Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection

Autores
Micieli, Maria Victoria; Glaser, Robert L.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The endosymbiotic bacteria Wolbachia pipientis Hertig infects a wide variety of insect species and can increase viral resistance in its host. Wolbachia naturally infects Culex quinquefasciatus Say and Culex pipiens L. mosquitoes, both vectors of West Nile virus (WNV). We recently demonstrated that Wolbachia infection of Cx. quinquefasciatus laboratory strain Ben95 increases host resistance to WNV infection, reducing vector competence. This observation raised the possibility that Wolbachia could impact vector competence in other populations of Cx. quinquefasciatus or Cx. pipiens. To investigate this possibility, Wolbachia densities were measured in Ben95 Cx. quinquefasciatus and compared to densities in a newly established colony of Cx. quinquefasciatus, and in field-collected and colonized Cx. pipiens. Wolbachia densities in somatic tissues of Ben95 Cx. quinquefasciatus were significantly higher than densities in the other mosquito populations tested. There was also no significant spatiotemporal variation in Wolbachia density in the field-collected Cx. pipiens, although significant familial differences were observed. Correlating Wolbachia densities and vector competence in individual colonized Cx. pipiens indicated that the low densities of somatic Wolbachia observed in the mosquitoes other than Ben95 Cx. quinquefasciatus were too low to inhibit WNV infection and reduce vector competence. These results suggest that the high Wolbachia densities capable of inducing resistance to WNV in Ben95 Cx. quinquefasciatus are not a general characteristic of Cx. quinquefasciatus or Cx. pipiens mosquitoes and that the impact of Wolbachia on vector competence in field populations of Cx. quinquefasciatus and Cx. pipiens, if any, is likely to be limited to specific populations.
Fil: Micieli, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina
Fil: Glaser, Robert L.. Wadsworth Center. State Of New York Department Of Health; Estados Unidos
Materia
Wolbachia
West Nile Virus
Culex Mosquito
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/9548

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network_name_str CONICET Digital (CONICET)
spelling Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus InfectionMicieli, Maria VictoriaGlaser, Robert L.WolbachiaWest Nile VirusCulex Mosquitohttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The endosymbiotic bacteria Wolbachia pipientis Hertig infects a wide variety of insect species and can increase viral resistance in its host. Wolbachia naturally infects Culex quinquefasciatus Say and Culex pipiens L. mosquitoes, both vectors of West Nile virus (WNV). We recently demonstrated that Wolbachia infection of Cx. quinquefasciatus laboratory strain Ben95 increases host resistance to WNV infection, reducing vector competence. This observation raised the possibility that Wolbachia could impact vector competence in other populations of Cx. quinquefasciatus or Cx. pipiens. To investigate this possibility, Wolbachia densities were measured in Ben95 Cx. quinquefasciatus and compared to densities in a newly established colony of Cx. quinquefasciatus, and in field-collected and colonized Cx. pipiens. Wolbachia densities in somatic tissues of Ben95 Cx. quinquefasciatus were significantly higher than densities in the other mosquito populations tested. There was also no significant spatiotemporal variation in Wolbachia density in the field-collected Cx. pipiens, although significant familial differences were observed. Correlating Wolbachia densities and vector competence in individual colonized Cx. pipiens indicated that the low densities of somatic Wolbachia observed in the mosquitoes other than Ben95 Cx. quinquefasciatus were too low to inhibit WNV infection and reduce vector competence. These results suggest that the high Wolbachia densities capable of inducing resistance to WNV in Ben95 Cx. quinquefasciatus are not a general characteristic of Cx. quinquefasciatus or Cx. pipiens mosquitoes and that the impact of Wolbachia on vector competence in field populations of Cx. quinquefasciatus and Cx. pipiens, if any, is likely to be limited to specific populations.Fil: Micieli, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); ArgentinaFil: Glaser, Robert L.. Wadsworth Center. State Of New York Department Of Health; Estados UnidosEntomological Society Of America2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9548Micieli, Maria Victoria; Glaser, Robert L.; Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection; Entomological Society Of America; Journal Of Medical Entomology; 51; 1; 1-2014; 189-1990022-2585enginfo:eu-repo/semantics/altIdentifier/doi/10.1603/ME13152info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/24605469info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:50Zoai:ri.conicet.gov.ar:11336/9548instacron: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:34982025-09-03 09:54:50.53CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
title Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
spellingShingle Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
Micieli, Maria Victoria
Wolbachia
West Nile Virus
Culex Mosquito
title_short Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
title_full Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
title_fullStr Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
title_full_unstemmed Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
title_sort Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection
dc.creator.none.fl_str_mv Micieli, Maria Victoria
Glaser, Robert L.
