Scanning electron microscope observations on the monogenean skin parasite Macrogyrodactylus congolensis [Prudhoe, 1957] Yamaguti, 1963

• Autorzy: Arafa S Z , El-Naggar M M , Kearn G C
• Języki publikacji: EN

Abstrakty

EN

The anterior adhesive areas and haptor of the viviparous monogenean skin parasite Macrogyrodactylus congolensis were studied using scanning electron microscopy (SEM). The worm has two head lobes, each provided with a single, ventrally located adhesive area. This adhesive area has few adhesive papillae. The tegument covering the adhesive papillae is microvillous and penetrated by many small and a few large gland duct openings. There is a single spike-like and a dome-shaped sense organ associated with each adhesive area. The possible functions of the microvilli and sensory structures and the role they might play in the temporary attachment of the adhesive areas are discussed. The haptor is cup-shaped and possesses an anterior and two lateral rows of papillae, the possible function of which was also discussed. There is good evidence to suggest a suctorial mechanism for the haptor during its attachment to the host skin and fins. The hamuli may insert into the host tissue while the marginal hooklets were found to play a relatively small part in attachment.

Słowa kluczowe

EN

parasite; adhesive area; skin; monogenean parasite; Clarias gariepinus; Macrogyrodactylus congolensis; Monogenea; scanning electron microscopy; freshwater fish; host skin; fin

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 2003
• Tom: 48
• Numer: 3
• Opis fizyczny: p.163-171,fig.

