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Parasitology Research

, Volume 86, Issue 12, pp 971–977 | Cite as

The fine structure of Garnia gonadati and its association with the host cell

  • José Antonio Picanço Diniz
  • Edilene Oliveira Silva
  • Ralph Lainson
  • Wanderley de Souza
ORIGINAL PAPER

Abstract

Most of the studies on the fine structure of protozoa of the Apicomplexa group have been carried out with members of the Toxoplasma, Eimeria, and Plasmodium genera. In the present study we analyzed the fine structure of Garnia gonadoti parasitizing the red blood cells of the Amazonian reptile Gonatodes humeralis (Reptilia: Lacertilia). Transmission electron microscopy of thin sections showed that G. gonadoti presented all structures characteristic of the group, including the apicoplast. However, four special features were observed: (1) absence of the hemozoin (malarial) pigment; (2) a group of microtubules associated with the mitochondrion; (3) a vacuole containing electron-dense material, which resembled the acidocalcisome described in trypanosomatids; and (4) a special array of the host-cell endoplasmic reticulum around the parasitophorous vacuole.

Keywords

Electron Microscopy Transmission Electron Microscopy Blood Cell Endoplasmic Reticulum Host Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • José Antonio Picanço Diniz
    • 2
  • Edilene Oliveira Silva
    • 3
  • Ralph Lainson
    • 4
  • Wanderley de Souza
    • 1
  1. 1.Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, CCS, Bloco G, Ilha do Fundão, 21941-900 Rio de Janeiro-RJ, Brazil e-mail: wsouza@biof.ufrj.br Tel.: +55-21-2602364; Fax: +55-21-2808193BR
  2. 2.Unidade de Microscopia Eletrônica, Instituto Evandro Chagas, Belem, Pará, BrazilBR
  3. 3.Departamento de Patologia, Centro de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, BrazilBR
  4. 4.Laboratório de Coccídeos, Instituto Evandro Chagas, Belém, Pará, BrazilBR

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