Data/hora: 02/06/2024 09:32:59

Provedor de dados: 	Tropical Plant Pathology: fitopatologia brasileira	
País: 	Brazil	
Título: 	Hentriacontane: a leaf hydrocarbon from Syzygium jambos with stimulatory effects on the germination of urediniospores of Puccinia psidii	
Autores: 	TESSMANN,DAURI J.; DIANESE,JOSÉ C.	
Data: 	2002-09-01	
Ano: 	2002	
Palavras-chave: 	Germination; Myrtaceae; Rust; Urediniospores; Fungal spore germination.	
Resumo: 	A crude Sohxlet extract from leaves of Syzygium jambos was sequentially fractionated using a silica gel flash column. A bioassay based on the numbers of urediniospores of Puccinia psidii that germinated in 2% water agar detected an active stimulant of germination when the fraction eluted with 100% n-hexane was used. The active fraction induced up to 88% increase in germination when added to a spore suspension in mineral oil. The active fraction was characterized as a hydrocarbon by ¹H nuclear magnetic resonance, 13C nuclear magnetic resonance, and infrared analysis. Gas chromatography-mass spectrometry analysis indicated that the fraction was a long-chain 436 MW hydrocarbon with corresponding to C31H64, namely hentriacontane. This is the first time such a compound proved to be involved with stimulation of fungal spore germination. These results may contribute to better understanding the infection process of rusts.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000500017	
Editor: 	Sociedade Brasileira de Fitopatologia	
Relação: 	10.1590/S0100-41582002000500017	
Formato: 	text/html	
Fonte: 	Fitopatologia Brasileira  v.27 n.5 2002	
Fonte: 	info:eu-repo/semantics/openAccess