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Search for "PUCCINIA|perplexans var. triticina": 5 articles found in Index.

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.

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. (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.

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