Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-23T07:34:32.486Z Has data issue: false hasContentIssue false
  • English
  • Français

Fine structure of zoosporulation in Perkinsus atlanticus (Apicomplexa: Perkinsea)

Published online by Cambridge University Press:  06 April 2009

C. Azevedo ,
L. Corral  and
R. Cachola
C. Azevedo
Affiliation:
Department of Cell Biology, Institute of Biomedical Sciences, University of Oporto, 4000 Porto, Portugal
L. Corral
Affiliation:
Department of Cell Biology, Institute of Biomedical Sciences, University of Oporto, 4000 Porto, Portugal
R. Cachola
Affiliation:
National Institute of Fisheries Research, 8000 Faro, Portugal
Get access Rights & Permissions [Opens in a new window]

Summary

Light and transmission electron microscopy were used to study different stages of Perkinsus atlanticus (Apicomplexa) during induced zoosporulation, with fluid thioglycollate medium and seawater. Cytokinesis and nucleokinesis of different developmental stages were studied every 12 h during the incubation period of 72 h, at which time the zoospores became free. Uninucleated and flagellated zoospores present the apical complex formed by conoid, polar ring, micronemes, rhoptries and subpellicular microtubules observed at different sections. Ultrastructural details were compared with the other two species of the genus Perkinsus.

Keywords

Perkinsus atlanticusApicomplexazoosporulation
Type
Research Article
Information
Parasitology , Volume 100 , Issue 3 , June 1990 , pp. 351 - 358
Copyright
Copyright © Cambridge University Press 1990

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

REFERENCES

Azevedo, C. (1989). Fine structure of Perkinsus atlanticus n. sp. (Apicomplexa, Perkinsea) parasite of the clam Ruditapes decussatus from Portugal. Journal of Parasitology 75, 627–35.Google Scholar
Canning, E. U. (1986). Terminology, taxonomy, and life-cycles of Apicomplexa. Insect Science and its Application 7, 319–25.Google Scholar
Chu, F.-L. E. & Greene, K. H. (1989). Effect of temperature and salinity on in vitro culture of the oyster pathogen, Perkinsus marinus (Apicomplexa, Perkinsea). Journal of Invertebrate Pathology 53, 260–8.Google Scholar
Goggin, C. L. & Lester, R. J. G. (1987). Occurrence of Perkinsus species (Protozoa, Apicomplexa) in bivalves from the Great Barrier Reef. Diseases of Aquatic Organisms 3, 113–17.Google Scholar
Lester, R. J. C. & Davis, G. H. (1981). A new Perkinsus species (Apicomplexa, Perkinsea) from the abalone Haliotis ruber. Journal of Invertebrate Pathology 37, 181–7.CrossRefGoogle Scholar
Levine, N. D. (1978). Perkinsus gen. n. and other new taxa in the protozoan Phylum Apicomplexa. Journal of Parasitology 64, 549.CrossRefGoogle Scholar
Levine, N. D. (1982). Apicomplexa. In Synopsis and Classification of Living Organisms (ed. Parker, S. P.), pp. 570–87. New York: McGraw Hill Book Company.Google Scholar
Levine, N. D., Corliss, J. O., Cox, F. E. G., Deroux, G., Grain, J., Honigberg, B. M., Leedale, G. F., Leoblich, A. R. III, Lom, J., Lynn, D., Merinfeld, E. G., Page, F. C., Poljansky, G., Sprague, V., Vavra, J. & Wallace, F. G. (1980). A newly revised classification of the Protozoa. Journal of Protozoology 27, 37–58.Google Scholar
Mackin, J. G., Owen, H. M. & Collier, A. (1950). Preliminary note on the occurrence of a new protistan parasite, Dermocystidiuin marinum n. sp. in Crassostrea virginica (Gmelin). Science 111, 328–9.CrossRefGoogle Scholar
Perkins, F. O. (1968). Fine structure of zoospores from Labyrinthomyxa sp. parasitizing the clam Macoma balthica. Chesapeake Science 9, 198–208.Google Scholar
Perkins, F. O. (1969). Ultrastructure of vegetative stages in Labyrinthomyxa marina (= Dermocystidium marinum), a commercially significant oyster pathogen. Journal of Invertebrate Pathology 13, 199–222.CrossRefGoogle ScholarPubMed
Perkins, F. O. (1976). Zoospores of the oyster pathogen, Dermocystidium marinum. I. Fine structure of the conoid and other sporozoan-like organelles. Journal of Parasitology 62, 959–74.CrossRefGoogle Scholar
Perkins, F. O. (1988). Structure of protistan parasites found in bivalve molluscs: In Disease Processes in Marine Bivalve Molluscs (ed. Fisher, W. S.), pp. 93–111. American Fisheries Society Special Publication No. 18.Google Scholar
Perkins, F. O. & Menzel, R. W. (1966). Morphological and cultural studies of a motile stage in the life-cycle of Dermocystidium marinum. Proceedings of the National Sheilfisheries Association 56, 23–30.Google Scholar
Perkins, F. O. & Menzel, R. W. (1967). Ultrastructure of sporulation in the oyster pathogen Dermocystidium marinum. Journal of Invertebrate Pathology 9, 205–29.Google Scholar
Ray, S. M. (1952). A culture technique for the diagnosis of infection with Dermocystidium marinum Mackin, Owen and Collier in oyster. Science 116, 360–1.Google Scholar