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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
07/12/2016 |
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Data da última atualização: |
30/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CLARO, P. I. C.; SENA, A.; RODRIGUES, V. B.; MANOEL, A. F.; MATTOSO, L. H. C.; MARCONCINI, J. M. |
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Afiliação: |
LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; JOSE MANOEL MARCONCINI, CNPDIA. |
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Título: |
Optically transparent cellulose nanopaper from curauá leaves fibers. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: BRAZIL MRS MEETING - SBPMAT, 15, 2016, Rio de Janeiro. Proceedings... Rio de Janeiro: SBPMat, 2016. p. 36-37. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Evento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00578nam a2200169 a 4500
001 2058092
005 2018-07-30
008 2016 bl uuuu u00u1 u #d
100 1 $aCLARO, P. I. C.
245 $aOptically transparent cellulose nanopaper from curauá leaves fibers.$h[electronic resource]
260 $aIn: BRAZIL MRS MEETING - SBPMAT, 15, 2016, Rio de Janeiro. Proceedings... Rio de Janeiro: SBPMat, 2016. p. 36-37.$c2016
653 $aEvento
700 1 $aSENA, A.
700 1 $aRODRIGUES, V. B.
700 1 $aMANOEL, A. F.
700 1 $aMATTOSO, L. H. C.
700 1 $aMARCONCINI, J. M.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/01/2019 |
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Data da última atualização: |
22/01/2019 |
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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: |
DANTZGER, D. D.; JONSSON, C. M.; AOYAMA, H. |
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Afiliação: |
DARLENE DENISE DANTZGER, IB-UNICAMP; CLAUDIO MARTIN JONSSON, CNPMA; HIROSHI AYOAMA, IB-UNICAMP. |
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Título: |
Mixtures of diflubenzuron and p-chloroaniline changes the activities of enzymes biomarkers on tilapia fish (Oreochromis niloticus) in the presence and absence of soil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Ecotoxicology and Environmental Safety, v. 148, p. 367-376, 2018. |
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DOI: |
http://dx.doi.org/10.1016/j.ecoenv.2017.10.054 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The insecticide Diflubenzuron (DFB), used by many fish farming, when metabolized or degraded produces the extremely toxic compound p-chloroaniline (PCA). Once in the aquatic environment, these compounds can form mixtures and their bioavailability depends on factors such as the presence of soil. The toxic effects of the isolated compounds and their mixtures in the proportions: 75%, 50%, and 25% of PCA were analyzed in tilapia (Oreochromis niloticus) in the presence and absence of soil after 96h. The enzymes catalase (CAT), acid (AcP) and alkaline (AlP) phosphatases and alanine (ALT) and aspartate (AST) aminotransferases of the liver of the tilapia (Oreochromis niloticus) were used as biomarkers. DFB and the mixture containing 75% of this compound did not present high toxicity to fish; however, 25 mg/L of PCA alone and 15 mg/L of the mixture with 75% of this compound promoted 50% mortality of tilapia (Oreochromis niloticus). In the presence of soil, these toxicity values decreased to 37 and 25 mg/L, respectively. Independent of the presence of soil, a synergistic effect was observed when the proportion of PCA was 75% and to the mixture, with 25% PCA was observed the antagonistic effect. Different concentrations of the compounds and their mixtures induced CAT activity independently of the presence of soil. Additionally, increases in phosphatases and transaminases activities were observed. In some cases, the enzymes also had their activities decreased and the dose-dependence effects were not observed. This research showed that the presence of soil influenced the toxicity of the compounds but not altered interaction type among them. Diflubenzuron, p-chloroaniline, and mixtures thereof caused disorders in enzymes important for the health of tilapia (Oreochromis niloticus). MenosAbstract: The insecticide Diflubenzuron (DFB), used by many fish farming, when metabolized or degraded produces the extremely toxic compound p-chloroaniline (PCA). Once in the aquatic environment, these compounds