Parasites, Hosts and Diseases

The Korea Society for Parasitology and Tropical Medicine (대한기생충학·열대의학회)
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Tegumental ultrastructure of the juvenile and adult Himasthla alincia (Digenea: Echinostomatidae)

  • Han, Eun-Taek (Department of Parasitology, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center) ;
  • Han, Kye-Young (Department of Orthopedic Surgery, Kangwon National University College of Medicine) ;
  • Chai, Jong-Yil (Department of Parasitology, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center)
  • Published : 2003.03.01
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Abstract

The tegumental ultrastructure of juvenile and adult Himasthla alincia (Digenea: Echinostomatidae) was observed by scanning electron microscopy. One-, 5- (juveniles) and 20-day-old worms (adults) were harvested from chicks experimentally fed metacercariae from a bivalve, Mactra veneriformis. The juvenile worms were elongated and cu wed ventrally. The head crown bore 31 collar spines, arranged in a single row. The lip of the oral sucker had 12 paired, and 3 single type 1 sensory papillae, and the ventral sucker had about 25 type II sensory papillae. The anterolateral surface between the two suckers was densely packed with tegumental spines with 4-7 pointed tips. The adult worms were more elongated and filamentous, and had severe transverse folds over the whole body surface. On the head crown and two suckers, type 1 and 11 sensory papillae were more densely distributed than in the juvenile worms. Retractile brush-like spines, with 8-10 digits, were seen on the anterolateral surface, whereas claw-shaped spines, with 2-5 digits, were sparsely distributed posteriorly to the ventral sucker The cirrus characteristically protruded out, and was armed with small spines distally. The surface ultrastructure of H. alincia was shown to be unique among echinostomes, especially in the digitation of its tegumental spines, the distribution of sensory papillae and by severe folds of the tegument.

Keywords

References

  1. Adams JE, Martin WE (1963) Life cycle of Himasthla rhigedana Dietz, 1909 (Trematoda: Echinostomatidae). Trans Am Micro Soc 82: 1-6.
  2. Chai JY, Han ET, Park YK, Guk SM, Lee SH (2001) Acanthoparyphium tyosenense: the discovery of human infection and identification of its source. J Parasitol 87: 794-800.
  3. Chapman HD, Wilson RA (1970) The distribution and fine structure of the integumentary papillae of the cercaria of Himasthla secunda (Nicoll). Parasitology 61: 219-227.
  4. Cheng TC, Shuster CN Jr, Anderson AH (1966) A comparative study of the susceptibility and response of eight species of marine pelecypods to the trematode Himasthla quissetensis. Trans Am Micro Soc 85: 284-295.
  5. Didyk AS, Burt MD (1997) Himasthla limnodromi n. sp. (Digenea: Echinostomatidae) from the short-billed dowitcher, Limnodromus griseus (Aves: Scolopacidae). J Parasitol 83: 1124-1127.
  6. Dietz E (1909) Die Echinostomiden der Vogel. Zool Anz 34:180-192.
  7. Fried B, Fujino T (1984) Scanning electron microscopy of Echinostoma revolutum (Trematoda) during development in the chick embryo and the domestic chick. Int J Parasitol 14: 75-81.
  8. Fried B, Irwin SWB, Lorry SF (1990) Scanning electron microscopy of Echinostoma trivolvis and E. caproni (Trematoda) adults from experimental infection in the golden hamster. J Nat Hist 24: 433-440.
  9. Han ET, Kim JL, Chai JY (2003) Recovery, growth, and development of Acanthoparyphium tyosenense (Digenea: Echinostomatidae) in experimental chicks. J Parasitol 89:(in press).
  10. Irwin SWB, Mckerr G, Judge BC, Moran I (1984) Studies on metacercarial excystment in Himasthla leptosoma (Tramatoda: Echinostomatidae) and newly emerged metacercariae. Int J Parasitol 14: 415-421.
  11. Koie M (1987) Scanning electron microscopy of rediae, cercariae, metacercariae and adults of Mesorchis denticulatus (Rudolphi, 1802) (Trematoda, Echinostomatidae). Parasitol Res 73: 50-56.
  12. Lee SH, Hong SJ, Chai JY, Hong ST, Seo BS (1986) Tegumental ultrastructure of Echinostoma hortense observed by scanning electron microscopy. Korean J Parasitol 24: 63-70.
  13. Lee SH, Jun HS, Sohn WM, Chai JY (1992) Tegumental ultrastructure of juvenile and adult Echinostoma cinetorchis. Korean J Parasitol 30: 65-74.
  14. Lee SH, Sohn WM, Hong ST, Seo BS (1987) Scanning electron microscopical findings of Echinochasmus japonicus tegument. Korean J Parasitol 25: 51-58.
  15. Loos-Frank B (1967) Experimentelle untersuchungen uber bau, entwicklung und systematik der Himasthlinae (Trematoda: Echinostomatidae) des Nordeseeraumes. Z Parasitenkd 28: 299-351.
  16. Lumsden RD (1962) Four echinostome trematodes from Louisiana birds including the description of a new species. Tulane studies in Zool 9: 301-308.
  17. Maldonado A Jr, Loker ES, Morgan JA, Rey L, Lanfredi RM (2001) Description of the adult worms of a new Brazilian isolate of Echinostoma paraensei (Plathyhelminthes: Digenea) from its natural vertebrate host Nectomys squamipes by light and scanning electron microscopy and molecular analysis. Parasitol Res 87: 840-848.
  18. Secord ML, Canaris AG (1993) The metazoan parasite community of migrating greater yellowlegs, Tringa melanoleuca, from the Rio Grande Valley, Texas and New Mexico. J Parasitol 79: 690-694.
  19. Smales LR, Blankespoor HD (1984) Echinostoma revolutum (Froelich, 1802) Looss, 1899 and Isthmiophora melis (Schrank, 1788) Luhe, 1809 (Echinostomatidae, Digenea): scanning electron microscopy of the tegumental surface. J Helminthol 58: 187-195.
  20. Sohn WM, Woo HC, Hong SJ (2002) Tegumental ultrastructures of Echinoparyphium recurvatum according to developmental stages. Korean J Parasitol 40: 67-73.
  21. Stunkard HW (1938) The morphology and life cycle of the trematode Himasthla quissetensis (Miller and Northup, 1926). Biol Bull 131: 145-164.
  22. Stunkard HW (1960) Further studies on the trematode genus Himasthla with descriptions of H. mcintoshi n. sp., H. piscicola n. sp., and stages in the life history of H. compacta n. sp. Biol Bull 119: 529-549.
  23. Stunkard HW (1966) The morphology and life history of the digenetic trematode, Himasthla littorinae sp. n. (Echinostomatidae). J Parasitol 52: 367-372.
  24. Tesana S, Kanla P, Maleewong W, Kaewkes S (1987) Scanning electron microscopy of adult Echinstoma malayanum. Southeast Asian J Trop Med Public Health 18: 233-240.
  25. Vogel H (1933) Himasthla muehlensi n sp., ein neuer menschlicher Trematode der Familie Echinostomidae. Zbl Bakt Parasitol I Abt Org 127: 385-391.
  26. Yamaguti S (1958) Systema helminthum. Vol. (Part I and II) The digenetic trematodes of vertebrates. Interscience Publishers Inc., New York and London.