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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Mandioca e Fruticultura. |
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Data corrente: |
14/06/2000 |
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Data da última atualização: |
14/06/2000 |
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Autoria: |
GROSSMANN, K.; HAUSER, C.; SAUERBREY, E.; FRITSCH, H.; SCHMIDT, O.; JUNG, J. |
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Afiliação: |
BASF Agricultural Research Center, Liburgerhof, Federal Republic of Germany. |
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Título: |
Plant growth retardants as inhibitors of ethylene production. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Journal Plant Physiol., v.134, p.538-543, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Plant growth retardants of norbornanodiazetine (tetcyclacis) and triazole (BAS 111 W) types inhibited ethylene production in leaf discs of barley and oilseed rape. The maximal reduction of 70% was reached 5 h after treatment. The addition of gibberellic acid could not overcome the effects. At concentrations of the retardants up to 3x10 -4 molx1 -1 the reduction in ethylene formation was accompanied by increased or nearly constant levels of 1-aminocyclopropane-1-carboxilic acid (ACC) and N-malonyl-ACC in the leaf discs. This suggests an inhibition of the conversion of ACC to ethylene in the biosynthetic pathway. As explanations a direct influence on the ethylene-forming enzyme or an indirect effect via a retardant-caused modification in the cellular membrane properties are discussed. |
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Palavras-Chave: |
Inibidor; Retardador crescimento. |
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Thesagro: |
Etileno; Planta; Produção. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01401naa a2200241 a 4500
001 1648992
005 2000-06-14
008 1989 bl --- 0-- u #d
100 1 $aGROSSMANN, K.
245 $aPlant growth retardants as inhibitors of ethylene production.
260 $c1989
520 $aPlant growth retardants of norbornanodiazetine (tetcyclacis) and triazole (BAS 111 W) types inhibited ethylene production in leaf discs of barley and oilseed rape. The maximal reduction of 70% was reached 5 h after treatment. The addition of gibberellic acid could not overcome the effects. At concentrations of the retardants up to 3x10 -4 molx1 -1 the reduction in ethylene formation was accompanied by increased or nearly constant levels of 1-aminocyclopropane-1-carboxilic acid (ACC) and N-malonyl-ACC in the leaf discs. This suggests an inhibition of the conversion of ACC to ethylene in the biosynthetic pathway. As explanations a direct influence on the ethylene-forming enzyme or an indirect effect via a retardant-caused modification in the cellular membrane properties are discussed.
650 $aEtileno
650 $aPlanta
650 $aProdução
653 $aInibidor
653 $aRetardador crescimento
700 1 $aHAUSER, C.
700 1 $aSAUERBREY, E.
700 1 $aFRITSCH, H.
700 1 $aSCHMIDT, O.
700 1 $aJUNG, J.
773 $tJournal Plant Physiol.$gv.134, p.538-543, 1989.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
