Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants

The photonegative responses to light stimulation in Rhodnius prolixus (Reduviidae, Triatominae) is modulated by compound eyes and ocelli. Screening pigments in the visual system have been shown to protect the cellular structures from oxidative stress damage generated by ingesting blood and light sti...

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Autores:
Vija Suárez, Carlos Alberto
Tipo de recurso:
Fecha de publicación:
2017
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/13886
Acceso en línea:
http://hdl.handle.net/1992/13886
Palabra clave:
Rhodnius prolixus - Investigaciones
Insectos - Hábitos y conducta - Investigaciones
Polimorfismos genéticos - Investigaciones
Mutación animal
Biología
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-sa/4.0/
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spelling Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Molina Escobar, Jorge Albertovirtual::2595-1Vija Suárez, Carlos Albertoeb89a153-e517-47d4-bd08-20371783b72d500Lazzari, Claudio RicardoRiet Sapriza, Federico GermánMolina Escobar, Jorge Alberto2018-09-28T11:00:08Z2018-09-28T11:00:08Z2017http://hdl.handle.net/1992/13886u729684.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/The photonegative responses to light stimulation in Rhodnius prolixus (Reduviidae, Triatominae) is modulated by compound eyes and ocelli. Screening pigments in the visual system have been shown to protect the cellular structures from oxidative stress damage generated by ingesting blood and light stimulation. Red-eyed mutants of Rhodnius prolixus lack screening pigments in compound eyes and ocelli and are exposed to oxidative stress. Experiments with Rhodnius prolixus and Triatoma infestons red-eyed mutants reared from first nymphal stage have shown a damage in the retina of the compound eyes and a decrease in the photonegative responses to light stimulation. Having in mind that ocelli are only present in the imaginal stages, we designed a group of experiments to test a possible damage of ocelli by oxidative stress mediated by blood ingestion in Rhodnius prolixus red-eyed mutants and wild type. We carried out behavioral experiments to evaluate the photonegative responses in adults exposed to different treatments including covering compound eyes or ocelli, and different blood feeding treatments in order to test Our hypothesis. Our results show that ocelli in adults of Rhodnius prolixus can modulate the photonegative responses in red-eyed mutants better than the compound eyes. In addition, a decrease in photonegative responses was evident when the red-eyed mutants were fed with blood for up to four weeks. The ocelli in Rhodnius prolixus can be cataloged as a feedback visual system in the photonegative responses to light stimulation and screening pigments in the visual system are playing an important role to prevent damage by oxidative stress due to blood feeding.Magíster en Ciencias BiológicasMaestría24 hojasapplication/pdfengUniandesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Biologíainstname:Universidad de los Andesreponame:Repositorio Institucional SénecaBehavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutantsTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesishttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TMRhodnius prolixus - InvestigacionesInsectos - Hábitos y conducta - InvestigacionesPolimorfismos genéticos - InvestigacionesMutación animalBiologíaPublicationhttps://scholar.google.es/citations?user=nCoNP_MAAAAJvirtual::2595-10000-0003-3018-6726virtual::2595-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001012053virtual::2595-19868e8c9-c2f8-458f-9d29-ed9d658b59fevirtual::2595-19868e8c9-c2f8-458f-9d29-ed9d658b59fevirtual::2595-1TEXTu729684.pdf.txtu729684.pdf.txtExtracted texttext/plain44108https://repositorio.uniandes.edu.co/bitstreams/1e89a763-ca2d-476c-9cae-90d60bb4895c/download30de7f6793f4b1ec57727d0d8c3a6f4fMD54THUMBNAILu729684.pdf.jpgu729684.pdf.jpgIM Thumbnailimage/jpeg23422https://repositorio.uniandes.edu.co/bitstreams/7f5b65aa-1a55-4c51-a489-b6451ab98653/downloadcc36bf00aecc78a5a211abaffb1787f7MD55ORIGINALu729684.pdfapplication/pdf1054381https://repositorio.uniandes.edu.co/bitstreams/248a7860-69a2-48d0-a1da-b86b56d2ec5f/downloadbe223cccee5ad5cc6eddc4a8b1ad4776MD511992/13886oai:repositorio.uniandes.edu.co:1992/138862024-03-13 12:14:23.195http://creativecommons.org/licenses/by-nc-sa/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co
