Developmental surface ultrastructure of Macroorchis spinulosus in albino rats

  • Hong, Sung-Jong (Department of Parasitology, Chung-Ang University College of Medicine) ;
  • Woo, Ho-Chun (Department of Parasitology, College of Veterinary Medicine, Cheju National University) ;
  • Kwon, Oh-Sil (Department of Parasitology, Chung-Ang University College of Medicine)
  • Published : 2004.12.01

Abstract

Developmental surface ultrastructure of Macroorchis spinulosus was studied by scanning electron microscopy. One-day-old juvenile fluke was leaf-shaped and bent ventrally. Body surface was covered densely with peg-like spines and with cobblestone-like cytoplasmic processes. Ciliated sensory papillae were concentrated around oral sucker. Several unciliated sensory papillae occurred equidistantly on oral sucker and acetabulum. The ciliated papillae appeared in two longitudinal lines symmetric bilaterally on dorsal surface. On adult flukes, tegumantal spines became wider in middle of the body surface. The cytoplasmic processes differentiated into more fine velvety form. It is likely that the differentiated fine cytoplasmic processes are an increased absorptive surface to adult M. spinulosus. It is suggested that single pointed tegumental spines on anterior half of the body may be supportive for this fluke to migration.

Keywords

References

  1. Ando A (1918) On a new trematode with the fresh water crab as its intermediate host. Tokyo Iji Shinshi 2079: 10-17 (in Japanese)
  2. Ando A (1921) A contribution to the study of a new trematode, Macroorchis spinulosus n. g., n. sp., whose intermediate host is the crab. Nippon Biseibutsu Gakkai Zasshi 15: 813-826 (in Japanese)
  3. Chai JY, Sohn WM, Huh S, Choi MH, Lee SH (1996) Redescription of Macroorchis spinulosus Ando, 1918 (Digenea: Nanophyetidae) encysted in the fresh water crayfish, Cambaroides similis. Korean J Parasitol 34: 1-6 https://doi.org/10.3347/kjp.1996.34.1.1
  4. Fujino T, Ishii Y, Choi DW (1979) Surface ultrastructure of the tegument of Clonorchis sinensis newly excysted juveniles and adult worms. J Parasitol 65: 579-590 https://doi.org/10.2307/3280325
  5. Hong SJ, Chai JY, Lee SH (1991) Surface ultrastructure of the developmental stages of Heterophyopsis continua (Trematoda: Heterophyidae). J Parasitol 77: 613-620 https://doi.org/10.2307/3283168
  6. Hoole DH, Mitchell JB (1981) Ultrastructural observation on the sensory papillae of juvenile and adult Gorgoderina vitelliloba (Trematoda: Gorgoderidae). Int J Parasitol 11: 411-417 https://doi.org/10.1016/0020-7519(81)90014-X
  7. Ip HS, Desser SS (1984) Transmission electron microscopy of the tegumentary sense organs of Cotylogaster occidentalis (Trematoda: Aspidogastrea). J Parasitol 70: 563-575 https://doi.org/10.2307/3281407
  8. Køie M (1987) Scanning electron microscopy of rediae, cercariae, metacercariae and adults of Mesorchis denticulatus (Rudolphi, 1802) (Trematoda, Echinostomatidae). Parasitol Res 73: 50-56 https://doi.org/10.1007/BF00536336
  9. Lee SH, Hong SJ, Chai JY, Hong ST, Seo BS (1986) Tegumental ultrastructures of Echinostoma hortense observed by scanning electron microscopy. Korean J Parasitol 24: 63-70 https://doi.org/10.3347/kjp.1986.24.1.63
  10. Lee SH, Hong SJ, Chai JY, Seo BS (1985) Studies on intestinal trematodes in Korea. XV. Tegumental ultrastructures of Fibricola seoulensis according to developmental stages. Seoul J Med 26: 52-63
  11. Lee SH, Seo BS, Chai JY, Hong SJ (1984) Study on Metagonimus yokogawai (Katsurada, 1912) in Korea. VII. Electron microscopic observation on the tegumental structure. Korean J Parasitol 22: 1-10
  12. Machida M, Uchida A (1982) Some helminth parasites of the Japanese shrew mole from the Izu Peninsula. Mem Natl Sci Mus (Tokyo) 15: 149-154
  13. Morris GP, Threadgold LT (1967) A presumed sensory structure associated with the tegument of Schistosoma mansoni. J Parasitol 53: 537-539 https://doi.org/10.2307/3276711
  14. Page MR, Nadakavukaren MJ, Huizinga HW (1980) 156 Korean J. Parasitol. Vol. 42, No. 4. 151-157, December 2004 Rebeiroia marini: Surface ultrastructure of redia, cercaria, and adult. Int J Parasitol 10: 5-12
  15. Saito Y, Watanabe T, Yamashita T (1982) Two new intestinal trematodes, Macroorchis chimarrogalus n. sp. and Macroorchis elongatus n. sp. from Japanese water shrew and others, with a description of the metacercaria of Macroorchis chimarrogalus n. sp. (Trematoda: Nonophyetidae). Acta Med Biol 30: 47-56
  16. Smales LR, Blankespoor HD (1984) Echinostoma revolutum (Froelich, 1802) Loss 1899 and Isthmiophora melis (Schrank, 1788) Luche, 1909 (Echinostomatinae, Digenea): Scanning electron microscopy of the tegumental surface. J Helminthol 58: 187-195 https://doi.org/10.1017/S0022149X00026948
  17. Woo HC, Chai JY, Hong SJ (2003) Recovery, growth and development of Macroorchis spinulosus in albino rats. Korean J Parasitol 41: 27-33
  18. Woo HC, Seo MD, Hong SJ (1998) Surface ultrastructure of juvenile and adult stages of Centrocestus armatus. J Helminthol 72: 215-219 https://doi.org/10.1017/S0022149X00016461