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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Main Authors: N. Añez, M. Molero, A. Valderrama, Elsa Nieves, D. Cazorla, M. Castro, V. Márquez
Format: Article
Language:Spanish
Published: Universidad de Zulia 1992-09-01
Series:Kasmera
Subjects:
Online Access:https://produccioncientificaluz.org/index.php/kasmera/article/view/4550
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spelling 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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