Sphenospora Kevorkianii, a rust fungus (Uredinales: Raveneliaceae) on the orchid Pleurothallis mentigera

Pereira, Olinto Liparini; Cavallazzi, José Renato Pereira; Rollemberg, Christtianno L.; Kasuya, Maria Catarina Megumi

doi:10.1590/s1517-83822002000200011

Cited by 6 publications

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“…Sphenospora kevorkianii was first described by Linder (1994) on Epidendrum difforme from Nicaragua. It has been reported in Brazil on Stanhopea graveolens and other orchid species, such as Pleurothallis mentigera (Pereira et al ., 2002), Catasetum fimbriatum (Pereira & Barreto, 2004) and C. maranhense (Soares da Silva & Barreto, 2006). These findings show that Sphenospora kevorkianii has a wide host range.…”

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confidence: 99%

Sphenospora kevorkianii on the orchids Epidendrum paniculatum and Stanhopea graveolens newly reported in Argentina

Cúndom

Galdeano²,

Tarrago

et al. 2009

Plant Pathology

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Small pieces of diseased tissue were surface sterilized with 0·5% NaOCl, plated on 2% potato dextrose agar (PDA) at pH 6, and incubated at 22 to 24 ° C. Dense, whitish mycelium developed within 72-96 h. Microconidia were abundant, globose to piriform, 0-1 septate, 4 -10 × 4·5-7 μ m, and formed on unbranched and branched monophialides. Cultures produced a fruity aroma similar to amyl acetate. Spores from 14-day-old colonies that developed on PDA were removed with 4 mL of sterile water. The pathogenicity of the fungus was tested by spraying five healthy inflorescences of tomato with a 5-mL suspension (2 × 10 5 conidia mL -1 of sterile distilled water). Another five healthy inflorescences were sprayed with sterile distilled water. The plants were placed in a growth chamber with a 12-h photoperiod at 22 ± 2 ° C and covered with polyethylene bags that were removed after 3 days when plants were moved to a glasshouse. While control flowers were healthy, all inoculated flowers showed symptoms similar to those observed previously.

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Sphenospora kevorkianii on the orchids Epidendrum paniculatum and Stanhopea graveolens newly reported in Argentina

Cúndom

Galdeano²,

Tarrago

et al. 2009

Plant Pathology

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“…In Brazil, S . kevorkianii has been reported on Cyrtopodium punctatum , Notylia lyrata , Prescottia sclerophylla , Stanhopea graveolens , Zygostates lunata (Hennen et al ., 1982) and Pleurothallis mentigera (Pereira et al ., 2002).…”

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confidence: 99%

First report of Sphenospora kevorkianii (Raveneliaceae) on the orchid Catasetum fimbriatum in Brazil

Pereira

Barreto

2004

Plant Pathology

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Diseases of Orchid

Smitamana¹,

McGovern²

2016

Handbook of Plant Disease Management

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Sphenospora Kevorkianii, a rust fungus (Uredinales: Raveneliaceae) on the orchid Pleurothallis mentigera

Abstract: A rust disease on the Brazilian orchid Pleurothallis mentigera was found in Mata do Jambreiro, a tropical forest in Minas Gerais State, caused by a fungus identified as Sphenospora kevorkianii Linder is described. P. mentigera Kraenzl. is added to S. kevorkianii host range.

Cited by 6 publications

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Sphenospora kevorkianii on the orchids Epidendrum paniculatum and Stanhopea graveolens newly reported in Argentina

Sphenospora kevorkianii on the orchids Epidendrum paniculatum and Stanhopea graveolens newly reported in Argentina

First report of Sphenospora kevorkianii (Raveneliaceae) on the orchid Catasetum fimbriatum in Brazil

Diseases of Orchid

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