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sclerotium|cepivorum":
4 articles found in Index.
ONDRÁČKOVÁ E., ONDŘEJ M., PROKINOVÁ E., NESRSTA M. (2013): Mycoparasitic fungi reducing the incidence and virulence of Bipolaris sorokiniana. [mycoparasitic activity, mycoparasitic fungi, Clonostachys, Trichoderma, Bipolaris sorokiniana] Czech Mycology 65(1): 103-112 (published: 10th June, 2013)
abstract
The mycoparasitic efficiency of 28 strains/isolates of Clonostachys rosea f. rosea and Clonostachys rosea f. catenulata against the pathogenic fungus Bipolaris sorokiniana was determined in dual cultures on Czapek-Dox nutrient agar. Strains with low and medium efficiency were antagonistically inhibited by B. sorokiniana, and inhibitory zones were formed between the colonies of both fungi. The mycelium of Clonostachys strains with high efficiency overgrew and degraded B. sorokiniana colonies without formation of an inhibitory zone. In dual cultures, Trichoderma sp. and the most effective Clonostachys strains degraded B. sorokiniana colonies within 3 to 5 and 12 to 15 days, respectively.When rye seeds were treated with a mixture of C. rosea f. rosea, Trichoderma sp. and B. sorokiniana, development of B. sorokiniana on both seeds and seedlings was reduced when compared with a B. sorokiniana treatment. The treatment of rye seeds with Clonostachys and Trichoderma had a positive effect on seed germination and seedling length.
ROD J. (1984): Antagonistic effects of some fungi on fungal pathogens causing storage rots of onion (Allium cepa L.). Česká Mykologie 38(4): 235-239 (published: 1984)
abstract
14 species of soil micromycetes belonging to Fungi imperfecti isolated from soil of spruce and mixed forests, apple orchard, uncultivated balk and Salix–Populus community are presented as new finds in Czechoslovakia.
BRILLOVÁ D., ŠUŤÁKOVÁ G. (1984): Viruslike particles in hyphae of parasitic fungus Cercospora beticola Sacc. Česká Mykologie 38(4): 193-196 (published: 15th November, 1984)
abstract
In the present paper we summarize the results of electron microscope investigation of the hyphae of three singlespore isolates of Cercospora beticola and a sterile mutant. In ultrathin sections of hyphal cells we have found two types of viruslike particles of spherical shape, 30—35 and 50—55 nm in diameter. They were dispersed in the cytoplasm and occasionally in the vacuoles as well. Viruslike particles of both types occurred together in the hyphal cells of the strain Mss2, whereas the hyphal cells of strain PR13 contained viruslike particles only one dimension, i.e. there were cells containing 30—35 nm and others 50—55 nm viruslike particles. In the infected cells we observed changes of mitochondria, the occurrence of lamellar structures, changes of cell walls leading to the disruption and liberation of viruslike particles from the cells. The sporulation of infected strains was considerably lower than in healthy one.
SVRČEK M. (1961): Stromatinia rapulum (Bull. ex Fr.) Boud. in Bohemia centralis. Česká Mykologie 15(3): 137-140 (published: 8th July, 1961)
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