Summary
The growing stages of Aggregata eberthi, in the cuttlefish on the one hand (sexual generation), and in the crab on the other hand (asexual generation), are investigated.
The fine structure of the two stages is comparable. The cytoplasmic inclusions are those of all Sporozoa: mitochondria with short inner tubuli, dictyosomes in relationship with ergastoplasm, paraglycogen granules, lipoid vacuoles. The big nucleus contains a voluminous nucleolus. The wall consists in three unit-membranes, holed by micropores. Under the wall occurs an ergastoplasmic formation of a peculiar type.
The most striking difference between the trophozoïte and the schizont is the morphological aspect: the first one shows deep invaginations and there are protuberances on the second one.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Bibliographie
Aikawa, M., Hepler, P. K., Huff, C. G., Sprinz, H.: The feeding mechanism of avian malarial parasites. J. Cell Biol. 28, 353–373 (1966).
Bardele, C. F.: Elektronenmikroskopische Untersuchungen an dem Sporozoon Eucoccidium dinophili Grell. Z. Zellforsch. 74, 559–595 (1966).
Dobell, C.: The life history and chromosome cycle of Aggregata eberthi (Protozoa, Sporozoa, Coccidia) Parasitology 17, 1–136 (1925).
Grasse, P. P.: Traité de Zoologie I, fasc. II. Paris: Masson & Cie. 1952.
Heller, C., Scholtyseck, E.: Feinstruktur der Mikrogameten von Aggregata eberthi (Coccidia). IIInd Intern. Congr. on Protozool. Leningrad 63 (1969).
Léger, L., Duboscq, O.: L'évolution schizogonique de l'Aggregata (Eucoccidium) eberthi Labbe. Arch. of Protist. 12, 44–108 (1908).
Naville, A.: Recherches sur le cycle sporogonique des Aggregata. Rev. suisse Zool. 32, 125–179 (1925).
Porchet-Henneré, E.: Observations sur la Cytologie, l'Ultrastructure et la Physiologie de quelques Coccidies parasites d'Annélides Polychètes. Thèse Fac. Sc. Lille (1969).
—, Richard, A.: Structure fine du sporoblaste immature uninucléé d'Aggregata eberthi. C. R. Acad. Sci. (Paris) 269, 1681–1683 (1969).
Vivier, E., Henneré, E.: Ultrastructure des stades végétatifs de la Coccidie Coelotropha durchoni. Protistologica 1, 89–104 (1965).
- - Schrevel, J.: Etude de quelques caractères communs à diverses Grégarines et Coccidies. IInd Intern. Conf. on Protozool, London, p. 151 (1965).
Volkmann, B.: Vergleichend elektronenmikroskopische und lichtmikroskopische Untersuchungen an verschiedenen Entwicklungsstadien von Klossia helicina (Coccidia, Adeleidea). Z. Parasitenk. 29, 159–208 (1967).
Author information
Authors and Affiliations
Additional information
Ce travail a pu être effectué grâce à la collaboration technique de Madame C. Breda et Mademoiselle R. Coulombez, que nous remercions vivement.
Rights and permissions
About this article
Cite this article
Porchet-Henneré, E., Richard, A. Ultrastructure des stades végétatifs d'Aggregata eberthi Labbé: le trophozoïte et le schizonte. Z. Zellforsch. 103, 179–191 (1970). https://doi.org/10.1007/BF00337311
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00337311