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| Registros recuperados : 226 | |
| 161. |  | SOARES, C. D.; PELEGRINI, M. D. B; MELLO, M. A. M. de M.; PAULA, V. J. de; JONSSON, C. M. Toxicidade aguda dos herbicidas Ametrina, Tebuthiuron e Velpar K para alevinos de tilápia (Oreochromis niloticus). In: CONGRESSO INTERINSTITUCIONAL DE INICIAÇÃO CIENTÍFICA, 6., 2012, Jaguariúna. [Anais...] Jaguariúna: Embrapa Meio Ambiente, 2012. 1 CD ROM. Nº 12415.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 165. | | CLEMENTE, Z.; CASTRO, V. L. S. S. de; FEITOSA, L. O.; LIMA, R.; JONSSON, C. M.; MAIA, A. de H. N.; FRACETO, L. F. Acute exposure of fish to nano-TiO2 at environmental levels of ultraviolet light. In: THE BRITISH TOXICOLOGY SOCIETY SPRING CONGRESS, 2013, Birmingham. Abstracts... Birmingham: The British Toxicology Society, 2013. Ref. P004.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 166. | | DE NARDO, E. A. B.; CAPALBO, D. M. F.; GATTAZ, N. C.; SA, L. A. N. de; JONSSON, C. M.; FERREIRA, S. Bancos de dados sobre análise de risco e impacto ambiental de liberações de agentes de controle biológico. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 4., 1994, Gramado. Anais: Sessão de Posteres. Pelotas: EMBRAPA-CPACT, 1994. p.92 (EMBRAPA-CPACT. Documentos, 5).| Biblioteca(s): Embrapa Meio Ambiente. |
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| 167. | | CASTRO, V. L. S. S. de; JESUS-HITZSCHKY, K. R. e de; CORDEIRO, L. A. M.; MARTORANO, L. G.; JONSSON, C. M. Bioindicadores para estudo dos riscos ambientais causados por agroquímicos na Amazônia e Cerrado - um instrumento de manejo sustentável. In: SIMPÓSIO SOBRE INOVAÇÃO E CRIATIVIDADE CIENTÍFICA NA EMBRAPA, 2., 2010, Brasília, DF. Resumos... Brasília, DF: Embrapa, 2010. Poster 108.| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio Ambiente. |
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| 168. | | CLEMENTE, Z.; CASTRO, V. L. S. S. de; FEITOSA, L. O.; LIMA, R.; JONSSON, C. M.; MAIA, A. de H. N.; FRACETO, L. F. Biomarker evaluation in fish after prolonged exposure to nano-TiO2: influence of illumination conditions and crystal phase. Journal of Nanoscience and Nanotechnology, Stevenson Ranch, v. 15, n. 7., p. 5424-5433, 2015.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 170. | | CASTRO, V. L. S. S. de; CLEMENTE, Z.; JONSSON, C. M.; SILVA, M. S. G. M. e; VALLIM, J. H.; MEDEIROS, A. M. Z.; MARTINEZ, D. S. T. Avaliação de risco ambiental estimado pela exposição ao óxido de grafeno. In: WORKSHOP DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais... São Carlos: Embrapa Instrumentação, 2017. p. 651-654.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 171. | | GIL, J. A.; DIAS, P. da S.; BOMPADRE, T. F. V.; QUEIROZ, J. F. de; JONSSON, C. M.; CASTRO, V. L. S. S. de; ISHIKAWA, M. M. Avaliação dos parâmetros hematológicos do Astyanax altiparanae (Garutti & Britski, 2000) expostos a diferentes concentrações de triclosan. In: CONGRESSO BRASILEIRO DE AQUICULTURA E BIOLOGIA AQUÁTICA, 10., 2023, Florianópolis. Anais eletrônicos... Florianópolis: UFSC, Aquabio, 2023.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 172. | | JONSSON, C. M.; OLIVEIRA FILHO, E. C.; MAIA, A. de H. N.; CARBALLO HONDAL, O.; MELO, I. S. de; CAPALBO, D. M. F. Avaliação dos efeitos adversos de agentes microbianos com potencial uso agrícola e domissanitario para o invertebrado aquático Daphnia similis. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida: resumos. Brasília: DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. 1 CD-ROM.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 173. | | JONSSON, C. M.; OLIVEIRA-FILHO, E. C.; MAIA, A. H. N.; CARBALLO-HONDAL, O.; MELO, I. S.; CAPALBO, D. M. F. Avaliação dos efeitos adversos de agentes microbianos com potencial uso agrícola e domissanitário para o invertebrado aquático Daphnia simillis. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida. Resumos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. 1 CD-ROM.| Biblioteca(s): Embrapa Cerrados. |
