1. Department of Biology; Osaka Medical College; Takatsuki Osaka Japan
2. Laboratory of Silkworm Science; Faculty of Agriculture; Kyushu University; Fukuoka Japan
3. Laboratory of Marine Environmental Science; Department of Bioscience and Biotechnology; Faculty of Agriculture; Kyushu University; Fukuoka Japan
4. Laboratory of Bioresource Sciences; Faculty of Agriculture; Kyushu University; Fukuoka Japan