1. Faculty of Arts and Science, Kyushu University, Motooka, Nishi-ku, Fukuoka, Japan
2. Microbial Genetic Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
3. Department of Biomedical Engineering, Faculty of Engineering, Osaka Institute of Technology, Asahi-ku, Osaka, Japan