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| Registros recuperados : 493 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
12/07/2002 |
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Data da última atualização: |
12/07/2002 |
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Autoria: |
ANDRADE, L. R. M. de; IKEDA, M.; ISHIZUKA, J. |
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Título: |
Excretion and metabolism of malic acid produced by dark carbon fixation in roots in relation to aluminium tolerance of wheat. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Plant nutrition: for sustainable food production and environment. Japao: Kluwer Academic, 1997. p. 445-446. |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of aluminium (Al) on the metabolism of malate synthesized via dark carbon fixation was investigated in Al-tolerant Shirosanjyaku (SH) and Al sensitive Chikushikomugi (CK) wheat (Triticum aestivum L.) roots labeled with bicarbonate- 14C. Al (100 µ M) triggered the excretion of 14C to the bathing solution, especially in
SH. Al decreased the malate concentrations in roots of both cultivares, and CK roots always had higher concentrations, regardless of Al treatment. Al elicited the excretion of malate to the solution by roots of both cultivars, but it was more preonounced in SH. Differential Al tolerance between SH and CK seems to be due to the higler ability of SH to excrete malic acid to the brhizosphere, independent of its concentration in the roots.
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Palavras-Chave: |
Organicas acids; Tolerancia. |
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Thesagro: |
Ácido Orgânico; Alumínio; Cerrado. |
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Thesaurus NAL: |
wheat. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01455naa a2200217 a 4500
001 1557629
005 2002-07-12
008 1997 bl --- 0-- u #d
100 1 $aANDRADE, L. R. M. de
245 $aExcretion and metabolism of malic acid produced by dark carbon fixation in roots in relation to aluminium tolerance of wheat.
260 $c1997
520 $aThe effect of aluminium (Al) on the metabolism of malate synthesized via dark carbon fixation was investigated in Al-tolerant Shirosanjyaku (SH) and Al sensitive Chikushikomugi (CK) wheat (Triticum aestivum L.) roots labeled with bicarbonate- 14C. Al (100 µ M) triggered the excretion of 14C to the bathing solution, especially in SH. Al decreased the malate concentrations in roots of both cultivares, and CK roots always had higher concentrations, regardless of Al treatment. Al elicited the excretion of malate to the solution by roots of both cultivars, but it was more preonounced in SH. Differential Al tolerance between SH and CK seems to be due to the higler ability of SH to excrete malic acid to the brhizosphere, independent of its concentration in the roots.
650 $awheat
650 $aÁcido Orgânico
650 $aAlumínio
650 $aCerrado
653 $aOrganicas acids
653 $aTolerancia
700 1 $aIKEDA, M.
700 1 $aISHIZUKA, J.
773 $tPlant nutrition: for sustainable food production and environment. Japao: Kluwer Academic, 1997. p. 445-446.
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