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Search for "PUCCINIA|perplexans": 10 articles found in Index.

DIETRICH W. (2005): Die Rost-, Brand- und Falschen Mehltaupilze des tschechischen Teiles des Erzgebirges (Krušné hory): erster Nachtrag.   [Peronosporales, Urediniomycetes, Ustilaginomycetes, Czech Republic, Krušné hory]  Czech Mycology 57(3-4): 257-273   (published: 10th February, 2006)
  abstract   In the years 2000-2004 several species of Urediniomycetes, Ustilaginomycetes and Peronosporales were found that are new to the Czech part of the Krušné hory Mts. A total of 57 taxa had not been pub­lished before. In this region 227species, subspecies and varieties are known to date. The distribution of selected species is shortly discussed and compared with the literature. Characteristic species of the more arid and warmer area of the south-east as well as the highest altitudes of the Krušné hory Mts. are enumerated. New hosts in the Czech Republic are the following: Calthapalustris subsp.procumbens for Puccinia calthae, Chaerophyllumhirsutum for Puccinia bistortae, Pinus x pseudopumilio for Coleosporium senecionis, Poa chaixii for Puccinia graminis and Phyteuma nigrum for Uromyces phyteumatum. The western and eastern parts of the Krušné hory Mts. have so far been investigated only to a minor extent.

ONDRÁČKOVÁ J., URBAN Z. (1972): Infection experiments with Puccinia perplexans Plow. var. triticina (Eriks.) Urban f. sp. persistens in Bohemia.  Česká Mykologie 26(1): 9-22   (published: 1972)
  abstract   The life cycle of the brown rust of Couch grass from 3 Bohemian localities was studied. It was stated that there are at least 2 different physiologic races of the rust. One of them parasitizing Agropyrum × apiculatum in the mountains České středohoří is obligatorily heteroecious alternating with Thalictrum minus. In this respect it differs from 2 other collections on Agropyrum repens (originating from Central and South Bohemia) in which host alternation does not take place. Moreover, last mentioned races differ in their pathogenicity from the obligatorily heteroecious rust. For all urediniospore collections infection type on 33 grass species, 26 wheat varieties, 20 rye varieties, 1 barley variety and 4 wheat-couch grass hybrids and 2 wheat-rye hybrids was stated. Some species of Bromus and Couch grass were compatible. Wheats and their hybrids showed necrotic spots only. A part of rye plants inoculated produced uredinia of the susceptible type of infection.

URBAN Z. (1967): The taxonomy of some European graminicolous rusts.  Česká Mykologie 21(1): 12-16   (published: 1967)
  abstract   Based on revision of Czechoslovak graminicolous rust fungi, the author proposes the re-establishment of certain species concepts and nomenclatural changes in taxa of Puccinia. A summary of these changes is provided, including several varieties and subspecies, such as P. bromina var. paucipora and P. graminis var. stakmanii.

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.

DIETRICH W., MÜLLER J. (2001): The rust fungi, smut fungi and downy mildews in the Czech part of Krušné hory (Erzgebirge).   [Krušné hory, Peronosporales, Uredinales, Ustilaginales]  Czech Mycology 53(1): 89-118   (published: 10th June, 2001)
  abstract   In years 1849-2000 it has been found in Czech part of Krušné hory 101 species, subspecies and varieties of Uredinales, 21 of Ustilaginales and 45 of Peronosporales on 229 species of host plants. There are documented host plants, localities, years of findings and collectors. A historical survey of myc of loristical research of these micromycetes is presented. All species has been filed into typical plant formations. Characteristic species for highest mountain sites are enumerated. Statements of literature are compared with actual data. The new hosts in Czech republic are following: for Peronospora myosotidis Myosotis nemorosa, for Coleosporium senecionis and Puccinia silvatica Senecio hercynicus, for Melampsoridium betulinum Betula nana.

MARKOVÁ J., URBAN Z. (1977): To the knowledge of the brown rust of couch grass in Bohemia and Moravia. 2.  Česká Mykologie 31(2): 72-80   (published: 1977)
  abstract   This is a continuation of a previous paper (Čes. Mykol. 30: 90–105, 1976). Literature data, own results as well as ecologic and historic features are discussed to support the reasons for taxonomic treatment of brown rusts of couch grass and wheat: Puccinia persistens Plow. subsp. persistens var. persistens; P. persistens var. triticina (Eriks.) Urban et Marková (leaf rust of wheat); P. persistens subsp. agropyrina (Eriks.) Urban et Marková.

MARKOVÁ J. (1976): To the knowledge of the brown rust of couch grass in Bohemia and Moravia.1.  Česká Mykologie 30(2): 90-105   (published: 1976)
  abstract   A morphometric study of teliospores of brown rust from Agropyrum spp. and wheat reveals statistically significant differences between populations. Differences in teliospore dimensions support taxonomic distinctions among rust forms.

URBAN Z. (1974): Concerning taxonomic concept and nomenclature of some cereal rust fungi.  Česká Mykologie 28(2): 80-83   (published: 1974)
  abstract   The author discusses Chochrjakov’s proposal of names for several cereal rust fungi, such as Puccinia persistens f. sp. tritici and P. coronifera, and contrasts them with his own taxonomic and nomenclatural concepts. He recommends using names like Puccinia perplexans var. triticina for wheat brown rust, P. coronata var. avenae for oat rust, and subdivisions of P. graminis for cereal and grass rusts. He argues for the use of names that best reflect the pathogen’s morphology and ecology.

SVRČEK M. (1973): Doc. Dr. Zdeněk Urban quinquagenarius.  Česká Mykologie 27(3): 180-185   (published: 1973)

URBAN Z. (1966): On the taxonomy of Puccinia recondita Rob. ex Desm. s. l.  Česká Mykologie 20(1): 38-44   (published: 1966)
  abstract   Taxonomic distinctions within the Puccinia recondita complex are discussed using electron microscopy and morphology. The author argues that P. bromina, P. holcina, and P. triseti are valid separate species, not varieties of P. recondita.

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