Morocoima Antonio, Barroeta Rogny, Virguez Milagros, Roschman-González Antonio, Chique José David, Ferrer Elizabeth, Herrera Leidi
Centro de Medicina Tropical, Universidad de Oriente (UDO). Anzoátegui, Venezuela.
Centro de Microscopia Electrónica; Facultad de Ciencias, Universidad Central de Venezuela (UCV). Caracas, Venezuela.
Rev Peru Med Exp Salud Publica. 2018 Oct-Dec;35(4):563-572. doi: 10.17843/rpmesp.2018.354.3871.
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.
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.
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.
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.
了解委内瑞拉安索阿特吉州刺葵（Acrocomia Aculeata）或油椰棕榈树上锥蝽的自然侵染情况及其感染克氏锥虫（Trypanosoma cruzi, T. cruzi）的情况。
在植物检疫活动中，对未受影响的刺葵进行锥蝽侵染及其感染克氏锥虫的研究。通过显微镜检查和PCR-kDNA检测寄生虫的存在，并利用分子标记对其进行鉴定。
发现14棵棕榈树有锥蝽侵染；48.8%的个体为红带锥蝽（Rhodnius prolixus），48.2%为黄斑锥蝽（Maculata Triatoma），均发育至成虫阶段。寄生虫学和分子检测、其典型形态以及在小鼠模型中的感染情况显示，两种锥蝽中平均有54.8%存在克氏锥虫，且存在克氏锥虫TcI基因型的传播。
报告了委内瑞拉安索阿特吉州油椰棕榈树受到红带锥蝽和黄斑锥蝽的侵染，以及克氏锥虫TcI亚群的存在，这种棕榈树是锥蝽 - 克氏锥虫组合的家栖环境，可能是周围人群感染风险的生物指示物。
