Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene
- Autores
- Marliére, Newmar Pinto; Latorre Estivalis, Jose Manuel; Lorenzo, Marcelo Gustavo; Carrasco, David; Alves Silva, Juliana; Rodrigues, Juliana de Oliveira; Ferreira, Luciana de Lima; Lara, Luisa de Melo; Lowenberger, Carl; Guarneri, Alessandra Aparecida
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Background: As a result of evolution, the biology of triatomines must have been significantly adapted to accommodate trypanosome infection in a complex network of vector-vertebrate-parasite interactions. Arthropod-borne parasites have probably developed mechanisms, largely still unknown, to exploit the vector-vertebrate host interactions to ensure their transmission to suitable hosts. Triatomines exhibit a strong negative phototaxis and nocturnal activity, believed to be important for insect survival against its predators. Methodology/Principal Findings: In this study we quantified phototaxis and locomotion in starved fifth instar nymphs of Rhodnius prolixus infected with Trypanosoma cruzi or Trypanosoma rangeli. T. cruzi infection did not alter insect phototaxis, but induced an overall 20% decrease in the number of bug locomotory events. Furthermore, the significant differences induced by this parasite were concentrated at the beginning of the scotophase. Conversely, T. rangeli modified both behaviors, as it significantly decreased bug negative phototaxis, while it induced a 23% increase in the number of locomotory events in infected bugs. In this case, the significant effects were observed during the photophase. We also investigated the expression of Rpfor, the triatomine ortholog of the foraging gene known to modulate locomotion in other insects, and found a 4.8 fold increase for T. rangeli infected insects. Conclusions/Significance: We demonstrated for the first time that trypanosome infection modulates the locomotory activity of the invertebrate host. T. rangeli infection seems to be more broadly effective, as besides affecting the intensity of locomotion this parasite also diminished negative phototaxis and the expression of a behavior-associated gene in the triatomine vector.
Fil: Marliére, Newmar Pinto. Centro de Pesquisas René Rachou; Brasil
Fil: Latorre Estivalis, Jose Manuel. Centro de Pesquisas René Rachou; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lorenzo, Marcelo Gustavo. Centro de Pesquisas René Rachou; Brasil
Fil: Carrasco, David. Swedish University of Agricultural Sciences; Suecia
Fil: Alves Silva, Juliana. Centro de Pesquisas René Rachou; Brasil. Universidade Federal de Minas Gerais; Brasil
Fil: Rodrigues, Juliana de Oliveira. Centro de Pesquisas René Rachou; Brasil
Fil: Ferreira, Luciana de Lima. Centro de Pesquisas René Rachou; Brasil
Fil: Lara, Luisa de Melo. Centro de Pesquisas René Rachou; Brasil
Fil: Lowenberger, Carl. University Fraser Simon; Canadá
Fil: Guarneri, Alessandra Aparecida. University Fraser Simon; Canadá. Centro de Pesquisas René Rachou; Brasil - Materia
-
Triatomines
Parasites
Behaviour
Foraging - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/53484
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/53484 |
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3498 |
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CONICET Digital (CONICET) |
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Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related geneMarliére, Newmar PintoLatorre Estivalis, Jose ManuelLorenzo, Marcelo GustavoCarrasco, DavidAlves Silva, JulianaRodrigues, Juliana de OliveiraFerreira, Luciana de LimaLara, Luisa de MeloLowenberger, CarlGuarneri, Alessandra AparecidaTriatominesParasitesBehaviourForaginghttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Background: As a result of evolution, the biology of triatomines must have been significantly adapted to accommodate trypanosome infection in a complex network of vector-vertebrate-parasite interactions. Arthropod-borne parasites have probably developed mechanisms, largely still unknown, to exploit the vector-vertebrate host interactions to ensure their transmission to suitable hosts. Triatomines exhibit a strong negative phototaxis and nocturnal activity, believed to be important for insect survival against its predators. Methodology/Principal Findings: In this study we quantified phototaxis and locomotion in starved fifth instar nymphs of Rhodnius prolixus infected with Trypanosoma cruzi or Trypanosoma rangeli. T. cruzi infection did not alter insect phototaxis, but induced an overall 20% decrease in the number of bug locomotory events. Furthermore, the significant differences induced by this parasite were concentrated