Summary
The ultrastructure of Sarcocystis sp. from the Malaysian house rat, Rattus rattus diardii, was studied with the electron microscope. The thin, uniformly-dense primary cyst wall had a row of vesicular invaginations which were also seen along the wall of the villi-like projections or cytophaneres. Within the villi were spherical bodies and hollow, curled structures. The ground substance beneath the primary cyst wall extended into the cyst as thin septa or trabeculae separating the tightly-packed zoites into compartments. Merozoites had a double-layered membrane, a conoid, 2 conoidal rings, 22 subpellicular microtubules, 6 rhoptries, 80–100 micronemes, scattered lipid droplets, a sac-like mitochrondrion, beside which was a Golgi apparatus. A micropore was occasionally seen at the anterior third of the zoite whereas the nucleus occupied the posterior third. Metrocytes were few in number and peripheral in location.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Brown, R.J., Carney, W.P., Van Peenen, P.F.D.: Sarcocystis from rats in Sulawesi, Indonesia. S.E. Asian J. trop. Med. publ. Hlth 5, 451–452 (1974)
Carlos, E.R., Schaffer, B.T.: Sarcocystis in the Philippines: A histological review of 202 cases in rats. S.E. Asian J. trop. Med. publ. Hlth 3, 371–375 (1972)
Cross, J.H., Fresh, J.W., Jones, G.S.: Sarcocystis from rats of Central Java (Bojalali Regency). S.E. Asian J. trop. Med. publ. Hlth 4, 435 (1973)
Gestrich, R., Mehlhorn, H., Heydorn, A.-O.: Light and electron microscope studies on cysts of Sarcocystis fusiformis in the muscles of calves infected experimentally with oocysts and sporocysts of the large from of Isospora bigemina from cats. Zbl. Bakt. Hyg., I. Abt. Orig. A 233, 261–276 1975)
Harrison, J.L., Quah, S.K.: The house and field rats of Malaysia. Bull. No. 12, Institute for Medical Research, Malaysia (1962)
Holz, J., Liem, J.S.: The parasites of rat in West Java. Z. Parasitenk. 25, 405–412 (1965)
Kan, S.P., Dissanaike, A.S.: Ultrastructure of Sarcocystis booliati Dissanaike and Poopalachelvam, 1975 from the moonrat, Echinosorex gymnurus, in Malaysia. Int. J. Parasit. 6, 321–326 (1976)
Ludvik, J.: The electron microscopy of Sarcocystis miescheriana Kuhn, 1765. J. Protozool. 7, 128–135 (1960)
Mehlhorn, H., Heydorn, A.-O., Gestrich, R.: Light and electron microscope studies on cysts of Sarcocystis fusiformis in muscles of calves infected experimentally with oocysts and sporocysts of Isospora hominis Railliet et Lucet, 1891. I. The development of cyst and cyst wall. Zbl. Bakt. Hyg., I. Abt. Orig. A 231, 301–322 (1975)
Rzepczyk, C.: Evidence of a rat-snake cycle for Sarcocystis. Int. J. Parasit. 4, 447–449 (1974)
Rzepczyk, C., Scholtyseck, E.: Light and electron microscopic studies on the Sarcocystis of Rattus fuscipes, an Australian rat. Z. Parasitenk. 50, 137–150 (1976)
Shaw, J.J., Lainson, R.: Sarcocystis of rodents and marsupials in Brazil. Parasitology 59, 233–244 (1969)
Viles, J.M., Powell, E.C.: The ultrastructure of the cyst wall of a murine Sarcocystis. Z. Parasitenk. 49, 127–132 (1976)
Zaman, V., Colley, F.C.: Light and electron microscopic observations of the life-cycle of Sarcocystis orientalis sp. n. in the rat (Rattus norvegicus) and the Malaysian reticulated python (Python reticulatus). Z. Parasitenk. 47, 169–186 (1975)
Zaman, V., Colley, F.C.: Replacement of Sarcocystis orientalis Zaman and Colley, by Sarcocystis singaporensis sp. n. Z. Parasitenk. 51, 137 (1976)
Zeve, V.H., Price, D.L., Herman, C.M.: Electron microscope study of Sarcocystis spp. Exp. Parasit. 18, 338–346 (1966)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kan, S.P., Dissanaike, A.S. Ultrastructure of Sarcocystis sp. from the Malaysian house rat, Rattus rattus diardii . Z. F. Parasitenkunde 52, 219–227 (1977). https://doi.org/10.1007/BF00380541
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00380541