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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/01/2016 |
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Data da última atualização: |
28/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, L. M. de; GRESS, J.; DE, J.; RATHINASABAPATHI, B.; MARCHI, G.; CHEN, Y.; MA, L. Q. |
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Afiliação: |
LETÚZIA M. DE OLIVEIRA, NANJING UNIVERSITY, CHINA; JULIA GRESS, UNIVERSITY OF FLORIDA, USA; JAYSANKAR DE, UNIVERSITY OF FLORIDA, USA; BALA RATHINASABAPATHI, UNIVERSITY OF FLORIDA, USA; GIULIANO MARCHI, CPAC; YANSHAN CHEN, NANJING UNIVERSITY, CHINA; LENA Q. MA, NANJING UNIVERSITY, CHINA. |
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Título: |
Sulfate and chromate increased each other's uptake and translocation in As-hyperaccumulator Pteris vittata. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Chemosphere, Oxford, n. 147, p. 36-43, March 2016. |
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ISSN: |
0045-6535 |
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DOI: |
http://dx.doi.org/10.1016/j.chemosphere.2015.12.088 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: We investigated the effects of chromate (CrVI) and sulfate on their uptake and translocation in Ashyperaccumulator Pteris vittata. Plants were exposed to 1) 0.1 mM CrVI and 0, 0.25, 1.25 or 2.5 mM sulfate or 2) 0.25 mM sulfate and 0, 0.5, 2.5 or 5.0 mM CrVI for 1 d in hydroponics. P. vittata accumulated 26 and 1261 mg kg1 Cr in the fronds and roots at CrVI0.1, and 2197 and 1589 mg kg1 S in the fronds and roots at S0.25. Increasing sulfate concentrations increased Cr root concentrations by 16e66% and helped CrVI reduction to CrIII whereas increasing CrVI concentrations increased frond sulfate concentrations by 3e27%. Increasing sulfate concentrations enhanced TBARS concentrations in the biomass, indicating oxidative stress caused lipid peroxidation in plant cell membranes. However, addition of 0.25e2.5 mM sulfate alleviated CrVI's toxic effects and decreased TBARS from 23.5 to 9.46e12.3 mmol g1 FW. Though CrVI was supplied, 78e96% of CrIII was in the biomass, indicating efficient CrVI reduction to CrIII by P. vittata. The data indicated the amazing ability of P. vittata in Cr uptake at 289 mg kg1 h1 with little translocation to the fronds. These results indicated that P. vittata had potential in Cr phytoremediation in contaminated sites but further studies are needed to evaluate this potential. The facts that CrVI and sulfate helped each other in uptake by P. vittata suggest that CrVI was not competing with sulfate uptake in P. vittata. However, the mechanisms of how sulfate and CrVI enhance each other's accumulation in P. vittata need further investigation. MenosAbstract: We investigated the effects of chromate (CrVI) and sulfate on their uptake and translocation in Ashyperaccumulator Pteris vittata. Plants were exposed to 1) 0.1 mM CrVI and 0, 0.25, 1.25 or 2.5 mM sulfate or 2) 0.25 mM sulfate and 0, 0.5, 2.5 or 5.0 mM CrVI for 1 d in hydroponics. P. vittata accumulated 26 and 1261 mg kg1 Cr in the fronds and roots at CrVI0.1, and 2197 and 1589 mg kg1 S in the fronds and roots at S0.25. Increasing sulfate concentrations increased Cr root concentrations by 16e66% and helped CrVI reduction to CrIII whereas increasing CrVI concentrations increased frond sulfate concentrations by 3e27%. Increasing sulfate concentrations enhanced TBARS concentrations in the biomass, indicating oxidative stress caused lipid peroxidation in plant cell membranes. However, addition of 0.25e2.5 mM sulfate alleviated CrVI's toxic effects and decreased TBARS from 23.5 to 9.46e12.3 mmol g1 FW. Though CrVI was supplied, 78e96% of CrIII was in the biomass, indicating efficient CrVI reduction to CrIII by P. vittata. The data indicated the amazing ability of P. vittata in Cr uptake at 289 mg kg1 h1 with little translocation to the fronds. These results indicated that P. vittata had potential in Cr phytoremediation in contaminated sites but further studies are needed to evaluate this potential. The facts that CrVI and sulfate helped each other in uptake by P. vittata suggest that CrVI was not competing with sulfate uptake in P. vittata. However, the mechanisms of ho... Mostrar Tudo |
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Palavras-Chave: |
Captação; Especiação; Sulfate. |
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Thesagro: |
Cromo; Sulfato; Translocação. |
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Thesaurus Nal: |
Chemical speciation; Chromium; Pteris vittata; Translocation (plant physiology); Uptake mechanisms. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137945/1/S2065.pdf
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Marc: |
LEADER 02574naa a2200349 a 4500
001 2035414
005 2016-01-28
008 2016 bl uuuu u00u1 u #d
022 $a0045-6535
024 7 $ahttp://dx.doi.org/10.1016/j.chemosphere.2015.12.088$2DOI
100 1 $aOLIVEIRA, L. M. de
245 $aSulfate and chromate increased each other's uptake and translocation in As-hyperaccumulator Pteris vittata.
