Folia Parasitologica, vol. 64 (2017)

Folia Parasitologica 64:019 (2017) | DOI: 10.14411/fp.2017.019

Observations on non-random distribution of spores of Henneguya spp. (Cnidaria: Myxosporea: Myxobolidae) within plasmodia

Jorge C. Eiras1, Manuel Cruz2, Cristina Cruz1, Aurélia Saraiva1, Edson A. Adriano3,4, Csaba Székely5, Kálmán Molnár5
1 Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Matosinhos, Portugal;
2 Laboratório de Engenharia Matemática (LEMA), Instituto Superior de Engenharia do Porto, Portugal;
3 Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo (UNIFESP), Diadema, São Paulo, Brasil;
4 Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Brasil;
5 Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungary; Hungarian Academy of Sciences (MTA), Budapest, Hungary

Species of the cnidarian genus Henneguya Thélohan, 1892 (Myxosporea: Myxobolidae) are histozoic parasites commonly found in freshwater and, more rarely, in marine fish. The development of these parasites in fish tissues includes the formation of plasmodia within which occurs the sporogony originating spores with two caudal processes, which are usually randomly distributed within the plasmodia. In this report the authors present some cases of non-random distribution of the spores of six species of Henneguya within their plasmodia. Two different patterns of non-random distribution were found based on a literature survey. These patterns and their origin are discussed. Apparently this non-random distribution of the spores is due to both internal and external factors.

Keywords: Myxozoa, fish, parasites, spores arrangement, motility

Received: January 11, 2017; Accepted: June 13, 2017; Published online: June 20, 2017


