Gill Cells
Mostrando 1-12 de 87 artigos, teses e dissertações.
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1. Impact of Anthropogenic Activities on Water Quality of The Paranhana River, Southern Brazil
Abstract: The Paranhana River, located in Southern Brazil, is one of the major tributaries of the Sinos River basin and receives mainly industrial and domestic effluents. In the present study, water physicochemical and microbiological analyses, condition factor, micronucleus test, gill histopathology and metal bioaccumulation in the muscle of the native fish
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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2. Mitochondria-rich cells changes induced by nitrite exposure in tambaqui (Colossoma macropomum Cuvier, 1818)
ABSTRACT The gill mitochondria-rich cells of the juvenile Amazonian fish Colossoma macropomum were analyzed using light and scanning and transmission electron microscopy after 96 h exposure to 0.04 and 0.2 mM nitrite. Although the number of mitochondria-rich cells decreased significantly in the lamellar epithelium, no decrease was found in the interlamellar
An. Acad. Bras. Ciênc.. Publicado em: 15/05/2017
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3. Histological Alterations in Common Carp (Cyprinus carpio Linnaeus, 1758) Gills as Potential Biomarkers for Fungicide Contamination
ABSTRACTThe present study aimed to investigate the histological alterations in common carp gills caused by a fosetyl-Al and fenamidone based fungicide tested in laboratory conditions at 30, 38 and 50 mg/L concentration. In general, all the tested concentrations activated compensatory-adaptive mechanisms, which caused pathological changes in the fish gills. R
Braz. arch. biol. technol.. Publicado em: 2015-10
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4. Morphological, histological and histochemical analysis of the digestive tract of Trachelyopterusstriatulus (Siluriformes: Auchenipteridae)
ABSTRACT The digestive tract of Trachelyopterus striatulus (Steindachner, 1877) was studied using morphological, histological, and histochemical techniques. The barbels, lips and tongue had stratified squamous epithelium with mucous, claviform cells, and taste buds. Trachelyopterus striatulus had a dental plaque with villiform teeth. The bucopharyngeal cavit
Zoologia (Curitiba). Publicado em: 2015-08
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5. Histopathological Alterations in Common Carp (Cyprinus carpio L.) Gills Caused by Thiamethoxam
This work aimed to study the effect of new neonicotinoid thiamethoxam on the histological structure of common carp (Cyprinus carpio, L.) gills. Three experimental groups of fish were treated with 6.6, 10 and 20 mg/l thiamethoxam in laboratory conditions. Results showed different histological changes in the gill epithelium, which included lamellar lifting, ed
Braz. arch. biol. technol.. Publicado em: 2014-12
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6. Transporte de cádmio em células branquiais do caraguejo de mangue Ucides cordatus / Cadmium transport in gill cells of the mangrove crab Ucides cordatus
O Ucides cordatus é um caranguejo que habita mangues. Estas regioes podem ser contaminadas com o cádmio, através de dejetos de indústrias e descarte de pilhas e baterias, atingindo o animal por meio de suas brânquias. Assim, o objetivo da dissertação foi verificar a cinética de transporte do cádmio com o uso de inibidores específicos, e sua intera�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/07/2012
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7. The combined effect of cooper and low pH on antioxidant defenses and biochemical parameters in neotropical fish pacu, Piaractus mesopotamicus (Holmberg, 1887).
Copper sulfate is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damage. Pacu, Piaractus mesopotamicus, (wt = 43.4 ± 3.35 g) were distributed in experimental tanks (n = 10; 180 l) and exposed for 48 h to control (without copper addition), 0.4Cu (0.4 mg l?1), 0CupH (
Ecotoxicology. Publicado em: 2011
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8. Morphologic analysis of developmental phases and gill ontogenesis in neotropical species Poecilia vivipara (Cyprinodontiformes: Poeciliidae) exposed to different salinities
The present study evaluated and characterized the different phases of development and the cell types present in the gill epithelium of embryos, larvae, and fingerlings of guppy (Poecilia vivipara Bloch & Schneider, 1801) specimens exposed to water with salinity ranging from 0‰ to 20‰. The development of P. vivipara was classified into eight phases. The y
Zoologia (Curitiba). Publicado em: 2010-08
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9. A exposição aguda ao chumbo induz danos no DNA de vários tecidos do peixe Prochilodus lineatus
Currently there are many works describing the presence of metal pollution in water bodies. Among these metals, lead (Pb) is considered a chemical of great environmental impact due to its high toxicity to live organisms and its wide use in the industrial process of many products. Considering its toxicity and the lack of knowledge concerning lead effects to ne
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/2009
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10. 65Zn2+ transport processes of isolated gill epithelial cells of the American lobster Homarus americanus / Caracterização do transporte de zinco em células isoladas do epitélio branquial da lagosta Homarus americanus
Os filamentos branquiais da lagosta Americana, Homarus americanus, foram dissociados em solução salina fisiológica e os diversos tipos celulares separados em gradiente de 30, 40, 50 e 80% de sacarose através de centrifugação de alta velocidade. As células provenientes de cada solução de sacarose foram incubadas em 65Zn2+ visando caracterizar a tomad
Publicado em: 2008
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11. Defesas antioxidantes e alterações bioquímicas no pacu, Piaractus mesopotamicus (Holmberg, 1887), em resposta à exposição ao cobre, à hipóxia e ao meio ácido, isolados ou associados
Copper sulfate (CuSO4) is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damages, prejudicing the respiratory gasses exchange. Pacu, Piaractus mesopotamicus, (Wt = 43,4 3,35 g) were distributed in experimental tanks (n = 10; 180 L) and exposed for 48 h to control (wi
Publicado em: 2008
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12. Alterações morfofuncionais e metabólicas no teleósteo de água doce matrinxã, Brycon cephalus (Günther, 1869) exposto ao organofosforado metil paration (Folisuper 600BR).
The xenobiotics influxes into the aquatic systems are continuous increasing in Brazil due to their use in the agriculture and to control insects in aquaculture. In the present study was evaluated if the exposure of the freshwater teleost fish matrinxã (Brycon cephalus) to sublethal concentration of the organophosphorus pesticides methylparathion (MP) induce
Publicado em: 2006