260 $c2016
520 $aAbstract: We investigated the effects of chromate (CrVI) and sulfate on their uptake and translocation in Ashyperaccumulator Pteris vittata. Plants were exposed to 1) 0.1 mM CrVI and 0, 0.25, 1.25 or 2.5 mM sulfate or 2) 0.25 mM sulfate and 0, 0.5, 2.5 or 5.0 mM CrVI for 1 d in hydroponics. P. vittata accumulated 26 and 1261 mg kg1 Cr in the fronds and roots at CrVI0.1, and 2197 and 1589 mg kg1 S in the fronds and roots at S0.25. Increasing sulfate concentrations increased Cr root concentrations by 16e66% and helped CrVI reduction to CrIII whereas increasing CrVI concentrations increased frond sulfate concentrations by 3e27%. Increasing sulfate concentrations enhanced TBARS concentrations in the biomass, indicating oxidative stress caused lipid peroxidation in plant cell membranes. However, addition of 0.25e2.5 mM sulfate alleviated CrVI's toxic effects and decreased TBARS from 23.5 to 9.46e12.3 mmol g1 FW. Though CrVI was supplied, 78e96% of CrIII was in the biomass, indicating efficient CrVI reduction to CrIII by P. vittata. The data indicated the amazing ability of P. vittata in Cr uptake at 289 mg kg1 h1 with little translocation to the fronds. These results indicated that P. vittata had potential in Cr phytoremediation in contaminated sites but further studies are needed to evaluate this potential. The facts that CrVI and sulfate helped each other in uptake by P. vittata suggest that CrVI was not competing with sulfate uptake in P. vittata. However, the mechanisms of how sulfate and CrVI enhance each other's accumulation in P. vittata need further investigation.
650 $aChemical speciation
650 $aChromium
650 $aPteris vittata
650 $aTranslocation (plant physiology)
650 $aUptake mechanisms
650 $aCromo
650 $aSulfato
650 $aTranslocação
653 $aCaptação
653 $aEspeciação
653 $aSulfate
700 1 $aGRESS, J.
700 1 $aDE, J.
700 1 $aRATHINASABAPATHI, B.
700 1 $aMARCHI, G.
700 1 $aCHEN, Y.
700 1 $aMA, L. Q.
773 $tChemosphere, Oxford$gn. 147, p. 36-43, March 2016.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
24/09/2001 |
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Data da última atualização: |
18/01/2010 |
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Autoria: |
SOUZA, F. A. de; BERBARA, R. L. L.; REIS, V. M. |
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Título: |
Estudos básicos sobre colonização e esporulação de fungos micorrízicos arbusculares (FMA) em raízes transgênicas relacionados com outros organismos e desenvolvimento de técnicas imunológicas. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Seropédica: EMBRAPA-CNPAB, 1998. |
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Páginas: |
20 p. |
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Série: |
(EMBRAPA-CNPAB. Documentos, 63). |
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ISSN: |
0104-6187 |
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Idioma: |
Português |
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Conteúdo: |
Fungos micorrízicos empregados no projeto, que tiveram suas culturas renovadas. Material e métodos. Desenvolvimento do trabalho. Determinações do crescimento das raízes. Determinação do peso fresco total das raízes. Extração alcoólica no material fresco. Determinação de N-Amino. Determinação de açucares solúveis. Determinação colorimétrica de nitrato. Determinação de amônio. Análises das enzimas. Atividade da nitrato redutase - NRA. Atividade da glutamina síntetase-GS Atividade das protease. Medida da qualidade de proteína. |
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Thesagro: |
Colonização; Enzima; Micorriza; Micorriza Vesicular Arbuscular; Proteína; Raiz. |
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Thesaurus NAL: |
mycorrhizae. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAB-2010/27258/1/doc063.pdf
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Marc: |
LEADER 01353nam a2200253 a 4500
001 1624267
005 2010-01-18
008 1998 bl uuuu u0uu1 u #d
022 $a0104-6187
100 1 $aSOUZA, F. A. de
245 $aEstudos básicos sobre colonização e esporulação de fungos micorrízicos arbusculares (FMA) em raízes transgênicas relacionados com outros organismos e desenvolvimento de técnicas imunológicas.
260 $aSeropédica: EMBRAPA-CNPAB$c1998
300 $a20 p.
490 $a(EMBRAPA-CNPAB. Documentos, 63).
520 $aFungos micorrízicos empregados no projeto, que tiveram suas culturas renovadas. Material e métodos. Desenvolvimento do trabalho. Determinações do crescimento das raízes. Determinação do peso fresco total das raízes. Extração alcoólica no material fresco. Determinação de N-Amino. Determinação de açucares solúveis. Determinação colorimétrica de nitrato. Determinação de amônio. Análises das enzimas. Atividade da nitrato redutase - NRA. Atividade da glutamina síntetase-GS Atividade das protease. Medida da qualidade de proteína.
650 $amycorrhizae
650 $aColonização
650 $aEnzima
650 $aMicorriza
650 $aMicorriza Vesicular Arbuscular
650 $aProteína
650 $aRaiz
700 1 $aBERBARA, R. L. L.
700 1 $aREIS, V. M.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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