1. Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Nada-ku, Kobe, Hyogo 657-8501, Japan
2. Research Development, Fujicco Company Ltd., Chuou-ku, Kobe, Hyogo 650-8558, Japan
3. College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi 487-8501, Japan