| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
18/02/2016 |
|
Data da última atualização: |
03/02/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
POLONINI, H. C.; BRANDAO, H. de M.; RAPOSO, N. R. B.; BRANDÃO, M. A. F.; MOUTON, L.; COUTÉ, A.; YÉPRÉMIAN, C.; SIVRY, Y.; BRAYNER, R. |
|
Afiliação: |
Hudson C. Polonini, UFJF; HUMBERTO DE MELLO BRANDAO, CNPGL; Nadia R. B. Raposo, UFJF; Marcos Antonio F. Brandao, UFJF; Ludovic Mouton, Univesité Paris Diderot, France; Alain Coute, Muséum Nation d´Histoire Naturelle, France; Claude Yepremian, Muséum National d´Histoire Naturelle, France; Yann Sivry, Université Paris Diderot, France; Roberta Brayner, Université Paris Diderot, France. |
|
Título: |
Size-dependent ecotoxicity of barium titanate particles: the case of Chlorella vulgaris green algae. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Ecotoxicology, v. 24, p. 938-948, 2015. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Studies have been demonstrating that smaller particles can lead to unexpected and diverse ecotoxicological effects when compared to those caused by the bulk material. In this study, the chemical composition, size and shape, state of dispersion, and surface's charge, area and physicochemistry of micro (BT MP) and nano barium titanate (BT NP) were determined. Green algae Chlorella vulgaris grown in Bold's Basal (BB) medium or Seine River water (SRW) was used as biological indicator to assess their aquatic toxicology. Responses such as growth inhibition, cell viability, superoxide dismutase (SOD) activity, adenosine-5-triphosphate (ATP) content and photosynthetic activity were evaluated. Tetragonal BT (~170 nm, 3.24 m(2) g(-1) surface area) and cubic BT (~60 nm, 16.60 m(2) g(-1)) particles were negative, poorly dispersed, and readily aggregated. BT has a statistically significant effect on C. vulgaris growth since the lower concentration tested (1 ppm), what seems to be mediated by induced oxidative stress caused by the particles (increased SOD activity and decreased photosynthetic efficiency and intracellular ATP content). The toxic effects were more pronounced when the algae was grown in SRW. Size does not seem to be an issue influencing the toxicity in BT particles toxicity since micro- and nano-particles produced significant effects on algae growth. |
|
Palavras-Chave: |
Characterization; Seine river water. |
|
Thesaurus Nal: |
barium titanate; ecotoxicology; nanotechnology. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139385/1/Cnpgl-2015-Ecotoxicology-Size-dependent.pdf
|
|
Marc: |
LEADER 02162naa a2200277 a 4500
001 2037622
005 2024-02-03
008 2015 bl uuuu u00u1 u #d
100 1 $aPOLONINI, H. C.
245 $aSize-dependent ecotoxicity of barium titanate particles$bthe case of Chlorella vulgaris green algae.$h[electronic resource]
260 $c2015
520 $aStudies have been demonstrating that smaller particles can lead to unexpected and diverse ecotoxicological effects when compared to those caused by the bulk material. In this study, the chemical composition, size and shape, state of dispersion, and surface's charge, area and physicochemistry of micro (BT MP) and nano barium titanate (BT NP) were determined. Green algae Chlorella vulgaris grown in Bold's Basal (BB) medium or Seine River water (SRW) was used as biological indicator to assess their aquatic toxicology. Responses such as growth inhibition, cell viability, superoxide dismutase (SOD) activity, adenosine-5-triphosphate (ATP) content and photosynthetic activity were evaluated. Tetragonal BT (~170 nm, 3.24 m(2) g(-1) surface area) and cubic BT (~60 nm, 16.60 m(2) g(-1)) particles were negative, poorly dispersed, and readily aggregated. BT has a statistically significant effect on C. vulgaris growth since the lower concentration tested (1 ppm), what seems to be mediated by induced oxidative stress caused by the particles (increased SOD activity and decreased photosynthetic efficiency and intracellular ATP content). The toxic effects were more pronounced when the algae was grown in SRW. Size does not seem to be an issue influencing the toxicity in BT particles toxicity since micro- and nano-particles produced significant effects on algae growth.
