Affiliation: | (1) Applied Microbiology Department, Nishiki Research Laboratories, Kureha Chemical Industry Co., Ltd., Ochiai, 16, Nishiki, 974 Iwaki, Fukushima, Japan;(2) Department of Biological Sciences, Faculty of Science, Hiroshima University, 724 Higashi-Hiroshima, Japan;(3) Gene Experiment Center, Institute of Biological Sciences, University of Tsukuba, 305 Tsukuba, Ibaraki, Japan;(4) Present address: Department of Biology, Faculty of Science, Kyushi University, Higashiku, 812 Fukuoka, Japan |