Data/hora: 10/06/2024 04:38:09

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