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| 174. | | GIL, J. A.; DIAS, P. da S.; VALLIM, J. H.; BOMPADRE, T. F. V.; JONSSON, C. M.; CASTRO, V. L. S. S. de; ISHIKAWA, M. M. Avaliação do padrão de crescimento de larvas de Astyanax altiparanae (Garutti & Britski, 2000) expostos a diferentes concentrações de triclosan. In: CONGRESSO BRASILEIRO DE AQUICULTURA E BIOLOGIA AQUÁTICA, 10., 2023, Florianópolis. Anais eletrônicos... Florianópolis: UFSC, Aquabio, 2023.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 175. | | TESOLIN, G. A. S.; MARSON, M. M.; MATALLO, M. B.; FRANCO, D. A. S.; ALMEIDA, S. D. B.; JONSSON, C. M.; MOURA, M. A. M. Avaliação de indicadores de toxicidade da ametrina para o Paulistinha (Danio rerio). In: REUNIÃO CIENTÍFICA DO INSTITUTO DE PESCA, 11., 2013, São Paulo. Resumos... São Paulo: Instituto de Pesca, 2013. p. 260-262.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 176. | | CLEMENTE, Z.; CASTRO, V. L. S. S. de; FEITOSA, L. O.; LIMA, R.; JONSSON, C. M.; MAIA, A. de H. N.; FRACETO, L. F. Fish exposure to nano-TiO2 under different experimental conditions: methodological aspects for nanoecotoxicology investigations. Science of the Total Environment, Amsterdam, v. 463-464, p. 647-656, 2013.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 177. | | SHIROMA, L. S.; SOARES, M. P.; CARDOSO, I. L.; ISHIKAWA, M. M.; JONSSON, C. M.; QUEIROZ, S. C. do N. de. Evaluation of health and environmental risks for juvenile tilapia (Oreochromis niloticus) exposed to florfenicol. Heliyon, v. 6, n. 12, e05716, 2020.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 178. | | BARROS, E. S. de; JONSSON, C. M.; FIGUEIREDO, R. M. C.; SOUZA, I. A.; SOUZA, R. C.; SILVA, P. T. de S. e. Degradação de resíduo de Azometina H por reagente Fenton solar. In: ENCONTRO SOBRE APLICAÇÕES AMBIENTAIS DE PROCESSOS OXIDATIVOS AVANÇADOS, 7.; CONGRESSO IBEROAMERICANO DE PROCESSOS OXIDATIVOS AVANÇADO, 1, 2013, Recife. Anais... Recife: UFPE, 2013. 1 CD-ROM.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 179. | | CARRA, M. L.; SAMPAIO, F. G.; JONSSON, C. M.; GONÇALVES, V. T.; DAL’BÓ, G. A.; NUNES, K. S. D.; REYES, F. G. R. Efeitos da administração oral de sulfametazina na hematologia e na defesa antioxidante da tilápia do Nilo (Oreochromis niloticus). In: CONGRESSO DA SOCIEDADE BRASILEIRA DE AQUICULTURA E BIOLOGIA AQUÁTICA, 6., 2014, Foz do Iguaçu. Anais... Foz do Iguaçu: Sociedade Brasileira de Aquicultura e Biologia Aquática, 2014.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 180. | | JONSSON, C. M.; CLEMENTE, Z.; CASTRO, V. L. S. S. de; CASTANHA, R. F.; VALLIM, J. H.; DOMINGOS, N.; BLUMEL, S. Effects of graphene oxide on aquatic macrophyte under the influence of humic substances. In: SETAC EUROPE ANNUAL MEETING, 26., 2016, Nantes. Proceedings... Brussels: SETAC, 2016. Ref. TU038. p. 201-202.| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 226 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/04/2017 |
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Data da última atualização: |
10/07/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
JONSSON, C. M.; CLEMENTE, Z.; CASTRO, V. L. S. S. de; CASTANHA, R. F.; VALLIM, J. H.; DOMINGOS, N.; BLUMEL, S. |
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Afiliação: |
CLAUDIO MARTIN JONSSON, CNPMA; Z. CLEMENTE; VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA; RODRIGO FERNANDES CASTANHA, CNPMA; JOSE HENRIQUE VALLIM, CNPMA; NEUSA DOMINGOS, CNPMA; S. BLUMEL. |
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Título: |
Effects of graphene oxide on aquatic macrophyte under the influence of humic substances. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: SETAC EUROPE ANNUAL MEETING, 26., 2016, Nantes. Proceedings... Brussels: SETAC, 2016. Ref. TU038. |
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Páginas: |
p. 201-202. |
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Idioma: |
Inglês |
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Conteúdo: |
