Source: Development Growth & Differentiation, Volume 39, Number 2, April 1997, pp. 135-141(7)
Document Type: Research Article
Affiliations: 1: Department of Biology, Faculty of General Education, Kumamoto University, Kumamoto City 860, Japan. 2: Natural Environmental Science, Graduate School of Science and Technology, Kumamoto University, Kumamoto City. 3: Department of Biology, Faculty of Education, Miyazaki University, Miyazaki City, Miyazaki 889-21, Japan.
Publication date: April 1, 1997