Data/hora: 22/06/2024 03:25:07

Biblioteca(s): 	Embrapa Agricultura Digital.	
Data corrente: 	21/07/2009	
Data da última atualização: 	11/11/2010	
Autoria: 	LIBERATO, J. R.; BARRETO, R. W.	
Afiliação: 	JOSÉ RICARDO LIBERATO, UFV; ROBERT WEINGART BARRETO, UFV.	
Título: 	Powdery mildew of Ruta graveolens in Brazil caused by Oidiopsis haplophylli.	
Ano de publicação: 	2006	
Fonte/Imprenta: 	Summa Phytopatologica, Botucatu, v. 32, n. 1, p. 80-81, Jan./Mar. 2006.	
Idioma: 	Inglês	
Notas: 	Nota científica.	
Conteúdo: 	Oidiopsis haplophylli is described causing powdery mildew on Ruta graveolens for the first time in Brazil (Viçosa, MG). The fungus causes yellowing of infected leaves accompanied by the presence of a whitish mycelial colony abaxially. The following combination of characters typical of this species was observed on the specimens collected in Viçosa: mycelium hypophyllous, hemiendophytic (partly external and partly internal), entering the leaves through the stomata; conidiophores hypophyllous, produced from the internal mycelium emerging through the stomata, cylindrical, hyaline, smooth; conidia, isolate, dimorphic - primary conidia lanceolate, 66.5-91.5 x 11.0-20.0 mm l/w ratio 3.5-6.2, secondary conidia cylindrical with rounded ends, 57.0-81.5 x 13.5-20.0 mm, l/w ratio 3.1 - 5.3, aseptate, hyaline, smooth.	
Palavras-Chave: 	Oídio de Ruta graveolens; Oidiopsis haplophylli; Phyllactinioideae.	
Thesagro: 	Arruda.	
Thesaurus Nal: 	Erysiphaceae; Leveillula taurica.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Agricultura Digital (CNPTIA)	
Exemplares: 	CNPTIA - (13499-1) - ADD - AP - PP -  -  -  - DIS