Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T03:30:36.318Z Has data issue: false hasContentIssue false
  • English
  • Français

Development of the alimentary tract during morphogenesis of the metacercariae of Levinseniella brachysoma

Published online by Cambridge University Press:  05 June 2009

K. V. Galaktionov  and
I.I. Malkova
K. V. Galaktionov
Affiliation:
Laboratory of Parasitology, Murmansk Marine Biological Institute, Dalnie Zelentzy, Murmanskaya obl., 184 631, Russia
I.I. Malkova
Affiliation:
Laboratory of Parasitology, Murmansk Marine Biological Institute, Dalnie Zelentzy, Murmanskaya obl., 184 631, Russia
Get access Rights & Permissions [Opens in a new window]

Abstract

For the first time the development of the alimentary tract of Levinseniella brachysoma metacercaria (Trematoda: Microphallidae) obtained experimentally from Gammarus oceanicus has been described. The foregut primordium in 16-day-old metacercariae is represented by a syncytial cylindrical cord, resulting from the fusion of embryonic cells. Non-fused parts of the plasma membranes of adjacent cells are revealed as gap cavities within the cord. Later (30th day post infection) the lumen of the foregut is formed as a result of both partial vacuolization of the cytoplasm and by a broadening of the gap cavities, resulting from a thinning of the cytoplasmic spaces between them. Besides the usual organelles, the foregut of the mature metacercaria (42nd day p.i.) contains dense secretory granules in the apical cytoplasm region and numerous microtubules in basal areas. The cellular gastrodermis is formed later than the foregut syncytium (on day 30 p.i.); its large cells contain well-developed Golgi complexes, RER and mitochondria. A noteable inclusion of the gastrodermal cells of mature metacercariae are spherical granules of moderate electron density measuring up to 3 μm in diameter. On the basis of an analysis of the ultrastructural data the possible functioning of the metacercarial alimentary tract is discussed.

