Author's Organization:Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University Tabai Espec Co.