References

  1. Adriano E.A., Arana S., Cordeiro N.S. 2005: Histology, ultrastructure and prevalence of Henneguya piaractus (Myxosporea) infecting the gills of Piaractus mesopotamicus (Characidae) cultivated in Brazil. Dis. Aquat. Org. 64: 229-235. Go to original source... Go to PubMed...
  2. Adriano E.A., Okamura B. 2017: Motility, morphology and phylogeny of the plasmodial worm, Ceratomyxa vermiformis n. sp. (Cnidaria: Myxozoa: Myxosporea). Parasitology 144: 158-168. Go to original source... Go to PubMed...
  3. Alama-Bermejo G., Bron J.E., Raga J.A., Holzer A.S. 2012: 3D morphology, ultrastructure and development of Ceratomyxa puntazzi stages: first insights into the mechanisms of motility and budding in the Myxozoa. PLoS ONE 7: e32679. Go to original source... Go to PubMed...
  4. Azevedo C., Matos E. 2002: Fine structure of the myxosporean, Henneguya curimata n. sp., parasite of the Amazonian fish, Curimata inornata (Teleostei, Curimatidae). J. Eukaryot. Microbiol. 49: 197-200. Go to original source... Go to PubMed...
  5. Campos C.M., Moraes J.R.E., Moraes F.R. 2011: Histopatologia de brânquias de Piaractus mesopotamicus (Holmberg, 1887) e Prochilodus lineatus (Valenciennes, 1836) parasitados por monogêneos e mixosporídios, capturados no Rio Aquidauana, Mato Grosso do Sul, Brasil. Rev. Bras. Parasitol. Vet. 20: 67-70. Go to original source... Go to PubMed...
  6. Cho J.B., Kwon S.R., Kim S.K., Nam Y.K., Kim K.H. 2004: Ultrastructure and development of Ceratomyxa protopsettae Fujita, 1923 (Myxosporea) in the gallbladder of cultured olive flounder, Paralichthys olivaceus. Acta. Protozool. 43: 241-250. Go to PubMed...
  7. Dyková I., Lom J. 2007: Histopathology of Protistan and Myxozoan Infections in Fishes. An Atlas. Academia, Praha, 219 pp.
  8. Eiras J.C. 2002: Synopsis of the species of the genus Henneguya Thélohan, 1892 (Myxozoa, Myxosporea, Myxobolidae). Syst. Parasitol. 52: 34-45. Go to original source... Go to PubMed...
  9. Eiras J.C., Adriano E.A. 2012: Checklist of the species of the genus Henneguya Thélohan, 1892 (Myxozoa, Myxosporea, Myxobolidae) described between 2002 and 2012. Syst. Parasitol. 83: 95-104. Go to original source... Go to PubMed...
  10. Eiras J.C., Pavanelli G.C., Ranzani Paiva M.J.T., Takemoto R.M. 1999: Gill histopathology of Piaractus mesopotamicus (Osteichthyes: Serrasalmidae) infected by Henneguya piaractus Martins et Souza, 1997 (Myxozoa: Myxobolidae). Res. Rev. Parasitol. 59: 117-120.
  11. Eiras J.C., Takemoto R.M., Pavanelli G.C. 2009: Henneguya corruscans n. sp. (Myxozoa, Myxosporea, Myxobolidae), a parasite of Pseudoplatystoma corruscans (Osteichthyes, Pimelodidae) from the Paraná River, Brazil: a morphological and morphometric study. Vet. Parasitol. 159: 154-158. Go to original source... Go to PubMed...
  12. Feist S.W., Morris D.J., Alama-Bermejo G., Holzer A.S. 2015: Cellullar processes in myxozoans. In: B. Okamura, A. Grhul and J.L. Bartholomew (Eds.), Myxozoan Evolution. Ecology and Development. Springer International Publishing, Cham, pp. 139-154.
  13. Grabner D.S., El-Matbouli M. 2010: Tetracapsuloides bryosalmonae (Myxozoa, Malacosporea) portal of entry into the fish host. Dis. Aquat. Org. 90: 197-206. Go to original source... Go to PubMed...
  14. Haaparanta A., Valtonen E.T, Hoffmann R.W. 1994: Pathogenicity and seasonal occurrence of Henneguya creplini (Protozoa, Myxosporea) on the gills of perch Perca fluviatilis in central Finland. Dis. Aquat. Org. 20: 15-24. Go to original source...
  15. Hartigan A., Estensoro I, Vancová M., Bílý T., Patra S., Eszterbauer E., Holzer A.S. 2016: New cell motility model observed in parasitic cnidarian Sphaerospora molnari (Myxozoa: Myxosporea) blood stages in fish. Sci. Rep. 6: 39093. Go to original source... Go to PubMed...
  16. Martins M.L., Souza V.N. 1997: Henneguya piaractus n. sp. (Myxozoa: Myxobolidae), a gill parasite of Piaractus mesopotamicus Holmberg, 1887 (Osteichthyes: Characidae), in Brazil. Rev. Brasil. Biol. 57: 239-245.
  17. Molnár K. 1998: Taxonomic problems, seasonality and histopathology of Henneguya creplini (Myxosporea) infection of the pikeperch Stizostedion lucioperca in Lake Balaton. Folia Parasitol. 45: 261-269. Go to PubMed...
  18. Moreira G.S.A., Adriano E.A., Silva M.R.M., Ceccarelli P., Maia A.A.M. 2014: Morphology and 18S rDNA sequencing identifies Henneguya visibilis n. sp., a parasite of Leporinus obtusidens from Mogi Guaçú River, Brazil. Parasitol. Res. 113: 81-90. Go to original source...
  19. Okamura B., Gruhl A., Bartholomew J.L. 2015: An Introduction to Myxozoan Evolution, Ecology and Development. In: B. Okamura, A. Grhul and J.L. Bartholomew (Eds.), Myxozoan Evolution. Ecology and Development. Springer International Publishing, Cham, pp. 1-20. Go to original source...
  20. Otsu N. 1979: A threshold selection method from Gray-Level histograms. IEEE Transact. Syst. Man Cybern. 9: 62-66. Go to original source...
  21. Overstreet R.M. 1976: Fabespora vermicola sp. n., the first myxoporidan from a platyhelminth. J. Parasitol, 62: 680-684. Go to original source... Go to PubMed...
  22. Sitjà-Bobadilla A., Palenzuela O., Alvarez-Pellitero P. 1995: Ceratomyxa sparusaurati n. sp. (Myxosporea: Bivalvulida), a new parasite from cultured gilthead seabream (Sparus aurata L.) (Teleostei: Sparidae): light and electron microscopic description. J. Euk. Microbiol. 42: 529-539. Go to original source...
  23. Weidner E., Overstreet R.M. 1979: Sporogenesis of a myxosporidian with motile spores. Cell Tissue Res. 201: 331-342. Go to original source... Go to PubMed...