650 $abarium titanate
650 $aecotoxicology
650 $ananotechnology
653 $aCharacterization
653 $aSeine river water
700 1 $aBRANDAO, H. de M.
700 1 $aRAPOSO, N. R. B.
700 1 $aBRANDÃO, M. A. F.
700 1 $aMOUTON, L.
700 1 $aCOUTÉ, A.
700 1 $aYÉPRÉMIAN, C.
700 1 $aSIVRY, Y.
700 1 $aBRAYNER, R.
773 $tEcotoxicology$gv. 24, p. 938-948, 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Semiárido. |
|
Data corrente: |
28/11/2019 |
|
Data da última atualização: |
05/10/2023 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
SILVA, D. M. da; GAMA, F. de C.; SILVA, U. T. F. da; NASCIMENTO, A. S.; PARANHOS, B. A. J. |
|
Afiliação: |
DHENIFÉ MIRELLY DA SILVA; FARAH DE CASTRO GAMA, CPATSA; UILCA THAMARA FERREIRA DA SILVA; ANTONIO SOUZA NASCIMENTO; BEATRIZ AGUIAR GIORDANO PARANHOS, CPATSA. |
|
Título: |
Uso de ovos de Ceratitis capitata (Diptera: Tephritidae), como alimento alternativo na criação do predador Cryptolaemus montrouzieri (Coleoptera: Coccinelidae). |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 26., 2019, Juazeiro, BA/Petrolina, PE. Fruticultura de precisão: desafios e oportunidades - anais. Petrolina: Embrapa Semiárido: UNIVASF: SBF, 2019. |
|
Páginas: |
p. 2036-2039. |
|
Idioma: |
Português |
|
Conteúdo: |
Este trabalho teve como objetivo avaliar o consumo de ovos de C. capitata em sua alimentação, comparando-se com o de sua presa natural, ninfas de M. hirsutus. |
|
Palavras-Chave: |
Agentes biológicos. |
|
Thesagro: |
Ceratitis Capitata; Controle Biológico; Inseto; Joaninha; Mosca das Frutas; Ovo; Praga. |
|
Thesaurus NAL: |
Biological control; Cryptolaemus montrouzieri; Fruit flies. |
|
Categoria do assunto: |
--
O Insetos e Entomologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205762/1/Uso-de-ovos-de-Ceratitis-capitata.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206464/1/USO-DE-OVOS-DE-Ceratitis-capitata-DIPTERA-TEPHRITIDAE-COMO-ALIMENTO.pdf
|
|
Marc: |
LEADER 01241nam a2200301 a 4500
001 2115410
005 2023-10-05
008 2019 bl uuuu u00u1 u #d
100 1 $aSILVA, D. M. da
245 $aUso de ovos de Ceratitis capitata (Diptera$bTephritidae), como alimento alternativo na criação do predador Cryptolaemus montrouzieri (Coleoptera: Coccinelidae).$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE FRUTICULTURA, 26., 2019, Juazeiro, BA/Petrolina, PE. Fruticultura de precisão: desafios e oportunidades - anais. Petrolina: Embrapa Semiárido: UNIVASF: SBF$c2019
300 $ap. 2036-2039.
520 $aEste trabalho teve como objetivo avaliar o consumo de ovos de C. capitata em sua alimentação, comparando-se com o de sua presa natural, ninfas de M. hirsutus.
650 $aBiological control
650 $aCryptolaemus montrouzieri
650 $aFruit flies
650 $aCeratitis Capitata
650 $aControle Biológico
650 $aInseto
650 $aJoaninha
650 $aMosca das Frutas
650 $aOvo
650 $aPraga
653 $aAgentes biológicos
700 1 $aGAMA, F. de C.
700 1 $aSILVA, U. T. F. da
700 1 $aNASCIMENTO, A. S.
700 1 $aPARANHOS, B. A. J.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
