| Autor: |
Dos Santos CS; Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil. carolinespitz@yahoo.com.br., de Jesus VLT; Departamento de Avaliação e Reprodução Animal, Instituto de Zootecnia, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil., McIntosh D; Departamento de Parasitologia Animal, IV, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil., Carreiro CC; Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil., Batista LCO; Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil., do Bomfim Lopes B; Programa de Pós-Graduação em Ciência, Tecnologia e Inovação Agropecuária, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil., Neves DM; Horto Florestal Mário Xavier, Centro de Triagem de Animais Silvestres, Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis/IBAMA/Ministério do Meio Ambiente e Recursos Renováveis, Seropédica, RJ, 23835-400, Brazil., Lopes CWG; Departamento de Parasitologia Animal, IV, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil. |
| Abstrakt: |
Non-human primates are our closest relatives and represent an interesting model for comparative parasitological studies. However, research on this topic particularly in relation to intestinal parasites has been fragmentary and limited mainly to animals held in captivity. Thus, our knowledge of host-parasite relationships in this species-rich group of mammals could be considered rudimentary. The current study combined morphological, ultrastructural, and molecular analyses to characterize isolates of intestinal tetratrichomonads recovered from the feces of three species of South American, non-human primates. Fecal samples were collected from 16 animals, representing 12 distinct species. Parabasalid-like organisms were evident in five samples (31%) of feces: two from Alouatta sara, two from Callithrix penicillata, and one from Sapajus apella. The five samples presented morphologies consistent with the description of Tetratrichomonas sp., with four anterior flagella of unequal length, a well-developed undulating membrane, and a long recurrent flagellum. Sequencing of the ITS1-5.8S rRNA-ITS2 region demonstrated that the isolates from A. sara, and C. penicillata were closely related and highly similar to isolates of Tetratrichomonas brumpti, recovered previously from tortoises (Geochelone sp.). The flagellate recovered from S. apella demonstrated a similar morphology to those of the other isolates, however, sequence analysis showed it to be identical to an isolate of Tetratrichomonas sp. recovered from white-lipped peccaries (Tayassu pecari). The findings of this study extend and enhance our knowledge of parasitism of non-human primates by members of the genus Tetratrichomonas and indicate that the host range of these parasites is broader than previously believed. |
Full text from SpringerLink