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	Provedor de dados Trop. Plant Pathol. (1) Horticultura Brasileira (1) Autor Boiteux,Leonardo S. (2) Lopes,Carlos A. (2) Paz-Lima,Milton L. (2) Reis,Ailton (2) Silva,Patrícia P. (2) Palavra-chave Etiology (2) Leveillula taurica (2) A. porrum (1) A. sativum (1) Allium cepa (1) N. rustica (1) Nicotiana tabacum (1) Powdery mildew (1) S. chacoense (1) S. melongena (1) S. tuberosum (1) Solanum gilo (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Powdery mildew of Allium species caused by Oidiopsis taurica in Brazil Horticultura Brasileira Reis,Ailton; Boiteux,Leonardo S.; Paz-Lima,Milton L.; Silva,Patrícia P.; Lopes,Carlos A.. Oidiopsis taurica Salmon (Syn. Oidiopsis sicula Scalia) was identified as the causal agent of a powdery mildew disease occurring on distinct Allium species in Brazil. This disease was initially observed in plastic house and field-grown garlic (Allium sativum) and leek (A. porrum) accessions in Brasília (Federal District) and in field-grown and greenhouse onion (A. cepa) cultivars in Belém do São Francisco (Pernambuco State) and Brasília, respectively. Typical symptoms consisted of chlorotic areas on the leaf surface corresponding to a fungal colony. These lesions turned to a brownish color with the progress of the disease. Fungi morphology was similar to that described for O. taurica. Endophytic mycelium emerging through estomata, light pale conidia were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leveillula taurica; Allium cepa; A. porrum; A. sativum; Etiology. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362004000400018 New hosts of Oidiopsis haplophylli in the solanaceae family in Brazil Trop. Plant Pathol. Reis,Ailton; Boiteux,Leonardo S.; Paz-Lima,Milton L.; Silva,Patrícia P.; Lopes,Carlos A.. A powdery mildew disease was observed on leaves of Solanum gilo, S. melongena, S. tuberosum S. chacoense, Nicotiana rustica and N. tabacum in Brasília (Federal District), Brazil. Symptoms were mainly characterized by adaxial yellow areas in the leaves corresponding to white fungal colonies on the abaxial surface. Profuse sporulation was often observed. Light microscopy of the fungal colonies revealed the presence of conidiophores emerging through stomata with some having two or three branches. Ellipsoidal, subhyaline conidia were predominantly born singly and terminally on the conidiophore. All morphometrical characteristics agreed with those of Oidiopsis haplophylli (Syn. O. sicula). The teleomorph (Leveillula taurica) was not observed. Inoculation tests... Tipo: Info:eu-repo/semantics/article Palavras-chave: Etiology; Solanum gilo; S. melongena; S. tuberosum; S. chacoense; Nicotiana tabacum; N. rustica; Powdery mildew; Leveillula taurica. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000200017 Registros recuperados: 2 Primeira ... 1 ... Última

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