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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
30/06/1993 |
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Data da última atualização: |
19/03/2019 |
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Autoria: |
SANTORO, L. G.; MAGALHAES, A. C. N. |
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Afiliação: |
LUIZ GONZAGA SANTORO, UNICAMP; ANTONIO CELSO NOVAES MAGALHÃES, UNICAMP. |
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Título: |
Changes in nitrate reductase activity during development of soybean leaf. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Z. Pflazenphysiol. Bd., v.112, p.113-121, 1983. |
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Idioma: |
Inglês |
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Conteúdo: |
The in vivo and in vitro nitrate activities during the ontogeny of the first leaf showed maximum values at the time of maximum rate of leaf expansion. During this phase the changes of the enzyme activity depend on the level of endogenous nitrate in the tissues, which accumulated preferentialy in young leaves. It was shown that the in vitro nitrate reductase instability increases as leaf age progresses, Inclusion of 3% Casein in the enzyme extraction medium significantly improved enzyme activity suggesting that casein could effect the balance between some activating and inactivating component associated with protein molecule. When nitrate was supplied via the petioles of excised leaves it could be demonstrated that old leaves accumulated less nitrate than youngones. In addition it was shown that the nitrate concentration in the leaf the relation between in vivo and in vitro nitrate reductase activities. |
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Palavras-Chave: |
Activity; Atividade; Desenvolvimento; Development; Enzyme; Instabilidade; Instability; Leaf; Nitrate; Soybean. |
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Thesagro: |
Enzima; Fisiologia Vegetal; Folha; Nitrato; Reductase; Soja. |
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Thesaurus Nal: |
physiology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01758naa a2200337 a 4500
001 1010560
005 2019-03-19
008 1983 bl uuuu u00u1 u #d
100 1 $aSANTORO, L. G.
245 $aChanges in nitrate reductase activity during development of soybean leaf.$h[electronic resource]
260 $c1983
520 $aThe in vivo and in vitro nitrate activities during the ontogeny of the first leaf showed maximum values at the time of maximum rate of leaf expansion. During this phase the changes of the enzyme activity depend on the level of endogenous nitrate in the tissues, which accumulated preferentialy in young leaves. It was shown that the in vitro nitrate reductase instability increases as leaf age progresses, Inclusion of 3% Casein in the enzyme extraction medium significantly improved enzyme activity suggesting that casein could effect the balance between some activating and inactivating component associated with protein molecule. When nitrate was supplied via the petioles of excised leaves it could be demonstrated that old leaves accumulated less nitrate than youngones. In addition it was shown that the nitrate concentration in the leaf the relation between in vivo and in vitro nitrate reductase activities.
650 $aphysiology
650 $aEnzima
650 $aFisiologia Vegetal
650 $aFolha
650 $aNitrato
650 $aReductase
650 $aSoja
653 $aActivity
653 $aAtividade
653 $aDesenvolvimento
653 $aDevelopment
653 $aEnzyme
653 $aInstabilidade
653 $aInstability
653 $aLeaf
653 $aNitrate
653 $aSoybean
700 1 $aMAGALHAES, A. C. N.
773 $tZ. Pflazenphysiol. Bd.$gv.112, p.113-121, 1983.
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| 1. |  | SCOPEL, E.; FLANDIN, M. A.; XAVIER, J. H. V.; CORBEELS, M.; SILVA, F. A. M. da; AFFHOLDER, F.; ANGEVIN, F.; DE TOURDONNET, S.; DAVID, C. Multicriteria evaluation of direct seeding mulch based cropping systems (DMC) in the context of small scale farmers in the cerrado region of Brazil. In: CONGRESS OF THE EUROPEAN SOCIETY FOR AGRONOMY, 11., 2010, Montpellier. Proceedings of Agro 2010. Montpellier: Agropolis International, 2010. p. 413-414. ESA.| Tipo: Artigo em Anais de Congresso |
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