at the beginning of the scotophase. Conversely, T. rangeli modified both behaviors, as it significantly decreased bug negative phototaxis, while it induced a 23% increase in the number of locomotory events in infected bugs. In this case, the significant effects were observed during the photophase. We also investigated the expression of Rpfor, the triatomine ortholog of the foraging gene known to modulate locomotion in other insects, and found a 4.8 fold increase for T. rangeli infected insects. Conclusions/Significance: We demonstrated for the first time that trypanosome infection modulates the locomotory activity of the invertebrate host. T. rangeli infection seems to be more broadly effective, as besides affecting the intensity of locomotion this parasite also diminished negative phototaxis and the expression of a behavior-associated gene in the triatomine vector.Fil: Marliére, Newmar Pinto. Centro de Pesquisas René Rachou; BrasilFil: Latorre Estivalis, Jose Manuel. Centro de Pesquisas René Rachou; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lorenzo, Marcelo Gustavo. Centro de Pesquisas René Rachou; BrasilFil: Carrasco, David. Swedish University of Agricultural Sciences; SueciaFil: Alves Silva, Juliana. Centro de Pesquisas René Rachou; Brasil. Universidade Federal de Minas Gerais; BrasilFil: Rodrigues, Juliana de Oliveira. Centro de Pesquisas René Rachou; BrasilFil: Ferreira, Luciana de Lima. Centro de Pesquisas René Rachou; BrasilFil: Lara, Luisa de Melo. Centro de Pesquisas René Rachou; BrasilFil: Lowenberger, Carl. University Fraser Simon; CanadáFil: Guarneri, Alessandra Aparecida. University Fraser Simon; Canadá. Centro de Pesquisas René Rachou; BrasilPublic Library of Science2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53484Marliére, Newmar Pinto; Latorre Estivalis, Jose Manuel; Lorenzo, Marcelo Gustavo; Carrasco, David; Alves Silva, Juliana; et al.; Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene; Public Library of Science; Neglected Tropical Diseases; 9; 8; 8-2015; 1-20; e00039731935-2735CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0003973info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0003973info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:58Zoai:ri.conicet.gov.ar:11336/53484instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:41:58.452CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
title |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
spellingShingle |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene Marliére, Newmar Pinto Triatomines Parasites Behaviour Foraging |
title_short |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
title_full |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
title_fullStr |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
title_full_unstemmed |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
title_sort |
Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene |
dc.creator.none.fl_str_mv |
Marliére, Newmar Pinto Latorre Estivalis, Jose Manuel Lorenzo, Marcelo Gustavo Carrasco, David Alves Silva, Juliana Rodrigues, Juliana de Oliveira Ferreira, Luciana de Lima Lara, Luisa de Melo Lowenberger, Carl Guarneri, Alessandra Aparecida |
author |
Marliére, Newmar Pinto |
author_facet |
Marliére, Newmar Pinto Latorre Estivalis, Jose Manuel Lorenzo, Marcelo Gustavo Carrasco, David Alves Silva, Juliana Rodrigues, Juliana de Oliveira Ferreira, Luciana de Lima Lara, Luisa de Melo Lowenberger, Carl Guarneri, Alessandra Aparecida |
author_role |
author |
author2 |
Latorre Estivalis, Jose Manuel Lorenzo, Marcelo Gustavo Carrasco, David Alves Silva, Juliana Rodrigues, Juliana de Oliveira Ferreira, Luciana de Lima Lara, Luisa de Melo Lowenberger, Carl Guarneri, Alessandra Aparecida |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
Triatomines Parasites Behaviour Foraging |
topic |
Triatomines Parasites Behaviour Foraging |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Background: As a result of evolution, the biology of triatomines must have been significantly adapted to accommodate trypanosome infection in a complex network of vector-vertebrate-parasite interactions. Arthropod-borne parasites have probably developed mechanisms, largely still unknown, to exploit the vector-vertebrate host interactions to ensure their transmission to suitable hosts. Triatomines exhibit a strong negative phototaxis and nocturnal activity, believed to be important for insect survival against its predators. Methodology/Principal Findings: In this study we quantified phototaxis and locomotion in starved fifth instar nymphs of Rhodnius prolixus infected with Trypanosoma cruzi or Trypanosoma rangeli. T. cruzi infection