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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
28/11/2019 |
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Data da última atualização: |
28/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CLEMENTE, Z.; SILVA, G. H. da; NUNES, M. C. S.; MARTINEZ, D. S. T.; MAURER-MORELLI, C. V.; THOMAZ, A. A.; CASTRO, V. L. S. S. de. |
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Afiliação: |
ZAIRA CLEMENTE, LNNano-CNPEM; GABRIELA HELENA DA SILVA, CENA-USP; MIRIAM CELI DE SOUZA NUNES, FCM-UNICAMP; DIEGO STEFANI TEODORO MARTINEZ, CENA-USP; CLAUDIA VIANA MAURER-MORELLI, FCM-UNICAMP; ANDRE ALEXANDRE THOMAZ, FCM-UNICAMP; VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA. |
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Título: |
Exploring the mechanisms of graphene oxide behavioral and morphological changes in zebrafish. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 26, n. 29, p. 30508-30523, 2019. |
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DOI: |
https://doi.org/10.1007/s11356-019-05870-z |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The presence of natural organic matter such as humic acid (HA) can influence the behavior of graphene oxide (GO) in the aquatic environment. In this study, zebrafish embryos were analyzed after 5 and 7 days of exposure to GO (100 mg L-1) and HA (20 mg L?1) alone or together. The results indicated that, regardless of the presence of HA, larvae exposed to GO for 5 days showed an increase in locomotor activity, reduction in the yolk sac size, and total length and inhibition of AChE activity, but there was no difference in enzyme expression. The statistical analysis indicated that the reductions in total larval length, yolk sac size, and AChE activity in larvae exposed to GO persisted in relation to the control group, but there was a recovery of these parameters in groups also exposed to HA. Larvae exposed to GO for 7 days did not show significant differences in locomotor activity, but the RT-PCR gene expression analysis evidenced an increase in the AChE expression. Since the embryos exposed to GO showed a reduction in overall length, they were submitted to confocal microscopy and their muscle tissue configuration investigated. No changes were observed in the muscle tissue. The results indicated that HA is associated with the toxicity risk modulation by GO and that some compensatory homeostasis mechanisms may be involved in the developmental effects observed in zebrafish. |
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Palavras-Chave: |
Óxido de grafeno. |
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Thesagro: |
Composto Químico; Matéria Orgânica; Peixe de Água Doce; Toxidez. |
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Thesaurus Nal: |
Aquatic environment; Behavior change; Biomarkers; Danio rerio; Ecotoxicology; Environmental impact; Graphene oxide; Humic acids; Toxicity. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205788/1/Castro-Explorin-Graphene-2019.pdf
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Marc: |
LEADER 02527naa a2200373 a 4500
001 2115452
005 2019-11-28
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-019-05870-z$2DOI
100 1 $aCLEMENTE, Z.
245 $aExploring the mechanisms of graphene oxide behavioral and morphological changes in zebrafish.$h[electronic resource]
260 $c2019
520 $aAbstract: The presence of natural organic matter such as humic acid (HA) can influence the behavior of graphene oxide (GO) in the aquatic environment. In this study, zebrafish embryos were analyzed after 5 and 7 days of exposure to GO (100 mg L-1) and HA (20 mg L?1) alone or together. The results indicated that, regardless of the presence of HA, larvae exposed to GO for 5 days showed an increase in locomotor activity, reduction in the yolk sac size, and total length and inhibition of AChE activity, but there was no difference in enzyme expression. The statistical analysis indicated that the reductions in total larval length, yolk sac size, and AChE activity in larvae exposed to GO persisted in relation to the control group, but there was a recovery of these parameters in groups also exposed to HA. Larvae exposed to GO for 7 days did not show significant differences in locomotor activity, but the RT-PCR gene expression analysis evidenced an increase in the AChE expression. Since the embryos exposed to GO showed a reduction in overall length, they were submitted to confocal microscopy and their muscle tissue configuration investigated. No changes were observed in the muscle tissue. The results indicated that HA is associated with the toxicity risk modulation by GO and that some compensatory homeostasis mechanisms may be involved in the developmental effects observed in zebrafish.
650 $aAquatic environment
650 $aBehavior change
650 $aBiomarkers
650 $aDanio rerio
650 $aEcotoxicology
650 $aEnvironmental impact
650 $aGraphene oxide
650 $aHumic acids
650 $aToxicity
650 $aComposto Químico
650 $aMatéria Orgânica
650 $aPeixe de Água Doce
650 $aToxidez
653 $aÓxido de grafeno
700 1 $aSILVA, G. H. da
700 1 $aNUNES, M. C. S.
700 1 $aMARTINEZ, D. S. T.
700 1 $aMAURER-MORELLI, C. V.
