| Author | Lopes, Rosane L. | |
| Author | Santos-Mallet, Jacenir R. | |
| Author | Barbosa, Catia F. | |
| Author | Gomes, Suzete A.O. | |
| Author | Spiegel, Carolina N. | |
| Access date | 2021-01-19T20:21:23Z | |
| Available date | 2021-01-19T20:21:23Z | |
| Document date | 2020 | |
| Citation | LOPES, Rosane L. et al. Morphological and ultrastructural analysis of an important place of sexual communication of Rhodnius prolixus (Heteroptera: Reduviidae): the Metasternal Glands. Tissue and Cell, v. 67, 101416, 7p, Sept. 2020. | pt_BR |
| ISSN | 0040-8166 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/45749 | |
| Language | eng | pt_BR |
| Publisher | Elsevier | pt_BR |
| Rights | restricted access | |
| Subject in Portuguese | Rhodnius prolixus | pt_BR |
| Subject in Portuguese | Microscopia eletrônica | pt_BR |
| Subject in Portuguese | Glândulas Metasternais | pt_BR |
| Subject in Portuguese | Microscopia leve | pt_BR |
| Subject in Portuguese | Feromônio sexual | pt_BR |
| Title | Morphological and ultrastructural analysis of an important place of sexual communication of Rhodnius prolixus (Heteroptera: Reduviidae): the Metasternal Glands | pt_BR |
| Type | Article | |
| DOI | 10.1016/j.tice.2020.101416 | |
| Abstract | Rhodnius prolixus is an important vector of Trypanosoma cruzi, the etiological agent of Chagas disease. Insect
adults have a pair of Metasternal Glands (MGs) and the secretion emitted by these glands acts as sex pheromone.
Recent studies have focused on the chemical composition of this pheromone, electrophysiological responses to
MGs compounds and mating behavior assays. Morphological studies of these glands are still scarce. Thus,
considering the relevance of MGs in the sex pheromone biosynthesis, we investigated the morphology and ultrastructure
of R. prolixus MGs. The glandular apparatus presents a tubular structure containing secretory cells
with canalicules that fuse with the central duct which conducts the secretion to a pear-shaped reservoir connected
to the exterior by a droplet-shape orifice. The secretory cells are classified as class III, they present a welldeveloped
rough and smooth endoplasmic reticulum. Smooth endoplasmic reticulum is a site of lipid biosynthesis
that may be involved in the mevalonate pathway, a probable route of the sex pheromone biosynthesis
in this insect. The presence of rough endoplasmic reticulum indicates a possible peptides/proteins secretions site
which were still not characterized in MGs. Several mitochondria are scattered in the cytoplasm that may suggest
a high metabolic activity. Further studies should be carried out to correlate these data with the sex pheromone
biosynthesis in this vector. | pt_BR |
| Affilliation | Universidade Federal Fluminense. Instituto de Biologia. Programa de Pós-Graudação de Ciência e Biotecnologia. Niterói, RJ, Brasil / Universidade Federal Fluminense. Instituto de Biologia. Departamento de Biologia Geral. Laboratório de Insetos e Biodiversidade Patógena. Niterói, RJ, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal Fluminense. Instituto de Química. Departamento de Geoquímica, Niterói, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal Fluminense. Instituto de Biologia. Programa de Pós-Graudação de Ciência e Biotecnologia. Niterói, RJ, Brasil / Universidade Federal Fluminense. Instituto de Biologia. Departamento de Biologia Geral. Laboratório de Insetos e Biodiversidade Patógena. Niterói, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal Fluminense. Instituto de Biologia. Programa de Pós-Graudação de Ciência e Biotecnologia. Niterói, RJ, Brasil / Universidade Federal Fluminense. Instituto de Biologia. Departamento de Biologia Celular e Molecular. Niterói, RJ, Brasil. | pt_BR |
| Subject | Rhodnius prolixus | pt_BR |
| Subject | Metasternal Glands | pt_BR |
| Subject | Light microscopy | pt_BR |
| Subject | Electron microscopy | pt_BR |
| Subject | Sex pheromone | pt_BR |
| e-ISSN | 1532-3072 | |
| xmlui.metadata.dc.subject.ods | 05 Igualdade de gênero | |
