Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859
The comparison among specimens of Rhodnius prolixus, at different stages of development, exposed to infections by Trypanosoma rangeli and Trypanosoma cruzi, revealed that the bugs exposed to T. cruzi showed a significant higher susceptibility to infection than that observed in the groups exposed to...
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Universidad de Zulia
1992-09-01
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doaj-b9840e719d484d8fae7dd8c2cac69d792020-11-25T01:27:47ZspaUniversidad de ZuliaKasmera0075-52222477-96281992-09-01201-435514549Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859N. Añez0M. Molero1A. Valderrama2Elsa Nieves3D. Cazorla4M. Castro5V. Márquez6Universidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaUniversidad de Los Andes-VenezuelaThe comparison among specimens of Rhodnius prolixus, at different stages of development, exposed to infections by Trypanosoma rangeli and Trypanosoma cruzi, revealed that the bugs exposed to T. cruzi showed a significant higher susceptibility to infection than that observed in the groups exposed to T. rangeli or to the mixture of both parasites. The similar mortality rate recorded in uninfected and T. cruzi infected bugs confirms that this parasite is harmless to R. prolixus. On the other hand. T. rangeli produces its pathological effect although the bugs ingest a relatively low number of flagellates. suggesting the existen ce of a direct relation between the amount of ingested parasites and the mortality produced. In mixed infection, T. cruzi does not inhibit the harmful effect ofT. rangeli on R. prolixus. The life cyc1e of R. prolixus is not affected by high infection of T. cruzi or low infection by T. range~. However, when bugs ingested a high amount of flagellates ofT. rangeli in mixed infections, the time to reach the adult stage in relation to controls, was significantIy longer. The epidemiological significance of the present results is discussed.https://produccioncientificaluz.org/index.php/kasmera/article/view/4550trypanosoma rangelitrypanosoma cruzirhodnius prolixusmixed infection |
collection |
DOAJ |
language |
Spanish |
format |
Article |
sources |
DOAJ |
author |
N. Añez M. Molero A. Valderrama Elsa Nieves D. Cazorla M. Castro V. Márquez |
spellingShingle |
N. Añez M. Molero A. Valderrama Elsa Nieves D. Cazorla M. Castro V. Márquez Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 Kasmera trypanosoma rangeli trypanosoma cruzi rhodnius prolixus mixed infection |
author_facet |
N. Añez M. Molero A. Valderrama Elsa Nieves D. Cazorla M. Castro V. Márquez |
author_sort |
N. Añez |
title |
Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 |
title_short |
Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 |
title_full |
Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 |
title_fullStr |
Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 |
title_full_unstemmed |
Studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. Infection in differents st ages of rhodnius prolixus stal, 1859 |
title_sort |
studies on trypanosoma rangeli tejera, 1920 x-its comparison with trypanosoma cruzi chagas, 1909. infection in differents st ages of rhodnius prolixus stal, 1859 |
publisher |
Universidad de Zulia |
series |
Kasmera |
issn |
0075-5222 2477-9628 |
publishDate |
1992-09-01 |
description |
The comparison among specimens of Rhodnius prolixus, at different stages of development, exposed to infections by Trypanosoma rangeli and Trypanosoma cruzi, revealed that the bugs exposed to T. cruzi showed a significant higher susceptibility to infection than that observed in the groups exposed to T. rangeli or to the mixture of both parasites. The similar mortality rate recorded in uninfected and T. cruzi infected bugs confirms that this parasite is harmless to R. prolixus. On the other hand. T. rangeli produces its pathological effect although the bugs ingest a relatively low number of flagellates. suggesting the existen ce of a direct relation between the amount of ingested parasites and the mortality produced. In mixed infection, T. cruzi does not inhibit the harmful effect ofT. rangeli on R. prolixus. The life cyc1e of R. prolixus is not affected by high infection of T. cruzi or low infection by T. range~. However, when bugs ingested a high amount of flagellates ofT. rangeli in mixed infections, the time to reach the adult stage in relation to controls, was significantIy longer. The epidemiological significance of the present results is discussed. |
topic |
trypanosoma rangeli trypanosoma cruzi rhodnius prolixus mixed infection |
url |
https://produccioncientificaluz.org/index.php/kasmera/article/view/4550 |
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