Keywords

TrematodaLevinseniella brachysomametacercariaealimentary tractdevelopmentforegutcellular caecumultrastructure
Type
Research Papers
Information
Journal of Helminthology , Volume 67 , Issue 2 , June 1993 , pp. 87 - 94
Copyright
Copyright © Cambridge University Press 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bock, D. (1988) Formation, histochemistry and ultrastructure of the metacercarial cyst wall of Plagiorchis species 1 (Trematoda. Plagiorchiidae). International Journal for Parasitology, 18, 379–388.CrossRefGoogle Scholar
Bock, D. (1989) Hatching mechanism of the metacercaria of Plagiorchis species 1 (Trematoda: Plagiorchiidae). Journal of Helminthology. 63, 153–171.CrossRefGoogle Scholar
Cheng, T. C. (1961) Studies on the morphogenesis, development and germ cell cycle in the sporocysts and cercariae of Glypthelmins pennyslvaniensis Cheng, 1961 (Trematoda: Brachycoeliidae). Proceedings of the Pennsylvania Academy of Sciences, 35, 10–22.Google Scholar
Cheng, T. C. & Bier, J. W. (1972) Studies on molluscan schistosomaisis: an analysis of the development of the cercaria of Schistosoma mansoni. Parasitology, 64, 129–141.CrossRefGoogle Scholar
Cheng, T. C. & James, H. A. (1960) Studies on the germ cell cycle, morphogenesis and development of the cercarial stage of Crepidostomum cornutum (Osborn, 1903). Transactions of the American Microscopical Society, 79,75–85.Google Scholar
Davies, C. (1980) A comparative ultrastructural study of in vivo and in vitro derived adults of Microphallus similis. International journal for Parasitology, 10, 217–226.CrossRefGoogle Scholar
Dobrovolskij, A. A. (1965) [Some new data on life-history of the fluke Opisthioglyphe ranae Frochlich, 1791 (Plagiorchiidae)]. Helminthologia, 6, 205–221. (In Russian).Google Scholar
Dobrovolskij, A. A. (1971) [The life-history of Macrodera longicollis (Abildgaard, 1788) Luhe, 1909 (Trematoda, Ochetosomatidae)]. Vestnik Leningradskogo Universiteta, 15, Biological serie, 9–20. (In Russian).Google Scholar
Erasmus, D. A. (1977) The host-parasite interface of trematodes. Advances in Parasitology, 15, 201–242.CrossRefGoogle ScholarPubMed
Ferrer, J. R. (1986) Ciego intestinal de la cercaria de un trematodo digenetico felodistomatido, parasita del mejillon Mytilus edulis. Estudio ultrastructural. Revista Iberica de Parasitologia, 46, 245–255.Google Scholar
Galaktionov, K. V. (1980) [Parthenogenetic generations of trematodes of family Microphallidae Travassos, 1920 (development, reproduction, ecology)]. Ph.D. thesis, Leningrad State University. (In Russian).Google Scholar
Galaktionov, K. V. (1988) [Cercaria and metacercaria of Levinseniella brachysoma (Trematoda, Microphallidae) from the White Sea invertebrates. Parasitologia, 22, 304–311.] (In Russian).Google Scholar
Galaktionov, K. V. (1991) [The main regularities of evolution of microphallid trematodes. In: Evolution of Parasites (Proceedings of The First All-Union Symposium, Tolyatti, October 16–19, 1990)], pp. 128–131. Tolyatti. (In Russian).Google Scholar
Galaktionov, K. V. & Dobrovolskij, A. A. (1987) [Hermaphroditic Generation of Trematodes]. Leningrad: Nauka Press (in Russian).Google Scholar
Galaktionov, K. V. & Malkova, I. I. (1990) [Tegument structure of cercariae of microphallid trematodes. Parasitologia, 24, 301–308.] (In Russian).Google ScholarPubMed
Gerasyov, P. I. & Dobrovolskij, A. A. (1977) [Development of hermaphroditic generation of Astiotrema trituri (Trematoda, Plagiorchiidae]). Parazitologicheskii Sbornik, 27, 89–111. (In Russian).Google Scholar
Halton, D. W. (1982) An unusual structural organization of the gut of a digenetic trematode, Fellodistomum fellis. Parasitology, 85, 53–60.CrossRefGoogle Scholar
Halton, D. W. & McCrae, J. M. (1985) Development of the tegument and alimentary tract in a digenetic trematode, Fellodistomum fellis. Parasitology, 90, 193–204.CrossRefGoogle Scholar
Ioffe, B. I. & Chubrik, G. K. (1988) [The structure of trematode pharynx and phylogenetic connections of trematodes with turbellarians.] Parasitologia, 22, 297–303. (In Russian).Google Scholar
Lane, N. J. (1981) Tight junctions in arthropod tissues. International Review of Cytology, 73, 243–318.CrossRefGoogle Scholar
Pappas, P. W. (1988) The relative role of the intestines and external surfaces in the nutrition of monogeneans, digeneans and nematodes. Parasitology, 96, 105–121.CrossRefGoogle ScholarPubMed
Rees, F. G. (1983a) The ultrastructure of the fore-gut of the redia of Parochis acanthus Nicol (Digenea: Philophthalmidae) from the digestive gland of Nucella lapillus. L. Parasitology, 87, 151–158.Google Scholar
Rees, F. G. (1983b) The ultrastructure of the intestine of the redia of Parorchis acanthus Nicoll (Digenea: Philophthalmidae) from digestive gland of Nucella lapillus L. Parasitology, 87, 159–166.CrossRefGoogle Scholar
Robinson, R. D. & Halton, D. W. (1983) Functional morphology of the tegument of Corrigia vitta (Trematoda: Dicrocoelidae). Zeitschrift für Parasitenkunde, 69, 319–333.Google Scholar
Smyth, Y. D. & Halton, D. W. (1983) The Physiology of Trematodes, 2nd edn. Cambridge, Cambridge University Press.Google Scholar
Threadgold, L. T. (1984) Parasitic platyhelminthes. In: Biology of the Integument, Vol. 1, Invertebrates (Bereiter-Hahn, J., Matoltsky, A. G. & Richards, K. S., eds), pp. 132–191. Berlin, Springer.CrossRefGoogle Scholar
Tichomirov, I. A. (1980) [The life-history of Philophthalmus rhionica sp. nov. (Trematoda: Philophthalmidae).] Ph.D. thesis, Leningrad State University. (In Russian).Google Scholar
Wisniewski, L. V. (1958) The development cycle of Posthodiplostomum brevicaudatum (v. Nordmann, 1832) Kozicka, 1958. Acta Parasitologica Polonica, 6, 251–271.Google Scholar
Zavarzin, A. A. & Harazova, A. D. (1982) [The Principles of General Cytology.] Leningrad: Leningrad University Press. (In Russian).Google Scholar
Zdarska, Z., Sterba, J., Soboleva, T. N. & Valkounova, J. (1988) Ultrastructure of the digestive tract of Brachylaimus aequans (Trematoda: Brachylaimoidea). Folia Parasitologica, 35, 105–111.Google Scholar