Twórcy

autor

Arafa S Z

• Zoology Department, Faculty of Sciences, Mansoura University, Mansoura, Egypt

autor

El-Naggar M M

• Zoology Department, Faculty of Sciences, Mansoura University, Mansoura, Egypt

autor

Kearn G C

• School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK

Bibliografia

• Arafa S.Z. 1999. Biological studies on some monogenean parasites of the teleost Clarias gariepinus in Dakahlia province. PhD Thesis, Faculty of Sciences, Mansoura University, Mansoura, Egypt.
• Cone D.K., Odense P.H. 1984. Pathology of five species of Gyrodactylus Nordmann, 1832 (Monogenea). Canadian Journal of Zoology, 62, 1084—1088.
• Cribb B.W., Whittington I.D., Chisholm L.A. 1997. Observations on the ultrastructure of the anterior glands in the monogenean, Monocotyle spiremae (Monocotylidae), from the gills of Himantura fai (Dasyatididae). International Journal for Parasitology, 27, 907-917.
• Doüellou L., Chishawa A.M. 1995. Monogeneans of three siluriform fish species in Lake Kariba, Zimbabwe. Journal of African Zoology, 109, 99-115.
• El-Naggar M.M. 1992. Scanning electron microscope studies on the head lobes and haptor of the monogenean Gyrodactylus groschafti Ergens, 1973. Journal of the Egyptian German Society of Zoology, Invertebrate Zoology and Parasitology, 8 (D), 435-445.
• El-Naggar M.M. 1993. Scanning electron microscope observations on the head lobes and haptor of the monogenean Macrogyrodactylus clarii Gussev, 1961. Journal of the Egyptian German Society of Zoology, Invertebrate Zoology and Parasitology, 10(D), 143-155.
• El-Naggar M.M., Kearn G.C. 1980. Ultrastructural observations on the anterior adhesive apparatus in the monogeneans Dactylogyrus amphibothrium Wagner, 1957 and D. hemiamphibothrium Ergens, 1956. Zeitschrift für Parasitenkunde, 61, 223-241.
• El-Naggar M.M., Kearn G.C. 1983. Glands associated with the anterior adhesive areas and body margins in the skin-parasitic monogenean Entobdella soleae. International Journal for Parasitology, 13, 67-81.
• El-Naggar M.M., Serag H.M. 1987. Redescription of Macrogyrodactylus clarii Gussev 1961, a monogenean gill parasite of Clarias lazera in Egypt. Arab Gulf Journal of Scientific Research. Agricultural and Biological Sciencey, 5, 257-271.
• El-Naggar M.M., Arafa S.Z., El-Abbassy S.A., Kearn G.C. 2001a. Chaetotaxy of the monogeneans Macrogyrodactylus clarii and M. congolensis from the gills and skin of the catfish Clarias gariepinus in Egypt, with a note on argentophilic elements in the nervous system. Folia Parasitologica, 48, 201-208.
• El-Naggar M.M., El-Naggar A.M., El-Abbassy S.A. 2001b. Microhabitat and movement of the viviparous monogeneans Gyrodactylus alberti, Macrogyrodactylus clarii and M. congolensis from the Nile catfish Clarias gariepinus. Journal of the Egyptian German Society of Zoology, Invertebrate Zoology and Parasitology, 35 (D), 169-187.
• El-Naggar M.M., Kearn G.C., Hagras A.E., Arafa S.Z. 1999. On anatomical features of Macrogyrodactylus congolensis viviparous monogenean ectoparasite of the catfish Ciarias gariepinus from Nile water. Journal of the Egyptian German Society of Zoology, Invertebrate Zoology and Parasitology 29 (D), 1-24.
• Ergens R. 1988. Paraquadriacanthus nasalis gen. et sp. n. (Monogenea: Ancyrocephalidae) from Clarias lazera Cuvier et Valenciennes. Folia Parasitologica, 35, 189-191.
• Gussev A.V. 1961. A viviparous monogenetic trematode from fresh-water basins of Africa. Doklady Akademii Nauk SSSR, 490-493.
• Harris P.D. 1982. Variations in the mechanism of attachmentin Gyrodactyloidea (Monogenea). Parasitology, (Proceedings of the British Society for Parasitology), 85.
• Harris P.D. 1983. The morphology and life cycle of theoviparous Oogyrodactylus farlowellae gen. et sp. nov. (Monogenea, Gyrodactylidae). Parasitology, 87,405-420.
• Kearn G.C. 1976. Observations on monogenean parasites from nasal fossae of European rays: Empruthotrema raiae (Mac-Callum, 1916) Johnston and Tiegs, 1922 and E.torpeinis nov. from Torpedo marmorata. Proceedings of the Institute of Biology and Pedology, Far Eastern Science Centre, Vladivostok, USSR, 34, 45-54.
• Kearn G.C., Evans-Gowing R. 1998. Attachment and detachment of the anterior adhesive pads of the monogenean (platyhelminth) parasite Entobdella soleae from the skin of the common sole (Solea solea). International Journal for Parasitology, 28, 1583-1593.
• Khalil L.F. 1970. Further studies on Macrogyrodactylus polypipteri, a monogenean on the African freshwater fish Polypterus senegalus. Journal of Helminthology, 44, 329-348.
• Kritsky D.C. 1978. The cephalic glands and associated structures in Gyrodactylus eucaliae Ikezaki and Hoffman, 1957 (Monogenea: Gyrodactylidae). Proceedings of the Helminthologt Society of Washington, 45, 37—49.
• Lester R.J.G. 1972. Attachment of Gyrodactylus to Gasterosteus and host response. Journal of Parasitology, 58, 717-722.
• Lyons K.M. 1970a. The fine structure of the outer epidermis oil viviparous monogenean Gyrodactylus sp. from the skin of Gasterosteus aculeatus. Journal of Parasitology, 56, 1110-1117.
• Lyons K.M. 1970b. The fine structure and function of the adult epidermis of two skin-parasitic monogeneans, Entobdella soleae and Acanthocotyle elegans. Parasitology, 60, 39-52.
• Lyons K.M. 1972. Sense organs of monogeneans. In: Behavioural aspects of parasitic transmission (Eds. E.U. Canning i C. A. Wright). Zoological Journal of the Linnean Society, 51, 19-30.
• Lyons K.M. 1973. The epidermis and sense organs of the Monogenea and some related groups. Advances in Parasitology, 11, 193-232.
• Malmberg G. 1957. On a new genus of viviparous trematodes. Arkiv för Zoologi, 10,317-330.
• Paperna I. 1961. Studies on the monogenetic trematodes in Israel III. Monogenetic trematodes of Cyprinidae and Claridae of the lake Galilee. Bamidgeh, 13, 14-29.
• Prudhoe S. 1957. Trematoda. Parc National de l’Upemba. I. Mission G.F. de Witte en collaboration avec. W.Adam, A. Janssens, L. Van Meel et R. Verheyen (1946-1949), 48,1-28,
• Rees J.A., Kearn G.C. 1984. The anterior adhesive apparatus and an associated compound sense organ in the skin-parasitic monogenean Acanthocotyle lobianchi. Zeitschrift für Parasitenkunde, 70, 609-625.
• Yamaguti S. 1963. Systema Helminthum. Vol. IV. Monogenea and Aspidocotylea. Interscience, New York.