can form mixtures and their bioavailability depends on factors such as the presence of soil. The toxic effects of the isolated compounds and their mixtures in the proportions: 75%, 50%, and 25% of PCA were analyzed in tilapia (Oreochromis niloticus) in the presence and absence of soil after 96h. The enzymes catalase (CAT), acid (AcP) and alkaline (AlP) phosphatases and alanine (ALT) and aspartate (AST) aminotransferases of the liver of the tilapia (Oreochromis niloticus) were used as biomarkers. DFB and the mixture containing 75% of this compound did not present high toxicity to fish; however, 25 mg/L of PCA alone and 15 mg/L of the mixture with 75% of this compound promoted 50% mortality of tilapia (Oreochromis niloticus). In the presence of soil, these toxicity values decreased to 37 and 25 mg/L, respectively. Independent of the presence of soil, a synergistic effect was observed when the proportion of PCA was 75% and to the mixture, with 25% PCA was observed the antagonistic effect. Different concentrations of the compounds and their mixtures induced CAT activity independently of the presence of soil. Additionally, increases in phosphatases and transaminases activities were observed. In some cases, the enzymes also had their activities decreased and the dose-depe... Mostrar Tudo |
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Palavras-Chave: |
Enzymes biomarkers; P-chloroaniline. |
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Thesagro: |
Inseticida; Piscicultura; Tilápia; Tilápia nilótica; Toxidez. |
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Thesaurus NAL: |
Biomarkers; Diflubenzuron; Enzymes; Pesticide mixtures; Soil; Tilapia (common name); Toxicity. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02821naa a2200325 a 4500
001 2104611
005 2019-01-22
008 2018 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.ecoenv.2017.10.054$2DOI
100 1 $aDANTZGER, D. D.
245 $aMixtures of diflubenzuron and p-chloroaniline changes the activities of enzymes biomarkers on tilapia fish (Oreochromis niloticus) in the presence and absence of soil.$h[electronic resource]
260 $c2018
520 $aAbstract: The insecticide Diflubenzuron (DFB), used by many fish farming, when metabolized or degraded produces the extremely toxic compound p-chloroaniline (PCA). Once in the aquatic environment, these compounds can form mixtures and their bioavailability depends on factors such as the presence of soil. The toxic effects of the isolated compounds and their mixtures in the proportions: 75%, 50%, and 25% of PCA were analyzed in tilapia (Oreochromis niloticus) in the presence and absence of soil after 96h. The enzymes catalase (CAT), acid (AcP) and alkaline (AlP) phosphatases and alanine (ALT) and aspartate (AST) aminotransferases of the liver of the tilapia (Oreochromis niloticus) were used as biomarkers. DFB and the mixture containing 75% of this compound did not present high toxicity to fish; however, 25 mg/L of PCA alone and 15 mg/L of the mixture with 75% of this compound promoted 50% mortality of tilapia (Oreochromis niloticus). In the presence of soil, these toxicity values decreased to 37 and 25 mg/L, respectively. Independent of the presence of soil, a synergistic effect was observed when the proportion of PCA was 75% and to the mixture, with 25% PCA was observed the antagonistic effect. Different concentrations of the compounds and their mixtures induced CAT activity independently of the presence of soil. Additionally, increases in phosphatases and transaminases activities were observed. In some cases, the enzymes also had their activities decreased and the dose-dependence effects were not observed. This research showed that the presence of soil influenced the toxicity of the compounds but not altered interaction type among them. Diflubenzuron, p-chloroaniline, and mixtures thereof caused disorders in enzymes important for the health of tilapia (Oreochromis niloticus).
650 $aBiomarkers
650 $aDiflubenzuron
650 $aEnzymes
650 $aPesticide mixtures
650 $aSoil
650 $aTilapia (common name)
650 $aToxicity
650 $aInseticida
650 $aPiscicultura
650 $aTilápia
650 $aTilápia nilótica
650 $aToxidez
653 $aEnzymes biomarkers
653 $aP-chloroaniline
700 1 $aJONSSON, C. M.
700 1 $aAOYAMA, H.
773 $tEcotoxicology and Environmental Safety$gv. 148, p. 367-376, 2018.
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