Data/hora: 29/05/2024 11:54:55

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