1. Laboratory of MicrobiologyAichi Gakuin University Graduate School of Pharmaceutical Science1‐100 Kusumoto‐choNagoyaAichi464‐8650Japan
2. Pathogenic Microbe LaboratoryResearch InstituteNational Center for Global Health and Medicine (NCGM)1‐21‐1 ToyamaShinjukuTokyo162‐8655Japan
3. Biological Resource Center (NBRC)National Institute of Technology and Evaluation (NITE)2‐5‐8 KazusakamatariKisarazu, Chiba292‐0818Japan
4. Division of Anaerobe ResearchLife Science Research CenterGifu University1‐1, Yanagido, Gifu501‐1194Japan
5. Center for Conservation of Microbial Genetic ResourceGifu University1‐1, Yanagido, Gifu501‐1194Japan
6. United Graduate School of Drug Discovery and Medical Information SciencesGifu University1‐1, Yanagido, Gifu501‐1193Japan