The behavior of nanostructured graphene oxide (GO) in the environment is complex and must be completely understood to evaluate the risk involved. Studies show that humic acid (HA) can stabilize nanomaterials in water and change its behavior. The aquatic macrophyte duckweed (Lemna minor) is a good plant model for adverse effects evaluation of many test-materials due to its fast growth and small size. This study assessed the effect of GO, with and without HA, on the growth of L. minor on fronds number and biomass changes. The plants were exposed during 7 days to the nominal concentrations of GO equals to 0.0 (control), 0.1, 1.0, 10.0 and 100.0 mg L-1, in the absence or in the presence of 20 mg L-1 of HA. Tests were conducted in multiwell polystyreneplates where each well contained two fronds at the start of the experiment. The number of replicates for each test?concentration was 24 wells. The plants were exposed to a constant photoperiod (24:0, light:dark cycle) supplied by white fluorescent lamps (~700 lux) at the temperature of 20± 2 ºC. The fronds number was counted daily and the wet weight was assessed at the end of the experiment. The concentration that promoted 50% of inhibition in the growth rate in terms of fronds number (EC50-7d growth) and the concentration that promoted 50% of wet weight reduction (EC50-7d biomass) were calculated. The reduction of the growth rate by GO at the concentration of 100 mg L-1 was remarkable detected (P < 0.001) in the absence of the humic substance (HA). The HA seems to contribute with such reduction because this effect was also observed at the GO concentrations of 1.0, 10.0 and 100.0 mg L-1 in the presence of the humic substance (p< 0.01, p< 0.001 and p< 0.001, respectively). Although, the calculated EC50-7d growth for these exposures, with and without HA, was >100 mg L-1. This value attributes a practically non-toxicity for the test-material in terms of fronds production. On the other hand, the calculated EC50-7d biomass for the GO in the presence of HA or not was 2.8 and 2.4 mg L-1 respectively. These results indicate that the adverse effects of GO in L. minor are more pronounced on the biomass production since it was clearly observed that reductions in the fronds sizes were greater than in the fronds number. The EC50-7d biomass values assigns a moderate toxicity of GO to L. minor and these data may be useful for the establishment of maximum concentrations limits of this material in water bodies. MenosThe behavior of nanostructured graphene oxide (GO) in the environment is complex and must be completely understood to evaluate the risk involved. Studies show that humic acid (HA) can stabilize nanomaterials in water and change its behavior. The aquatic macrophyte duckweed (Lemna minor) is a good plant model for adverse effects evaluation of many test-materials due to its fast growth and small size. This study assessed the effect of GO, with and without HA, on the growth of L. minor on fronds number and biomass changes. The plants were exposed during 7 days to the nominal concentrations of GO equals to 0.0 (control), 0.1, 1.0, 10.0 and 100.0 mg L-1, in the absence or in the presence of 20 mg L-1 of HA. Tests were conducted in multiwell polystyreneplates where each well contained two fronds at the start of the experiment. The number of replicates for each test?concentration was 24 wells. The plants were exposed to a constant photoperiod (24:0, light:dark cycle) supplied by white fluorescent lamps (~700 lux) at the temperature of 20± 2 ºC. The fronds number was counted daily and the wet weight was assessed at the end of the experiment. The concentration that promoted 50% of inhibition in the growth rate in terms of fronds number (EC50-7d growth) and the concentration that promoted 50% of wet weight reduction (EC50-7d biomass) were calculated. The reduction of the growth rate by GO at the concentration of 100 mg L-1 was remarkable detected (P < 0.001) in the absence of the humi... Mostrar Tudo |
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Thesaurus NAL: |
Graphene; Macrophytes. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161623/1/jonsson.pdf
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Marc: |
LEADER 03181nam a2200217 a 4500
001 2068118
005 2017-07-10
008 2016 bl uuuu u00u1 u #d
100 1 $aJONSSON, C. M.
