- Invertebrates
- Published:
Intracoelomic parasitic Sporozoa in the burrowing spatangoid echinoidEchinocardium cordatum: coelomocyte reaction and formation of brown bodies
Helgoländer Meeresuntersuchungen volume 37, pages 225–231 (1984)
Abstract
Echinocardium cordatum frequently harbours in its coelomic cavity the protozoan parasiteLithocystis schneideri. Motile stages of this gregarine (trophozoites and gamonts) may be surrounded by echinoid coelomocytes which show a peculiar transformation of their shape (i.e. each cell develops a single spine-like extension giving a pincushion aspect to the parasite). Encysted stages of the gregarine (gametocysts and sporocysts) are found mostly within brown bodies. Brown bodies are particular mesothelium-covered formations occurring usually in the coelomic cavity ofE. cordatum. It is suggested that brown bodies naturally originate from detached fragments of mesenteries.
Literature cited
Arvy, L., 1957. Contribution à la connaissance des “corps bruns” des Holothuridae. — C. r. hebd. Séanc. Acad. Sci., Paris245 2543–2545.
Bachman, S., Pohla, H. & Goldschmid, A., 1980. Phagocytes in the axial complex of the sea urchin,Sphaerechinus granularis (Lam.). Fine structure and X-ray microanalysis. — Cell Tiss. Res.213 109–120.
Brownell, C. L. & MacCauley, J. E., 1971. Two new parasites (Protozoa: Telosporea) from the spatangoid urchinBrisaster latifrons. — Zool. Anz.186 141–147.
Cuénot, L., 1891. Protozoaires commensaux et parasites des échinodermes (note préliminaire). — Revue Biol. Nord Fr.3 285–300.
Cuénot, L., 1892. Commensaux et parasites des échinodermes (deuxième note). — Revue Biol. Nord Fr.5 1–22.
Fauré-Frémiet, E., 1926. Différents états morphologiques des amibocytes d'Echinocardium cordatum. — C. r. Séanc. Soc. Biol.95 548–550.
Hetzel, H. R., 1965. Studies on holothurian coelomocytes. II. The origin of coelomocytes and the formation of brown bodies. — Biol. Bull. mar. biol. Lab., Woods Hole128 102–111.
Jangoux, M. & Schaltin, P., 1977. Le complexe axial dePsammechinus miliaris (Gmelin) (Echinodermata, Echinoidea). — Archs Zool. exp. gén.118 285–303.
Léger, L., 1896. L'évolution duLithocystis schneideri parasite de l'Echinocardium cordatum. — C. r. hebd. Séanc. Acad. Sci., Paris123 702–705.
Léger, L., 1897. Contribution à la connaissance des sporozoaires parasites des échinodermes, étude sur leLithocystis schneideri. — Bull. scient. Fr. Belg.30 240–264.
Pixell-Goodrich, H. L. M., 1915. On the life history of the Sporozoa of spatangoids, with observations on allied forms. — Q. Jl microsc. Sci.61 81–104.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
De Ridder, C., Jangoux, M. Intracoelomic parasitic Sporozoa in the burrowing spatangoid echinoidEchinocardium cordatum: coelomocyte reaction and formation of brown bodies. Helgolander Meeresunters 37, 225–231 (1984). https://doi.org/10.1007/BF01989307
Issue Date:
DOI: https://doi.org/10.1007/BF01989307