dc.title.es_CO.fl_str_mv Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
title Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
spellingShingle Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
Rhodnius prolixus - Investigaciones
Insectos - Hábitos y conducta - Investigaciones
Polimorfismos genéticos - Investigaciones
Mutación animal
Biología
title_short Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
title_full Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
title_fullStr Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
title_full_unstemmed Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
title_sort Behavioral evidence of oxidative stress derived from haematophagy in the ocellar system of Rhodnius prolixus Stal, 1859 red-eyed mutants
dc.creator.fl_str_mv Vija Suárez, Carlos Alberto
dc.contributor.advisor.none.fl_str_mv Molina Escobar, Jorge Alberto
dc.contributor.author.none.fl_str_mv Vija Suárez, Carlos Alberto
dc.contributor.jury.none.fl_str_mv Lazzari, Claudio Ricardo
Riet Sapriza, Federico Germán
Molina Escobar, Jorge Alberto
dc.subject.keyword.es_CO.fl_str_mv Rhodnius prolixus - Investigaciones
Insectos - Hábitos y conducta - Investigaciones
Polimorfismos genéticos - Investigaciones
Mutación animal
topic Rhodnius prolixus - Investigaciones
Insectos - Hábitos y conducta - Investigaciones
Polimorfismos genéticos - Investigaciones
Mutación animal
Biología
dc.subject.themes.none.fl_str_mv Biología
description The photonegative responses to light stimulation in Rhodnius prolixus (Reduviidae, Triatominae) is modulated by compound eyes and ocelli. Screening pigments in the visual system have been shown to protect the cellular structures from oxidative stress damage generated by ingesting blood and light stimulation. Red-eyed mutants of Rhodnius prolixus lack screening pigments in compound eyes and ocelli and are exposed to oxidative stress. Experiments with Rhodnius prolixus and Triatoma infestons red-eyed mutants reared from first nymphal stage have shown a damage in the retina of the compound eyes and a decrease in the photonegative responses to light stimulation. Having in mind that ocelli are only present in the imaginal stages, we designed a group of experiments to test a possible damage of ocelli by oxidative stress mediated by blood ingestion in Rhodnius prolixus red-eyed mutants and wild type. We carried out behavioral experiments to evaluate the photonegative responses in adults exposed to different treatments including covering compound eyes or ocelli, and different blood feeding treatments in order to test Our hypothesis. Our results show that ocelli in adults of Rhodnius prolixus can modulate the photonegative responses in red-eyed mutants better than the compound eyes. In addition, a decrease in photonegative responses was evident when the red-eyed mutants were fed with blood for up to four weeks. The ocelli in Rhodnius prolixus can be cataloged as a feedback visual system in the photonegative responses to light stimulation and screening pigments in the visual system are playing an important role to prevent damage by oxidative stress due to blood feeding.
publishDate 2017
dc.date.issued.es_CO.fl_str_mv 2017
dc.date.accessioned.none.fl_str_mv 2018-09-28T11:00:08Z
dc.date.available.none.fl_str_mv 2018-09-28T11:00:08Z
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
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dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/1992/13886
dc.identifier.pdf.none.fl_str_mv u729684.pdf
dc.identifier.instname.spa.fl_str_mv instname:Universidad de los Andes
dc.identifier.reponame.spa.fl_str_mv reponame:Repositorio Institucional Séneca
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identifier_str_mv u729684.pdf
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dc.language.iso.es_CO.fl_str_mv eng
language eng
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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
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eu_rights_str_mv openAccess
dc.format.extent.es_CO.fl_str_mv 24 hojas
dc.format.mimetype.es_CO.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Uniandes
dc.publisher.program.es_CO.fl_str_mv Maestría en Ciencias Biológicas
dc.publisher.faculty.es_CO.fl_str_mv Facultad de Ciencias
dc.publisher.department.es_CO.fl_str_mv Departamento de Biología
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