.

Most radiotrophic fungi use melanin in some capacity to survive. The process of using radiation and melanin for energy has been termed radiosynthesis, and is thought to be analogous to anaerobic respiration. However, it is not known if multi-step processes such as photosynthesis or chemosynthesis are used in radiosynthesis.