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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
31/10/2011 |
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Data da última atualização: |
21/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NABAIS, C.; LABUTO, G.; GONÇALVES, S.; BUSCARDO, E.; SEMENSATTO, D.; NOGUEIRA, A. R. de A.; FREITAS, H. |
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Afiliação: |
CRISTINA NABAIS, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; GEÓRGIA LABUTO, UNIVERSIDADE FEDERAL DE SÃO PAULO/SÃO PAULO; SUSANA GONÇALVES, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; ERIKA BUSCARDO, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; DÉCIO SEMENSATTO, UNIVERSIDADE FEDERAL DE SÃO PAULO/SÃO PAULO; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; HELENA FREITAS, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL. |
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Título: |
Effect of root age on the allocation of metals, amino acids and sugars in different cell fractions of the perennial grass Paspalum notatum (bahiagrass). |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Plant Physiology and Biochemistry, v. 49, n. 12, p. 1442-1447, dec. 2011. |
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DOI: |
https://doi.org/10.1016/j.plaphy.2011.09.010 |
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Idioma: |
Inglês |
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Conteúdo: |
This work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in the composition of the cell wall components with ageing. To further understand the structural changes of root cells with ageing and its effect on metal allocation, it is important to quantify several components of the cell wall matrix, namely pectins and glycoproteins. MenosThis work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in t... Mostrar Tudo |
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Palavras-Chave: |
Aluminium. |
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Thesaurus Nal: |
copper; glycoproteins; iron; nickel; polysaccharides. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02641naa a2200277 a 4500
001 1904434
005 2022-07-21
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.plaphy.2011.09.010$2DOI
100 1 $aNABAIS, C.
245 $aEffect of root age on the allocation of metals, amino acids and sugars in different cell fractions of the perennial grass Paspalum notatum (bahiagrass).$h[electronic resource]
260 $c2011
520 $aThis work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in the composition of the cell wall components with ageing. To further understand the structural changes of root cells with ageing and its effect on metal allocation, it is important to quantify several components of the cell wall matrix, namely pectins and glycoproteins.
650 $acopper
650 $aglycoproteins
650 $airon
650 $anickel
650 $apolysaccharides
653 $aAluminium
700 1 $aLABUTO, G.
700 1 $aGONÇALVES, S.
700 1 $aBUSCARDO, E.
700 1 $aSEMENSATTO, D.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aFREITAS, H.
773 $tPlant Physiology and Biochemistry$gv. 49, n. 12, p. 1442-1447, dec. 2011.
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Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 55 | |
| 27. |  | ARAUJO, A. C. de; COIMBRA, H. M.; MOLLER, M. R. F.; SÁ, T. D. de A. Aspectos térmicos do solo em sistemas rotacionais de agricultura no nordeste do Pará. In: CONGRESSO BRASILEIRO DE INICIAÇÃO CIENTÍFICA EM CIÊNCIAS AGRÁRIAS, 16., 1996, Santa Maria, RS. Os desafios da iniciação científica para o desenvolvimento social, frente à globalização: resumos. Santa Maria: UFSM, 1997. p. 209.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 32. | | SÁ, T. D. de A.; MOLLER, M. R. F.; ARAUJO, A. C. de; FREIRE, G. S. Chuva sob dossel em capoeiras associadas a agricultura familiar do nordeste do Pará: súmario dos estudos do projeto SHIFT-Capoeira. In: SEMINÁRIO SOBRE MANEJO DA VEGETAÇÃO SECUNDÁRIA PARA A SUSTENTABILIDADE DA AGRICULTURA FAMILIAR DA EMBRAPA AMAZÔNIA ORIENTAL, 1999, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental: CNPq, 2000. p. 77-79. (Embrapa Amazônia Oriental. Documentos, 69).| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 35. | | MELO, V.; SÁ, T. D. de A.; MÖLLER, M. R. F. Contribuição da chuva escorrida pelo caule a chuva efetiva em floresta primária explorada, no nordeste do Pará. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistema: com enfoque no contexto de seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 303-304.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 36. | | MATOS, A. de O.; SILVEIRA, R. I.; MÖLLER, M. R. F.; CARVALHO, E. J. M. Exportação e acúmulo de micronutrientes em taxi (Sclerolobium paniculatum, Vogel) de diferentes idades, em Belterra, PA. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 26., 1997, Rio de Janeiro. Informação de solo na globalização do conhecimento sobre o uso das terras: resumos. Rio de Janeiro: SBCS, 1997. p. 261.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 37. | | MATOS, A. de; SILVEIRA, R. I.; MÖLLER, M. R. F.; CARVALHO, E. J. M. Export and acumulation of micronutrientes for sclerolobium paniculatum, Vogel-taxi-of different ages in Belterra, PA. In: CONGRESO DE LA SOCIEDAD CUBANA DE LA CIENCIA DEL SUELO Y REUNION INTERNACIONAL DE RHIZOSFERA, 4., 1997, Matanzas. Resumenes. Matanzas: Universidad de Matanzas Camilo Cienfuegos, 1997. p. 74.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 40. | | SÁ, T. D. de A.; MOLLER, M. R. F.; HOLSCHER, D.; SOMMER, R. Rainfall partitioning in natural and enriched secondary vegetation under fallow in eastern Amazonia: a quantitative overview. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GKSS, 2002. p. 311-312. Editado por Reinhard Lieberei, Helmut Bianchi, Vera Boehm, Christoph Reisdorff. Anexo 1 CD-ROM nº 0084, completo.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 55 | |
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