Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans
The triatomine bug Triatoma infestans probably originated in Bolivia and dispersed passively over wide areas of South America, where it is the principal vector of Trypanosoma cruzi. In the region of its probable origin this species shows colonization in two different ecotopes, so that it may be enco...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2000-12-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000600025 |
| _version_ | 1797756652353486848 |
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| author | Herton Helder Rocha Pires Silvia Ermelinda Barbosa Liléia Diotaiuti |
| author_facet | Herton Helder Rocha Pires Silvia Ermelinda Barbosa Liléia Diotaiuti |
| author_sort | Herton Helder Rocha Pires |
| collection | DOAJ |
| description | The triatomine bug Triatoma infestans probably originated in Bolivia and dispersed passively over wide areas of South America, where it is the principal vector of Trypanosoma cruzi. In the region of its probable origin this species shows colonization in two different ecotopes, so that it may be encountered in sylvatic as well as in artificial habitats. The sylvatic colonization pattern is not observed in the rest of its range, where T. infestans is exclusive to man-made habitats. The objective of this study was to compare several aspects of two T. infestans populations, one from Minas Gerais (Brazil) and the other from the Cochabamba Valley (Bolivia), with a view to elucidate the factors associated with the different colonization patterns observed for this species. The differences between the developmental cycle, weight, capacity to ingest blood and mortality rate of first instar nymphs should indicate more fragility of Brazilian population that may be related to its elimination possibility. |
| first_indexed | 2024-03-12T18:04:36Z |
| format | Article |
| id | doaj.art-938e1f18c3fd4969be1aa999a4474985 |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T18:04:36Z |
| publishDate | 2000-12-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-938e1f18c3fd4969be1aa999a44749852023-08-02T09:32:16ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602000-12-0195688388810.1590/S0074-02762000000600025Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestansHerton Helder Rocha PiresSilvia Ermelinda BarbosaLiléia DiotaiutiThe triatomine bug Triatoma infestans probably originated in Bolivia and dispersed passively over wide areas of South America, where it is the principal vector of Trypanosoma cruzi. In the region of its probable origin this species shows colonization in two different ecotopes, so that it may be encountered in sylvatic as well as in artificial habitats. The sylvatic colonization pattern is not observed in the rest of its range, where T. infestans is exclusive to man-made habitats. The objective of this study was to compare several aspects of two T. infestans populations, one from Minas Gerais (Brazil) and the other from the Cochabamba Valley (Bolivia), with a view to elucidate the factors associated with the different colonization patterns observed for this species. The differences between the developmental cycle, weight, capacity to ingest blood and mortality rate of first instar nymphs should indicate more fragility of Brazilian population that may be related to its elimination possibility.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000600025Triatoma infestanspopulationsdevelopmental cycleinsecticides |
| spellingShingle | Herton Helder Rocha Pires Silvia Ermelinda Barbosa Liléia Diotaiuti Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans Memorias do Instituto Oswaldo Cruz Triatoma infestans populations developmental cycle insecticides |
| title | Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans |
| title_full | Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans |
| title_fullStr | Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans |
| title_full_unstemmed | Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans |
| title_short | Comparative developmental and susceptibility to insecticide of Bolivian and Brazilian populations of Triatoma infestans |
| title_sort | comparative developmental and susceptibility to insecticide of bolivian and brazilian populations of triatoma infestans |
| topic | Triatoma infestans populations developmental cycle insecticides |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000600025 |
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