did not alter insect phototaxis, but induced an overall 20% decrease in the number of bug locomotory events. Furthermore, the significant differences induced by this parasite were concentrated at the beginning of the scotophase. Conversely, T. rangeli modified both behaviors, as it significantly decreased bug negative phototaxis, while it induced a 23% increase in the number of locomotory events in infected bugs. In this case, the significant effects were observed during the photophase. We also investigated the expression of Rpfor, the triatomine ortholog of the foraging gene known to modulate locomotion in other insects, and found a 4.8 fold increase for T. rangeli infected insects. Conclusions/Significance: We demonstrated for the first time that trypanosome infection modulates the locomotory activity of the invertebrate host. T. rangeli infection seems to be more broadly effective, as besides affecting the intensity of locomotion this parasite also diminished negative phototaxis and the expression of a behavior-associated gene in the triatomine vector. Fil: Marliére, Newmar Pinto. Centro de Pesquisas René Rachou; Brasil Fil: Latorre Estivalis, Jose Manuel. Centro de Pesquisas René Rachou; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lorenzo, Marcelo Gustavo. Centro de Pesquisas René Rachou; Brasil Fil: Carrasco, David. Swedish University of Agricultural Sciences; Suecia Fil: Alves Silva, Juliana. Centro de Pesquisas René Rachou; Brasil. Universidade Federal de Minas Gerais; Brasil Fil: Rodrigues, Juliana de Oliveira. Centro de Pesquisas René Rachou; Brasil Fil: Ferreira, Luciana de Lima. Centro de Pesquisas René Rachou; Brasil Fil: Lara, Luisa de Melo. Centro de Pesquisas René Rachou; Brasil Fil: Lowenberger, Carl. University Fraser Simon; Canadá Fil: Guarneri, Alessandra Aparecida. University Fraser Simon; Canadá. Centro de Pesquisas René Rachou; Brasil |
description |
Background: As a result of evolution, the biology of triatomines must have been significantly adapted to accommodate trypanosome infection in a complex network of vector-vertebrate-parasite interactions. Arthropod-borne parasites have probably developed mechanisms, largely still unknown, to exploit the vector-vertebrate host interactions to ensure their transmission to suitable hosts. Triatomines exhibit a strong negative phototaxis and nocturnal activity, believed to be important for insect survival against its predators. Methodology/Principal Findings: In this study we quantified phototaxis and locomotion in starved fifth instar nymphs of Rhodnius prolixus infected with Trypanosoma cruzi or Trypanosoma rangeli. T. cruzi infection did not alter insect phototaxis, but induced an overall 20% decrease in the number of bug locomotory events. Furthermore, the significant differences induced by this parasite were concentrated at the beginning of the scotophase. Conversely, T. rangeli modified both behaviors, as it significantly decreased bug negative phototaxis, while it induced a 23% increase in the number of locomotory events in infected bugs. In this case, the significant effects were observed during the photophase. We also investigated the expression of Rpfor, the triatomine ortholog of the foraging gene known to modulate locomotion in other insects, and found a 4.8 fold increase for T. rangeli infected insects. Conclusions/Significance: We demonstrated for the first time that trypanosome infection modulates the locomotory activity of the invertebrate host. T. rangeli infection seems to be more broadly effective, as besides affecting the intensity of locomotion this parasite also diminished negative phototaxis and the expression of a behavior-associated gene in the triatomine vector. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/53484 Marliére, Newmar Pinto; Latorre Estivalis, Jose Manuel; Lorenzo, Marcelo Gustavo; Carrasco, David; Alves Silva, Juliana; et al.; Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene; Public Library of Science; Neglected Tropical Diseases; 9; 8; 8-2015; 1-20; e0003973 1935-2735 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/53484 |
identifier_str_mv |
Marliére, Newmar Pinto; Latorre Estivalis, Jose Manuel; Lorenzo, Marcelo Gustavo; Carrasco, David; Alves Silva, Juliana; et al.; Trypanosomes modify the behavior of their insect hosts: effects on locomotion and on the expression of a related gene; Public Library of Science; Neglected Tropical Diseases; 9; 8; 8-2015; 1-20; e0003973 1935-2735 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0003973 info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0003973 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613323710005248 |
score |
13.070432 |