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Triatominae in Palm Trees and Their Natural Infection by Trypanosoma cruzi in Regions of Eastern Venezuela

quarta-feira, outubro 16, 2019

Resultado de imagem para acrocomia aculeata bolivia


Authors: Morocoima A, Barroeta R, Virguez M, Roschman-González A, Chique JD, Ferrer E, Herrera L

Abstract: INTRODUCTION:To know the natural infestation by triatominae and their infection by Trypanosoma cruzi (T. cruzi) in Acrocomia Aculeata (A. aculeata) or coyol palm in the state of Anzoátegui, Venezuela. MATERIALS AND METHODS:Triatominic infestation and its infection by T. cruzi was studied in non-affected A. aculeata in phytosanitary campaigns. The presence of the parasite was determined by microscopy and PCR-kDNA, and its characterization was made by means of molecular markers. 

RESULTS:Fourteen palm trees with triatominic infestation were found; 48.8% of the individuals corresponded to Rhodnius prolixus and 48.2% to Maculata Triatoma, with ontogenetic development towards adult. The parasitology and molecular tests, their typical morphology and the infection in the murine model revealed the presence of T. cruzi in an average of 54,8%, for both species of triatominae, with circulation of the TcI genotype of T. cruzi. 

CONCLUSIONS:The infestation of coyol palm trees with Rhodnius prolixus and Maculata Triatoma was reported for the state of Anzoátegui in Venezuela, as well as the presence of TcI sub-populations of T. cruzi, being this palm tree the peridomicilar habitat of the triatominae-T. cruzi binomial and possible bioindicador of risk of infection for surrounding human populations.

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Page: Europe PMC

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