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| 125. |  | BARROS, E. P.; ALBUQUERQUE, M. C. F.; CALDEIRA, S. A. F. Efeito de diferentes embalagens e ambientes de armazenamento na germinacao de sementes de aroeira (Myracrodruon urundeuva (Engler) Fr. Allen), copaiba (Copaifera langsdorffi Desf.), goncaleiro (Astronium fraxinifolium Schott) e novateiro (Triplaris brasiliana Cham). Informativo ABRATES, Brasilia, v. 11, n. 2, p. 270, 2001.| Biblioteca(s): Embrapa Cerrados. |
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| 126. | | MAGALHAES, A. A. de; CHOUDHURY, M. M.; MILLAR, A. A.; ALBUQUERQUE, M. M. de. Efeito do déficit de água no solo sobre o ataque de macrophomina phaseolina em feijão. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 17, n. 3, p. 407-411, mar. 1982. Título em inglês: Effect of water deficit on the attack of macrophomina phaseolina on beans.| Biblioteca(s): Embrapa Semiárido; Embrapa Unidades Centrais. |
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| 127. | | ALBUQUERQUE, M. C. F.; NOGUEIRA, R. L.; MILLAN, R. M.; MENDONCA, E. A. F. Efeito do condicionamento osmotico na germinacao de sementes de braquiaria (Brachiaria brizantha (Hoest. ex A. Rich) Stapf), cultivar Marandu. Informativo ABRATES, Brasilia, v.7, n.1/2, p.243, 1997. Trabalho apresentado no 10o. Congresso Brasileiro de Sementes, 1997. Resumo.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 527 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental. |
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Data corrente: |
17/11/2010 |
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Data da última atualização: |
23/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SAMPAIO, F. G.; BOIJINK, C. de L.; SANTOS, L. R. B. DOS; YOSHIOKA, E. T. O.; KALININ, A. L.; RANTIN, F. T. |
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Afiliação: |
FERNANDA GARCIA SAMPAIO, UFSCAR; CHEILA DE LIMA BOIJINK, CPAA; LAILA ROMAGUEIRA BICHARA DOS SANTOS; ELIANE TIE OBA YOSHIOKA, CPAF-AP; ANA LUCIA KALININ; FRANCISCO TADEU RANTIN. |
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Título: |
The combined effect of cooper and low pH on antioxidant defenses and biochemical parameters in neotropical fish pacu, Piaractus mesopotamicus (Holmberg, 1887). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Ecotoxicology, v. 19, n. 5, p. 963-976, 2010. |
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DOI: |
10.1007/s10646-010-0478-z |
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Idioma: |
Inglês |
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Conteúdo: |
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 (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factors caused more significant disturbance in the biomarkers than single-factors. MenosCopper 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 (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factor... Mostrar Tudo |
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Thesagro: |
Pacu; Peixe; Poluição; Qualidade da Água. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31578/1/Ecotoxicology2010.pdf
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|
Marc: |
LEADER 02347naa a2200241 a 4500
001 1867159
005 2021-03-23
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1007/s10646-010-0478-z$2DOI
100 1 $aSAMPAIO, F. G.
245 $aThe combined effect of cooper and low pH on antioxidant defenses and biochemical parameters in neotropical fish pacu, Piaractus mesopotamicus (Holmberg, 1887).$h[electronic resource]
260 $c2010
520 $aCopper 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 (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factors caused more significant disturbance in the biomarkers than single-factors.
650 $aPacu
650 $aPeixe
650 $aPoluição
650 $aQualidade da Água
700 1 $aBOIJINK, C. de L.
700 1 $aSANTOS, L. R. B. DOS
700 1 $aYOSHIOKA, E. T. O.
700 1 $aKALININ, A. L.
700 1 $aRANTIN, F. T.
773 $tEcotoxicology$gv. 19, n. 5, p. 963-976, 2010.
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Embrapa Amazônia Ocidental (CPAA) |
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