| Author | Souza, Rita de Cássia Moreira de | |
| Author | Soares, Adriana C. | |
| Author | Alves, Ceres Luciana | |
| Author | Lorosa, Elias Seixas | |
| Author | Pereira, Marcos Horácio | |
| Author | Diotaiuti, Liléia Gonçalves | |
| Access date | 2020-11-25T12:19:13Z | |
| Available date | 2020-11-25T12:19:13Z | |
| Document date | 2011 | |
| Citation | SOUZA, Rita de Cássia Moreira de et al. Feeding behavior of Triatoma vitticeps (Reduviidae: Triatominae) in the state of Minas Gerais, Brazil. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 106, n. 1, p. 16-22, Feb. 2011. | pt_BR |
| ISSN | 0074-0276 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/44613 | |
| Language | eng | pt_BR |
| Publisher | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. | pt_BR |
| Rights | open access | |
| Subject in Portuguese | Saliva | pt_BR |
| Subject in Portuguese | Hemíptera | pt_BR |
| Subject in Portuguese | Bomba cibarial | pt_BR |
| Subject in Portuguese | Hematofágica | pt_BR |
| Subject in Portuguese | Comportamento alimentar | pt_BR |
| Title | Feeding behavior of Triatoma vitticeps (Reduviidae: Triatominae) in the state of Minas Gerais, Brazil | pt_BR |
| Type | Article | |
| Abstract | The objective of this study was to evaluate the feeding behavior of Triatoma vitticeps through the identification of
its food sources and the characterization of the blood ingestion process. In addition, we aimed to verify if the saliva
of this vector interferes with the perception of the host during the feedings by creating a nervous impulse. Here, we
demonstrated that the T. vitticeps saliva reduces, gradually and irreversibly, the amplitude of the compound action
potential of the nervous fibre, which helps decrease the perception of the insect by the host. The precipitin reaction
demonstrated the feeding eclecticism of this vector, with the identification of eight food sources - most of them found
simultaneously in the same insect. The analysis of the electrical signals produced by the cibarial pump during meals
demonstrated that the best feeding performance of T. vitticeps nymphs that fed on pigeons is mainly due to the higher
contraction frequency of the pump. The longer contact period with the host to obtain a complete meal compared
with other triatominae species of the same instar could favor the occurrence of multiple blood sources in T. vitticeps
under natural conditions, as it was evidenced by the precipitin test. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brasil. | pt_BR |
| Affilliation | Universidade Federal de Minas Gerais. Instituto de Ciencias Biológicas. Departamento de Parasitologia. Belo Horizonte, MG, Brasil. | pt_BR |
| Affilliation | Universidade Federal de Minas Gerais. Instituto de Ciencias Biológicas. Departamento de Parasitologia. Belo Horizonte, MG, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal de Minas Gerais. Instituto de Ciencias Biológicas. Departamento de Parasitologia. Belo Horizonte, MG, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brasil. | pt_BR |
| Subject | Feeding behavior | pt_BR |
| Subject | Hemiptera | pt_BR |
| Subject | Saliva | pt_BR |
| Subject | Cibarial pump | pt_BR |
| Subject | Hematophagic | pt_BR |
| e-ISSN | 1678-8060 | |
| xmlui.metadata.dc.subject.ods | 02 Fome zero e agricultura sustentável | |
