Histo-architectural alterations induced by Euclinostomum heterostomum (metacercariae) infected liver of Channa punctata (Bloch)
Tóm tắt
Present investigation was carried out to study the effect of digenetic trematode, Euclinostomum heretostomum on the histo-architecture of liver of Channa punctata. In case of mild infection, the metacercariae were found attached to the external surface of hepatic tissue. While in case of acute or chronic infection, the encysted metacercariae of Euclinostomum heterostomum were found deeply embedded in the entire hepatic tissue due to which liver appeared thin, compressed and pale with yellowish- black nodules of encysted metacercariae. A space occupying cavity is created by the metacercarial cysts due to which tissue appeared in the form of lumps. Histo-architectural alterations induced by parasite included degeneration, compression and loosening of hepatic tissue with enucleated and deshaped hepatocytes.
Tài liệu tham khảo
Beverly-Burton M (1963) A new strigeid Diplostomum mashonense n. sp. (Trematoda: Diplostomatidae) from the Grey Heron, Ardea cinerea L. in Southern Rhodesia with an experimental demonstration of part of the life cycle. Revue Zool Bot Afr 49:41–51
Bhagavathiammai A, Ramalingam K (1983) Free amino acid patterns in infected and uninfected liver of Channa punctatus vis- a–vis the metacercaria of Euclinostomum heterostomum. Rivista de Parasitology 44:317–324
Bychowsky BE (1962) Monogenetic trematodes: their systematic and phylogeny. Graphic Arts Press, p. 242
Gibson DI, Jones A, Bray RA (2001) Keys to trematoda of vertebrates Vol. 1. CABI and Natural History Museum, Wallingford
Gupta AK, Agarwal SM (1983) Host parasite relationships in Channa punctatus and Euclinostomum heterostomum. Curr Sci 52:474–476
Harris KK, Chouhan K, Gupta AK (2005) Pathology and histochemistry of Euclinostomum heterostomum Rudolphi, 1925 (Trematoda: Clinostomatidae) metacercarial infection in the snakehead Channa punctatus Bloch, with remarks on the chemical nature of the cyst. J Parasit Appl Anim Biol 14(1 & 2):9–18
Jhansilakshmibai K, Madhavi R (1997) Euclinostomum heterostomum (Rudolphi, 1809) (Trematoda): life-cycle, growth and development of the metacercariae and adult. Syst Parasitol 38:51–64
Mitchell LG, Gmal J, Batly WC (1983) Melanotic visceral fibrosis associated with larval infections of Posthodiplostomum minimum and Proteocephalus sp. in blue gill Lepomis macrochirus Rafiesque, in central Jowa, U.S.A. J Fish Disc 6:135–155
Rudolphi CA (1809) Entozoorum sive vermium̄ intestinalium historia naturalis, vol 2, part 1. Amstelaedami, pp 457
Sommerville C (1982) The pathology of Haplorchis pumilio (Looss, 1896) infection in cultured tilapias. J Fish Dis 5:243–250
Tubangui MA, Masilungan VA (1935) Trematode parasites of Philippine vertebrates.VII. Philipp J Sci 58:435–445
Yamaguti S (1958–1963) Systema helminthum vols.1–5 Wiley (Interscience), New York
Yekutiel D (1985) Metacercaria infections of cichlid fry in Lake Kinneret. M.Sc Thesis, Hebrew Universitȳ of Jerusalem (Hebrew text, English summary)