Life cycle, feeding, and defecation patterns of Triatoma carrioni (Hemiptera: Reduviidae), under laboratory conditions

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dc.careerEscuela de Ciencias Biológicases
dc.category.authorprincipalen_US
dc.contributor.authorGrijalva Cobo, Mario Javier
dc.contributor.authorMoncayo Benalcázar, Ana Lucía
dc.contributor.authorVillacis Salazar, Anita Gabriela
dc.contributor.correspondingGrijalva Cobo, Mario Javier
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:31:45Z
dc.date.available2023-11-04T21:31:45Z
dc.date.issued2019-04
dc.dedication.authorTCes
dc.description.abstractChagas disease is caused by Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae). It is transmitted to humans primarily through contaminated feces of blood-sucking vectors of the subfamily Triatominae, known in Ecuador as 'chinchorros'. Some Triatominae species can adapt to domiciliary and peridomiciliary environments where T. cruzi can be transmitted to humans. Triatoma carrioni (Larrousse 1926) colonizes domestic and peridomestic habitats up to 2,242 m above sea level (masl) in southern Ecuador (Loja Province) and northern Peru. This study describes the life cycle, feeding, and defecation patterns of T. carrioni under controlled laboratory conditions using mice as hosts. Specimens were collected in Loja Province, Ecuador, and maintained in the laboratory. The life cycle was approximately 385.7 ± 110.6 d. There was a high mortality rate, 40.9% for first instars and 38.9% for fifth instars (NV). Feeding and defecation patterns for each life stage were examined by recording: insertion time of the proboscis into the host, total feeding time, time to first defecation, and weight of the bloodmeal. Total feeding time varied between 20.6 ± 11.4 min for first instars (NI) and 48.9 ± 19.0 min for adult females. The time to first defecation was variable but ranged from 9.8 ± 10.6 min for NI to 39.4 ± 24.7 min for NV during feeding. This suggests that T. carrioni has an annual life cycle and is a potential vector of T. cruzi in Loja Province. Improved knowledge of populations of T. carrioni in domestic and peridomestic environments of Ecuador can have a significant impact on the prevention and control of Chagas disease.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1708757742
dc.id.author1711447993
dc.id.author1706504535
dc.id.type1
dc.identifier.doihttps://doi.org/10.1093/jme/tjz004
dc.identifier.issn0022-2585
dc.identifier.issn1938-2928
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/4905
dc.identifier.urihttps://pubmed.ncbi.nlm.nih.gov/30768666/
dc.indexed.databaseScimago Journal Rankes
dc.language.isoen
dc.list.authorsPadilla, A., Moncayo, A., Keil, C., Grijalva, M., & Villacís, A.
dc.magazine.pageRange617-624
dc.magazine.titleJournal of Medical Entomologyen_US
dc.magazine.volumeChapter56(3)
dc.rightsOpenAccessen
dc.statepublisheden_US
dc.subjectDesarrollo biológicoes
dc.subjectCiclo vitales
dc.subjectTrypanosomaes
dc.subjectEnfermedad de Chagases
dc.subjectDesarrollo biológico
dc.subjectCiclo vital
dc.subjectTrypanosoma
dc.subjectEnfermedad de Chagas
dc.titleLife cycle, feeding, and defecation patterns of Triatoma carrioni (Hemiptera: Reduviidae), under laboratory conditionsen_US
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