Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects
In their natural habitat, fish are constantly threatened by icthyoparasites, notably those from the Phylum Cnidaria, Hatschek, 1888, represented by species of the Myxozoa, responsible for infections in fish that cause complications to their health that can lead to death. Among these parasites, the g...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2020-05-01
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| Series: | Acta Scientiarum: Biological Sciences |
| Subjects: | |
| Online Access: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50267 |
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| author | Jhonata Eduard Farias de Oliveira Rayline Thaimenne Alves Figueredo Maria do Perpétuo Socorro Progene Vilhena José Francisco Berrêdo José Ledamir Sindeaux-Neto Edilson Matos Michele Velasco |
| author_facet | Jhonata Eduard Farias de Oliveira Rayline Thaimenne Alves Figueredo Maria do Perpétuo Socorro Progene Vilhena José Francisco Berrêdo José Ledamir Sindeaux-Neto Edilson Matos Michele Velasco |
| author_sort | Jhonata Eduard Farias de Oliveira |
| collection | DOAJ |
| description | In their natural habitat, fish are constantly threatened by icthyoparasites, notably those from the Phylum Cnidaria, Hatschek, 1888, represented by species of the Myxozoa, responsible for infections in fish that cause complications to their health that can lead to death. Among these parasites, the genus Myxobolus Butschli, 1882 is responsible for the largest number of infections described in fishes from the Americas. This study describes the morphological and histopathological aspects of parasitism by Myxobolus sp. in specimens of Metynnis hypsauchen, obtained from the Capim river, in the municipality of Ipixuna do Pará, Pará, Brazil. During the months of August and March, 2018, 20 animals were captured, euthanized and autopsied. With the aid of a stereomicroscope an external and internal investigation was performed on the animals for the purpose of finding lesions or parasitic cysts, followed by confirmation of infection in Light Microscopy (ML). Cysts and Fragments from parasitized tissues were processed using techniques for histology and Scanning Electron Microscopy (SEM). For histology they were stained with Hematoxylin-Eosin (H-E) and Ziehl-Neelsen and for SEM Micrographs were captured, using equipment from the Museu Paraense Emílio Goeldi. The prevalence of parasitism was 60% (12/20) of the specimens, and the cysts were in the epithelium and lumen of the renal tubules, causing histopathological changes. The characteristics of the parasite spores are those associated with the genus Myxobolus, with an ellipsoid format, two polar capsules and a sporoplasm region. It was possible to confirm a high parasite load of Myxobolus, with compromised renal functions. This study is the first to describe Myxospore in Metynnis hypsauchen. |
| first_indexed | 2024-04-13T12:28:20Z |
| format | Article |
| id | doaj.art-bde5cfd7938e454dbb099d9561d58b48 |
| institution | Directory Open Access Journal |
| issn | 1679-9283 1807-863X |
| language | English |
| last_indexed | 2024-04-13T12:28:20Z |
| publishDate | 2020-05-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Biological Sciences |
| spelling | doaj.art-bde5cfd7938e454dbb099d9561d58b482022-12-22T02:46:57ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2020-05-0142e50267e5026710.4025/actascibiolsci.v42i1.5026750267Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspectsJhonata Eduard Farias de Oliveira0Rayline Thaimenne Alves Figueredo1Maria do Perpétuo Socorro Progene Vilhena2José Francisco Berrêdo3José Ledamir Sindeaux-Neto4Edilson Matos5Michele Velasco6Universidade Federal Rural da AmazôniaUniversidade Estadual de CampinasUniversidade Federal Rural da AmazôniaMuseu Paraense Emílio GoeldiUniversidade Federal Rural da AmazôniaUniversidade Federal Rural da AmazôniaUniversidade Federal Rural da AmazôniaIn their natural habitat, fish are constantly threatened by icthyoparasites, notably those from the Phylum Cnidaria, Hatschek, 1888, represented by species of the Myxozoa, responsible for infections in fish that cause complications to their health that can lead to death. Among these parasites, the genus Myxobolus Butschli, 1882 is responsible for the largest number of infections described in fishes from the Americas. This study describes the morphological and histopathological aspects of parasitism by Myxobolus sp. in specimens of Metynnis hypsauchen, obtained from the Capim river, in the municipality of Ipixuna do Pará, Pará, Brazil. During the months of August and March, 2018, 20 animals were captured, euthanized and autopsied. With the aid of a stereomicroscope an external and internal investigation was performed on the animals for the purpose of finding lesions or parasitic cysts, followed by confirmation of infection in Light Microscopy (ML). Cysts and Fragments from parasitized tissues were processed using techniques for histology and Scanning Electron Microscopy (SEM). For histology they were stained with Hematoxylin-Eosin (H-E) and Ziehl-Neelsen and for SEM Micrographs were captured, using equipment from the Museu Paraense Emílio Goeldi. The prevalence of parasitism was 60% (12/20) of the specimens, and the cysts were in the epithelium and lumen of the renal tubules, causing histopathological changes. The characteristics of the parasite spores are those associated with the genus Myxobolus, with an ellipsoid format, two polar capsules and a sporoplasm region. It was possible to confirm a high parasite load of Myxobolus, with compromised renal functions. This study is the first to describe Myxospore in Metynnis hypsauchen.http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50267amazon; serrasalmidae; myxozoan; kidneys |
| spellingShingle | Jhonata Eduard Farias de Oliveira Rayline Thaimenne Alves Figueredo Maria do Perpétuo Socorro Progene Vilhena José Francisco Berrêdo José Ledamir Sindeaux-Neto Edilson Matos Michele Velasco Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects Acta Scientiarum: Biological Sciences amazon; serrasalmidae; myxozoan; kidneys |
| title | Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects |
| title_full | Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects |
| title_fullStr | Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects |
| title_full_unstemmed | Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects |
| title_short | Renal myxoboliosis of Metynnis hypsauchen in the Brazilian Amazon: morphological and histopathological aspects |
| title_sort | renal myxoboliosis of metynnis hypsauchen in the brazilian amazon morphological and histopathological aspects |
| topic | amazon; serrasalmidae; myxozoan; kidneys |
| url | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50267 |
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