Data/hora: 06/06/2024 17:18:21

Biblioteca(s): | Embrapa Amazônia Ocidental; Embrapa Mandioca e Fruticultura.
Data corrente: | 14/06/2000
Data da última atualização: | 14/06/2000
Autoria: | GROSSMANN, K.; HAUSER, C.; SAUERBREY, E.; FRITSCH, H.; SCHMIDT, O.; JUNG, J.
Afiliação: | BASF Agricultural Research Center, Liburgerhof, Federal Republic of Germany.
Título: | Plant growth retardants as inhibitors of ethylene production.
Ano de publicação: | 1989
Fonte/Imprenta: | Journal Plant Physiol., v.134, p.538-543, 1989.
Idioma: | Inglês
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.
Palavras-Chave: | Inibidor; Retardador crescimento.
Thesagro: | Etileno; Planta; Produção.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)

Exemplares:

CNPMF - (18025-1) - ADD - SP - -- - S11851 -  - S11851 - DIS
CPAA - (35030-1) - ADD - SP - PP - S7383 -  - S7383 - DIS