The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp.
The objective of the present study was to describe the histology and histochemistry of the mucosal layer of the digestive tube of Piaractus brachypomus, and the histopathology associated with parasitism by Neoechinorhynchus sp. The digestive tube of P. brachypomus consists of three macroscopically d...
| Autor principal: | Oliveira, Maria Inês Braga de |
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| Outros Autores: | Matos, Lorena Vieira de, Silva, Lídia A. da, Chagas, Edsandra Campos, Silva, Grazyelle Sebrenski da, Gomes, Ana Lúcia Silva |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Fish Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16707 |
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oai:repositorio:1-16707 |
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oai:repositorio:1-16707 The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. Oliveira, Maria Inês Braga de Matos, Lorena Vieira de Silva, Lídia A. da Chagas, Edsandra Campos Silva, Grazyelle Sebrenski da Gomes, Ana Lúcia Silva Acanthocephala Anatomy And Histology Animals Animals Parasitosis Characiformes Cytochemistry Cytology Esophagus Fish Disease Gastrointestinal Tract Host Parasite Interaction Intestines Metabolism Mucosa Parasitology Pathology Physiology Stomach Acanthocephala Animal Characiformes Esophagus Fish Diseases Gastrointestinal Tract Helminthiasis, Animals Histocytochemistry Host-parasite Interactions Intestines Mucous Membrane Stomach The objective of the present study was to describe the histology and histochemistry of the mucosal layer of the digestive tube of Piaractus brachypomus, and the histopathology associated with parasitism by Neoechinorhynchus sp. The digestive tube of P. brachypomus consists of three macroscopically distinct portions: short, rectilinear and elastic-walled ooesophagus, J-shaped siphon stomach and a long intestine with rectilinear and curved portions, defined by patterns of villi as foregut, midgut, and hindgut. Histological and histochemical differences were observed in the mucosal layers of the different digestive tube regions, such as intense production of neutral and acidic mucous substances in the pseudostratified mucosal epithelium of the oesophagus; positive periodic acid Schiff reagent (PAS)reactions at the apex of the columnar epithelial cells of the stomach and increased intensity of histochemical reactions in the hindgut region. Neoechinorhynchus sp. was present in 85.7% of specimens examined, with a mean intensity of 7.4 ± 6.2 (±) and abundance of 6.33. Good health of the fish indicated by high relative condition factor values ( Kn ) and occurrence of only mild to moderate alteration in the mucosal layer indicated that Neoechinorhynchus sp. exhibits low pathogenicity towards P. brachypomus hosts in farming environments, with low levels of infection. © 2019 The Fisheries Society of the British Isles 2020-06-15T21:35:51Z 2020-06-15T21:35:51Z 2019 Artigo https://repositorio.inpa.gov.br/handle/1/16707 10.1111/jfb.13934 en Volume 94, Número 4, Pags. 648-659 Restrito Journal of Fish Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Acanthocephala Anatomy And Histology Animals Animals Parasitosis Characiformes Cytochemistry Cytology Esophagus Fish Disease Gastrointestinal Tract Host Parasite Interaction Intestines Metabolism Mucosa Parasitology Pathology Physiology Stomach Acanthocephala Animal Characiformes Esophagus Fish Diseases Gastrointestinal Tract Helminthiasis, Animals Histocytochemistry Host-parasite Interactions Intestines Mucous Membrane Stomach |
| spellingShingle |
Acanthocephala Anatomy And Histology Animals Animals Parasitosis Characiformes Cytochemistry Cytology Esophagus Fish Disease Gastrointestinal Tract Host Parasite Interaction Intestines Metabolism Mucosa Parasitology Pathology Physiology Stomach Acanthocephala Animal Characiformes Esophagus Fish Diseases Gastrointestinal Tract Helminthiasis, Animals Histocytochemistry Host-parasite Interactions Intestines Mucous Membrane Stomach Oliveira, Maria Inês Braga de The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| topic_facet |
Acanthocephala Anatomy And Histology Animals Animals Parasitosis Characiformes Cytochemistry Cytology Esophagus Fish Disease Gastrointestinal Tract Host Parasite Interaction Intestines Metabolism Mucosa Parasitology Pathology Physiology Stomach Acanthocephala Animal Characiformes Esophagus Fish Diseases Gastrointestinal Tract Helminthiasis, Animals Histocytochemistry Host-parasite Interactions Intestines Mucous Membrane Stomach |
| description |
The objective of the present study was to describe the histology and histochemistry of the mucosal layer of the digestive tube of Piaractus brachypomus, and the histopathology associated with parasitism by Neoechinorhynchus sp. The digestive tube of P. brachypomus consists of three macroscopically distinct portions: short, rectilinear and elastic-walled ooesophagus, J-shaped siphon stomach and a long intestine with rectilinear and curved portions, defined by patterns of villi as foregut, midgut, and hindgut. Histological and histochemical differences were observed in the mucosal layers of the different digestive tube regions, such as intense production of neutral and acidic mucous substances in the pseudostratified mucosal epithelium of the oesophagus; positive periodic acid Schiff reagent (PAS)reactions at the apex of the columnar epithelial cells of the stomach and increased intensity of histochemical reactions in the hindgut region. Neoechinorhynchus sp. was present in 85.7% of specimens examined, with a mean intensity of 7.4 ± 6.2 (±) and abundance of 6.33. Good health of the fish indicated by high relative condition factor values ( Kn ) and occurrence of only mild to moderate alteration in the mucosal layer indicated that Neoechinorhynchus sp. exhibits low pathogenicity towards P. brachypomus hosts in farming environments, with low levels of infection. © 2019 The Fisheries Society of the British Isles |
| format |
Artigo |
| author |
Oliveira, Maria Inês Braga de |
| author2 |
Matos, Lorena Vieira de Silva, Lídia A. da Chagas, Edsandra Campos Silva, Grazyelle Sebrenski da Gomes, Ana Lúcia Silva |
| author2Str |
Matos, Lorena Vieira de Silva, Lídia A. da Chagas, Edsandra Campos Silva, Grazyelle Sebrenski da Gomes, Ana Lúcia Silva |
| title |
The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| title_short |
The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| title_full |
The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| title_fullStr |
The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| title_full_unstemmed |
The digestive tube of Piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by Neoechinorhynchus sp. |
| title_sort |
digestive tube of piaractus brachypomus: gross morphology, histology/histochemistry of the mucosal layer and the effects of parasitism by neoechinorhynchus sp. |
| publisher |
Journal of Fish Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16707 |
| _version_ |
1787144706197553152 |
| score |
11.755432 |