1. Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA), Suwon 441-707, Korea.
2. Mushroom Research Division, National Institute of Horticultural * Herbal Science, RDA, Suwon 441-707, Korea.
3. National Agrobiodiversity Center, NAAS, RDA, Suwon 441-707, Korea.