245 $aEffects of graphene oxide on aquatic macrophyte under the influence of humic substances.$h[electronic resource]
260 $aIn: SETAC EUROPE ANNUAL MEETING, 26., 2016, Nantes. Proceedings... Brussels: SETAC, 2016. Ref. TU038.$c2016
300 $ap. 201-202.
520 $aThe behavior of nanostructured graphene oxide (GO) in the environment is complex and must be completely understood to evaluate the risk involved. Studies show that humic acid (HA) can stabilize nanomaterials in water and change its behavior. The aquatic macrophyte duckweed (Lemna minor) is a good plant model for adverse effects evaluation of many test-materials due to its fast growth and small size. This study assessed the effect of GO, with and without HA, on the growth of L. minor on fronds number and biomass changes. The plants were exposed during 7 days to the nominal concentrations of GO equals to 0.0 (control), 0.1, 1.0, 10.0 and 100.0 mg L-1, in the absence or in the presence of 20 mg L-1 of HA. Tests were conducted in multiwell polystyreneplates where each well contained two fronds at the start of the experiment. The number of replicates for each test?concentration was 24 wells. The plants were exposed to a constant photoperiod (24:0, light:dark cycle) supplied by white fluorescent lamps (~700 lux) at the temperature of 20± 2 ºC. The fronds number was counted daily and the wet weight was assessed at the end of the experiment. The concentration that promoted 50% of inhibition in the growth rate in terms of fronds number (EC50-7d growth) and the concentration that promoted 50% of wet weight reduction (EC50-7d biomass) were calculated. The reduction of the growth rate by GO at the concentration of 100 mg L-1 was remarkable detected (P < 0.001) in the absence of the humic substance (HA). The HA seems to contribute with such reduction because this effect was also observed at the GO concentrations of 1.0, 10.0 and 100.0 mg L-1 in the presence of the humic substance (p< 0.01, p< 0.001 and p< 0.001, respectively). Although, the calculated EC50-7d growth for these exposures, with and without HA, was >100 mg L-1. This value attributes a practically non-toxicity for the test-material in terms of fronds production. On the other hand, the calculated EC50-7d biomass for the GO in the presence of HA or not was 2.8 and 2.4 mg L-1 respectively. These results indicate that the adverse effects of GO in L. minor are more pronounced on the biomass production since it was clearly observed that reductions in the fronds sizes were greater than in the fronds number. The EC50-7d biomass values assigns a moderate toxicity of GO to L. minor and these data may be useful for the establishment of maximum concentrations limits of this material in water bodies.
650 $aGraphene
650 $aMacrophytes
700 1 $aCLEMENTE, Z.
700 1 $aCASTRO, V. L. S. S. de
700 1 $aCASTANHA, R. F.
700 1 $aVALLIM, J. H.
700 1 $aDOMINGOS, N.
700 1 $aBLUMEL, S.
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