700 1 $aTHOMAZ, A. A.
700 1 $aCASTRO, V. L. S. S. de
773 $tEnvironmental Science and Pollution Research$gv. 26, n. 29, p. 30508-30523, 2019.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Acre; Embrapa Florestas. |
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Data corrente: |
24/02/2011 |
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Data da última atualização: |
27/11/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
ARAUJO, H. J. B. de; MAGALHAES, W. L. E.; OLIVEIRA, L. C. de; SA, C. P. de; CORREIA, M. F. |
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Afiliação: |
HENRIQUE JOSE BORGES DE ARAUJO, CPAF-AC; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; LUIS CLAUDIO DE OLIVEIRA, CPAF-AC; CLAUDENOR PINHO DE SA, CPAF-AC; MANOEL FREIRE CORREIA, CPAF-AC. |
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Título: |
Durabilidade de estacas de eucalipto (Eucalyptus sp.) tratadas com CCA após 60 meses de ensaio no campo experimental da Embrapa Acre, Rio Branco, Acre. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2010. |
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Páginas: |
8 p. |
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Série: |
(Embrapa Acre. Comunicado técnico, 176). |
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ISSN: |
0100-8668 |
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Idioma: |
Português |
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Conteúdo: |
O presente estudo objetiva avaliar o grau de degradação de organismos xilófagos, fungos e cupins, de estacas de eucalipto não tratadas e tratadas a vácuo e pressão com preservativo CCA e expostas, há 60 meses, em ensaio de campo na área experimental da Embrapa Acre, em Rio Branco, Estado do Acre. |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Arseniato de cobre cromado; Arseniato de cobre cromatado (CCA); CCA; Conservación de la madera; Durabilidade; Embrapa Acre; Eucalyptus sp; Madera tropical; Manejo de enfermedades y plagas; Procesamiento al vacío; Rio Branco (AC); Termites; Tratamiento a alta presión; Tratamiento químico; Vaccum processing; Western Amazon. |
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Thesagro: |
Campo Experimental; Composto químico; Cupim da madeira; Essência florestal; Eucalipto; Fungo; Infestação; Inseto xilófago; Isoptera; Madeira; Preservação da madeira; Profilaxia; Substância conservadora da madeira; Tratamento. |
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Thesaurus NAL: |
Chemical treatment; Chromated copper arsenate; Disease and pest management; Eucalyptus; Fungi; High pressure treatment; Tropical wood; Wood preservation. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/131863/1/23828.pdf
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Marc: |
LEADER 02338nam a2200685 a 4500
001 1879704
005 2023-11-27
008 2010 bl uuuu u0uu1 u #d
022 $a0100-8668
100 1 $aARAUJO, H. J. B. de
245 $aDurabilidade de estacas de eucalipto (Eucalyptus sp.) tratadas com CCA após 60 meses de ensaio no campo experimental da Embrapa Acre, Rio Branco, Acre.$h[electronic resource]
260 $aRio Branco, AC: Embrapa Acre$c2010
300 $a8 p.
490 $a(Embrapa Acre. Comunicado técnico, 176).
520 $aO presente estudo objetiva avaliar o grau de degradação de organismos xilófagos, fungos e cupins, de estacas de eucalipto não tratadas e tratadas a vácuo e pressão com preservativo CCA e expostas, há 60 meses, em ensaio de campo na área experimental da Embrapa Acre, em Rio Branco, Estado do Acre.
650 $aChemical treatment
650 $aChromated copper arsenate
650 $aDisease and pest management
650 $aEucalyptus
650 $aFungi
650 $aHigh pressure treatment
650 $aTropical wood
650 $aWood preservation
650 $aCampo Experimental
650 $aComposto químico
650 $aCupim da madeira
650 $aEssência florestal
650 $aEucalipto
650 $aFungo
650 $aInfestação
650 $aInseto xilófago
650 $aIsoptera
650 $aMadeira
650 $aPreservação da madeira
650 $aProfilaxia
650 $aSubstância conservadora da madeira
650 $aTratamento
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aArseniato de cobre cromado
653 $aArseniato de cobre cromatado (CCA)
653 $aCCA
653 $aConservación de la madera
653 $aDurabilidade
653 $aEmbrapa Acre
653 $aEucalyptus sp
653 $aMadera tropical
653 $aManejo de enfermedades y plagas
653 $aProcesamiento al vacío
653 $aRio Branco (AC)
653 $aTermites
653 $aTratamiento a alta presión
653 $aTratamiento químico
653 $aVaccum processing
653 $aWestern Amazon
700 1 $aMAGALHAES, W. L. E.
700 1 $aOLIVEIRA, L. C. de
700 1 $aSA, C. P. de
700 1 $aCORREIA, M. F.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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