author Micieli, Maria Victoria
author_facet Micieli, Maria Victoria
Glaser, Robert L.
author_role author
author2 Glaser, Robert L.
author2_role author
dc.subject.none.fl_str_mv Wolbachia
West Nile Virus
Culex Mosquito
topic Wolbachia
West Nile Virus
Culex Mosquito
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The endosymbiotic bacteria Wolbachia pipientis Hertig infects a wide variety of insect species and can increase viral resistance in its host. Wolbachia naturally infects Culex quinquefasciatus Say and Culex pipiens L. mosquitoes, both vectors of West Nile virus (WNV). We recently demonstrated that Wolbachia infection of Cx. quinquefasciatus laboratory strain Ben95 increases host resistance to WNV infection, reducing vector competence. This observation raised the possibility that Wolbachia could impact vector competence in other populations of Cx. quinquefasciatus or Cx. pipiens. To investigate this possibility, Wolbachia densities were measured in Ben95 Cx. quinquefasciatus and compared to densities in a newly established colony of Cx. quinquefasciatus, and in field-collected and colonized Cx. pipiens. Wolbachia densities in somatic tissues of Ben95 Cx. quinquefasciatus were significantly higher than densities in the other mosquito populations tested. There was also no significant spatiotemporal variation in Wolbachia density in the field-collected Cx. pipiens, although significant familial differences were observed. Correlating Wolbachia densities and vector competence in individual colonized Cx. pipiens indicated that the low densities of somatic Wolbachia observed in the mosquitoes other than Ben95 Cx. quinquefasciatus were too low to inhibit WNV infection and reduce vector competence. These results suggest that the high Wolbachia densities capable of inducing resistance to WNV in Ben95 Cx. quinquefasciatus are not a general characteristic of Cx. quinquefasciatus or Cx. pipiens mosquitoes and that the impact of Wolbachia on vector competence in field populations of Cx. quinquefasciatus and Cx. pipiens, if any, is likely to be limited to specific populations.
Fil: Micieli, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina
Fil: Glaser, Robert L.. Wadsworth Center. State Of New York Department Of Health; Estados Unidos
description The endosymbiotic bacteria Wolbachia pipientis Hertig infects a wide variety of insect species and can increase viral resistance in its host. Wolbachia naturally infects Culex quinquefasciatus Say and Culex pipiens L. mosquitoes, both vectors of West Nile virus (WNV). We recently demonstrated that Wolbachia infection of Cx. quinquefasciatus laboratory strain Ben95 increases host resistance to WNV infection, reducing vector competence. This observation raised the possibility that Wolbachia could impact vector competence in other populations of Cx. quinquefasciatus or Cx. pipiens. To investigate this possibility, Wolbachia densities were measured in Ben95 Cx. quinquefasciatus and compared to densities in a newly established colony of Cx. quinquefasciatus, and in field-collected and colonized Cx. pipiens. Wolbachia densities in somatic tissues of Ben95 Cx. quinquefasciatus were significantly higher than densities in the other mosquito populations tested. There was also no significant spatiotemporal variation in Wolbachia density in the field-collected Cx. pipiens, although significant familial differences were observed. Correlating Wolbachia densities and vector competence in individual colonized Cx. pipiens indicated that the low densities of somatic Wolbachia observed in the mosquitoes other than Ben95 Cx. quinquefasciatus were too low to inhibit WNV infection and reduce vector competence. These results suggest that the high Wolbachia densities capable of inducing resistance to WNV in Ben95 Cx. quinquefasciatus are not a general characteristic of Cx. quinquefasciatus or Cx. pipiens mosquitoes and that the impact of Wolbachia on vector competence in field populations of Cx. quinquefasciatus and Cx. pipiens, if any, is likely to be limited to specific populations.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/9548
Micieli, Maria Victoria; Glaser, Robert L.; Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection; Entomological Society Of America; Journal Of Medical Entomology; 51; 1; 1-2014; 189-199
0022-2585
url http://hdl.handle.net/11336/9548
identifier_str_mv Micieli, Maria Victoria; Glaser, Robert L.; Somatic Wolbachia (Rickettsiales: Rickettsiaceae) Levels in Culex quinquefasciatus and Culex pipiens (Diptera: Culicidae) and Resistance to West Nile Virus Infection; Entomological Society Of America; Journal Of Medical Entomology; 51; 1; 1-2014; 189-199
0022-2585
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1603/ME13152
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/24605469
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 Entomological Society Of America
publisher.none.fl_str_mv Entomological Society Of America
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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