Issue |
Ann. Parasitol. Hum. Comp.
Volume 64, Number 2, 1989
|
|
---|---|---|
Page(s) | 89 - 99 | |
DOI | https://doi.org/10.1051/parasite/198964289 | |
Published online | 22 August 2016 |
Mémoire
Ultrastructure of Eimeria (s. l.) sp. infecting the microvillar zone of the intestinal epithelium of Geckoes
Ultrastructure de Eimeria s. l. sp. infestant la zone des microvillosités de l’épithélium intestinal de geckos
Department of Animal Sciences, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, 76-100, Israel.
Accepted: 6 July 1988
Eimeria s. l. sp. infecting gut epithelium of the geckoes Hemidactylus turcicus from Israel and H. mabouia from South Africa developed at the microvillar border of gut epithelial cell. Infected portion of the host cell, containing the parasite enclosed in a parasitophorous envelope, bulged above the epithelial layer into the intestinal lumen. The envelope was formed by merging of the host cell wall and the parasitophorous vacuole membrane. Meront and gamont stages conformed ultrastructurally with those of eimerian coccidia of mammalian and avian hosts. In the process of wall formation appeared five membranes derived from the oocyst wall, which supported the formation of an outer and inner oocyst wall.
Résumé
Eimeria s. l. sp. infestant l’épithélium intestinal des geckos Hemidactylus turcicus d’Israël et H. mabouia d’Afrique du Sud se développe au niveau des microvillosités des cellules épithéliales de l’intestin. Les portions infestées de la cellule hôte, contenant le parasite inclus dans une enveloppe parasitophore, font saillies hors de la couche épithéliale, dans la lumière intestinale. L’enveloppe est formée par la jonction de la paroi de la cellule hôte et la membrane de la vésicule parasitophore. L’ultrastructure des stades de mérontes et de gamontes se conforme à celle des coccidies de type Eimeria des hôtes mammifères et oiseaux. Au cours du processus de formation de la paroi apparaissent cinq membranes dérivées de la paroi de l’oocyte, qui supportent la formation des parois externe et interne de l’oocyte.
Key words: Ultrastructure / Eimeria / Geckoes / Hemidactylus / Intestine / Microvillar zone
Mots clés : Ultrastructure / Eimeria / Gecko / Hemidactylus / Intestin / Zone des microvillosités
© Masson, Paris 1989, transferred to Société Française de Parasitologie
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.