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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 95, No. 1, 2000, pp. 43-47
Bioline Code: oc00006
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 95, No. 1, 2000, pp. 43-47

 en The Fine Structure of the Endogenous Stages of Isospora hemidactyli Carini, 1936 in the Gecko Hemidactylus mabouia from North Brazil
I Paperna & R Lainson

Abstract

The ultrastructure is described of the meronts, microgamonts and young oocyst stages of Isospora hemidactyli of the gecko Hemidactylus mabouia from Belém, PA, north Brazil. The endogenous stages all develop in the nucleus of the gut epithelial cells. The nucleus remains intact up to the latest stages of the parasite's development, but degenerates by the time the oocyst appears. Merogonic division appears to be asynchronous, and some of the differentiated merozoites contained more than one nucleus. Microgamonts conform in structure with those of other eimeriids. Some of the type 2 wall-forming bodies disintegrate into smaller globules and ground substance of lower density.

Keywords
Isospora hemidactyli - endogenous stages - ultrastructure - Hemidactylus mabouia - gecko - Brazil

 
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