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PERONOSPORA|sparsa":
5 articles found in Index.
JAMALI S. (2020): First report of Paraconiothyrium fuckelii (Didymosphaeriaceae, Pleosporales), causing stem canker of Rosa hybrida, from Iran. [Dothideomycetes, fungal disease, internal transcribed spacers, Iran mycobiota, pathogenicity.] Czech Mycology 72(1): 71-82 (published: 29th May, 2020)
abstract
In spring 2016, stem canker symptoms were observed on most Rosa hybrida plants in greenhouses of Kermanshah Province in Western Iran. Initial symptoms of the disease were brown necrotic lesions, mostly 8–10 mm long, on stems. The lesions eventually depressed and expanded to a long ellipse, resulting in yellowing and wilting of the foliage. Fungal colonies resembling those of Paraconiothyrium species were obtained from diseased tissues. Based on morphological and DNA sequence analysis of the internal transcribed spacers ITS1 and ITS2 and the 5.8S gene the fungal isolates were identified as Paraconiothyrium fuckelii. This is the first report of stem canker disease caused by this species in Iran. Pathogenicity tests were carried out on potted Rosa hybrida plants and detached branches under controlled conditions. Pathogenicity tests demonstrated that the fungus is able to infect and cause canker symptoms on inoculated branches of healthy plants after four weeks. The pathogen was re-isolated from all inoculated plants after observation of the symptoms, thus meeting Koch’s postulates.
Book review - Kenneth Horst R., Cloyd R.A.: Compendium of rose diseases and pests. 2nd edition. Czech Mycology 60(1): 122 (published: 4th July, 2008)
MÜLLER J., KOKEŠ P. (2008): Erweitertes Verzeichnis der Falschen Mehltaupilze Mährens und tschechisch Schlesiens. [Peronosporales, host plants, numbers of localities, herbaria specimens, Moravia, Czech Silesia (east Czech Republic)] Czech Mycology 60(1): 91-104 (published: 4th July, 2008)
abstract
The paper represents an extended version of the Checklist of downy mildews of Moravia and Silesia, into which rusts and smuts were included, as published in Czech Mycology 56: 121–148, 2004.The current checklist includes 176 species and 514 combinations of downy mildews and host plants.For each species of downy mildew its host plants are specified and for every host plant the number of localities on which the downy mildew was recorded, including the year of the latest record and abbreviations of the herbaria in which the specimens are deposited. This checklist was elaborated mostly according to data published in literature.
KOKEŠ P., MÜLLER J. (2004): Checklist of downy mildews, rusts and smuts of Moravia and Silesia. [plant-parasitic fungi, occurrence, regions of the Czech Republic, Peronosporales, Sclerosporales, Urediniomycetes, Ustilaginomycetes] Czech Mycology 56(1-2): 121-148 (published: 12th August, 2004)
abstract
This checklist includes 736 taxa of downy mildews, rusts and smuts reported from Moravia and Czech Silesia, Czech Republic. There are 114 species parasiting oncrops and other cultivated plants. The list includes the frequency of occurrence, i. e. commonness or rarity of individual taxa. The work is based on literature data.
HORÁKOVÁ J., SKALICKÝ V. (1989): Contribution to the ecology of Peronospora violacea Berk. Česká Mykologie 43(1): 13-29 (published: 6th February, 1989)
abstract
Peronospora violacea Berk. is an obligate floricolous Peronospora. All floricolous parasitic fungi of the family Peronosporaceae belong to the genus Peronospora Corda, probably to only one evolutional complex; of the foliicolous parasitic species, Peronospora destructor (Berk.) Casp. is their closest relative. It is impossible to distinguish individual microspecies within P. violacea Berk. on the basis of host plants; three new host species were found. The systemic infection of the Knautia species by both indirect and direct methods (replanting, histological proof of mycelium) was demonstrated. The data on oospores were corrected and completed. Basing on the revision of all materials preserved in the Czechoslovak public herbarium collections, a map of distribution of this species in Czechoslovakia was compiled and evaluated. A special chapter is devoted to the problems of nomenclature.
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