Tamandua tetradactyla Linnaeus, 1758 (Myrmecophagidae) and Rhodnius robustus Larrousse, 1927 (Triatominae) infection focus by Trypanosoma rangeli Tejera, 1920 (Trypanosomatidae) in Attalea phalerata Mart. ex Spreng (Arecaceae) palm tree in the Brazilian Amazon
| Autor: | Myriam Harry, Fernando Braga Stehling Dias, Liléia Diotaiuti, Christine A Romaña, Marion Quartier |
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| Rok vydání: | 2010 |
| Předmět: |
Microbiology (medical)
Trypanosoma rangeli Disease reservoir Rhodnius Zoology Arecaceae Polymerase Chain Reaction Microbiology Trypanosomiasis biology.animal parasitic diseases Genetics Animals Chagas Disease Molecular Biology Triatominae Ecology Evolution Behavior and Systematics Disease Reservoirs Anteater Base Sequence biology Ecology Tamandua tetradactyla Cytochromes b Xenarthra biology.organism_classification Attalea phalerata Insect Vectors Infectious Diseases Myrmecophagidae Brazil |
| Zdroj: | Infection, Genetics and Evolution. 10:1278-1281 |
| ISSN: | 1567-1348 |
| Popis: | A sylvatic infection focus of Trypanosoma rangeli, whose cycle involves the anteater Tamandua tetradactyla and triatomine insect Rhodnius robustus was observed in a pasture-dominated landscape of the rural riparian community of São Tomé located along the Tapajós river in the municipal district of Aveiro (State of Pará, Brazil), the Brazilian Amazon region. During a field work campaign with the objective of Chagas disease diagnosis in the Tapajós region, an anteater and 31 triatomines were found inhabiting in the same Attalea phalerata palm tree crown. Collected triatomines were identified as R. robustus with morphological and molecular procedures. The analysis of infection by T. rangeli using the repetitive ARN nucleolar Cl1 (sno-RNA-Cl1) gene showed that 25 triatomines of all stages were infected by T. rangeli (total infection rate of 80.6%). Infection by Trypanosoma cruzi using mini-exon markers was not identified. Examination of the digestive content of the triatomines demonstrated that the only feeding source found was the anteater. These results demonstrate that T. tetradactyla can be an important reservoir for T. rangeli and a good vehicle of the parasite within the Brazilian Amazon region. |
| Databáze: | OpenAIRE |
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