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　Acanthamoeba astronyxis

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Small free-living amoebae belonging to the genus Acanthamoeba are the most common amoebae found in the soil and the other various environments.
The life cycle of Acanthamoeba is divided into two stages: the trophozoite and the cyst. The cyst of Acanthamoeba is characterized by a double walled envelope(exocyst and endocyst).

by T. Tsuruhara　鶴原　喬（東京学芸大）

1. 形態
   外部形態
   

   Similar species: A. albida, A. comandoni, A. tubiashi
   

   内部形態
   

2. 生態
   

3. 遺伝
   

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LINKS

References

1. Sawyer, T.K. and Griffin, J.L., 1975, A proposed new family, Acanthamoebidae n. fam. (Order Amoebida) for certain cyst-forming filose amoebae., Trans. Amer. Microscop. Soc., 94, 93-98.
2. Page, F.C., 1967, Redefinition of the genus Acanthamoeba with diagnosis of three species., J. Protozool., 14, 709-724.
3. Page, F.C., 1976, An illustrated key to freshwater and soil amoebae, Freshwater Biological Association, Scientific Publicaton No. 34, Titus Wilson & Son Ltd.

4. Hausmann & Hülsmann, 1996, Protozoology, Thieme Medical Pub.
5. 岩波・生物学辞典・第４版, 1996, 岩波書店.
6. Margulis, L., Corliss, J.O., Melkonian, M. and Chapman, D.J. (eds.) , 1990, Handbook of Protoctista. Jones and Bartlett, Boston.
7. ハウスマン, 扇元訳, 1989, 原生動物学入門、弘学出版.
8. Margulis & Schwartz, 1988, Five Kingdoms; An illustrated guide to the phyla of life on earth., Second edition, Freeman and Company.
9. Lee, J.J., Hutner, S.H. & Bovee, E.C. (eds.), 1985, An Illustrated Guide to the Protozoa., Society of Protozoologists.
10. 猪木正三監修, 1981, 原生動物図鑑, 講談社サイエンティフィク.
11. Kudo, R.R., 1966, Protozoology 5th ed., Charles C Thomas Publisher.