Abstract
Using eight species of fungi collected in Japan, we determined the intensity of light emitted by cultured mycelia based on multiple isolates from a single fungal species after two different culture periods and at two different temperatures. The highest luminescent intensity was produced by isolates of Favolaschia peziziformis followed by Dictyopanus gloeocystidiatus, Armillaria mellea, Omphalotus japonicus, Pleurotus nitidus, Mycena chlorophos, Mycena manipularis, and Armillaria tabescens. There were significant differences within the three species that had more than five isolates, D. gloeocystidiatus, O. japonicus, and P. nitidus. All P. nitidus isolates showed greater intensitiy after incubation for 7 d than for 14 d. In contrast, incubation for 14 d yielded greater intensity in M. chlorophos, M. manipularis, and O. japonicus. For one isolate of D. gloeocystidiatus, one isolate of M. manipularis, and four isolates of O. japonicus, the luminescence were significantly more intense at 25℃ than at 15℃. Only one isolate each of D. gloeocystidiatus, M. chlorophos, and P. nitidus had lower intensity at 25℃ than 15℃. Eight isolates from four species showed the highest intensity at 520 nm. The intensity produced by one isolate of A. mellea gradually decreased during measurement for 16 h.
