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Search for "GAEUMANNOMYCES": 8 articles found in Index.

KRUPODOROVA T., BARSHTEYN V., KIZITSKA T., RATUSHNYAK V., BLUME Y. (2023): Antagonistic activity of selected macromycetes against two harmful micromycetes.   [ascomycetes, Aspergillus niger, basidiomycetes, dual-culture, Penicillium polonicum.]  Czech Mycology 75(1): 85-100   (published: 23rd June, 2023)
  abstract   Competition between 31 macromycete species and two harmful micromycetes Aspergillus niger and Penicillium polonicum was evaluated using dual-culture plate assay. All investigated fungi, except for Inonotus obliquus and Lepista luscina, possessed different levels of antagonistic activity against the tested micromycetes. Hypsizygus marmoreus and Lyophyllum shimeji were inactive against A. niger. Morchella esculenta and Oxyporus obducens were passive in the case of co-growth with P. polonicum. The study of fungal interactions showed variability in types of reactions and level of their visualisation. Co-cultivation of the studied species resulted in the following reactions: deadlock after mycelial contact and at a distance, partial or complete replacement after initial deadlock on contact. In general, the studied macromycetes showed moderate activity against the two micromycetes, as 11 species showed active and 7 species moderate antagonism. Results revealed higher antagonistic activity of macromycetes against P. polonicum than in A. niger co-cultures. Wood-decaying species Ganoderma lucidum and Trametes versicolor were the most active fungi against the two tested micromycetes with a maximal antagonism index. These findings provide valuable insights which can be further explored by means of in vivo assays to find a suitable agent for the biocontrol of diseases or spoilage caused by A. niger and P. polonicum.

Colloquium „Fungi as Model Organisms in Research and Biotechnology - III“ Olomouc, Czech Republic, 2 September 2005.  Czech Mycology 57(3-4): 307-323   (published: 10th February, 2006)
  abstract   The colloquium was a continuation of the previous scientific meetings that took place in Olomouc in 1999 and 2002 (Czech Mycology 52: 139-178, 2000 and 55: 103-149, 2003). It was organised by the Commission for Experimental Mycology of the Czechoslovak Microbiological Society and the Czech Scientific Society for Mycology together with the Institute of Biology, Faculty of Medicine of Palacký University, Olomouc. The aim of the colloquium was to provide a platform for a broad discussion on experimental mycology in all branches of basic and applied research. Besides two plenary lectures, 8 short communications and 8 posters were presented. In total 32 researchers from the Czech and Slovak Republics took part in the colloquium and discussed various topics important for the further development of experimental mycology. Abstracts of the contributions are given here.

Colloquium "Fungi as Model Organisms in Research and Biotechnology", Olomouc, September 14th, 1999.  Czech Mycology 52(2): 139-178   (published: 20th April, 2000)
  abstract   The colloquium was organized by the joint Commission for Experimental Mycology of the Czechoslovak Microbiological Society and the Czech Scientific Society for Mycology. The purpose of the colloquium was to provide a platform for a broad discussion on the use of fungi as model organisms in both basic and applied research. The programme of the colloquium was divided into four parts dealing with the following topics: phytopathology, biotechnology and ecology, physiology and biochemistry, and medical mycology. Each topic was opened with a plenary lecture (30 min.), followed by short communications (10 min.) and accompanied by poster presentations. Besides four plenary lectures, 15 short communications and 21 posters were presented. In total 38 researchers took part in the colloquium, at who discussed various questions of importance for experimental mycology until late in the evening. Abstracts of the contributions are given here.

BRILLOVÁ D., SLADKÁ O. (1989): Transmission of virus-like particles from the infected into the healthy strains of Cercospora beticola Sacc.  Česká Mykologie 43(3): 155-165   (published: 21st August, 1989)
  abstract   The paper deals with the ultrastructure of the conidia of powdery mildew (Erysiphe graminis f. sp. hordei Marchal) using the freeze-etching technique. Cross fractures through whole conidia exposed the cell wall and faces of the plasma membrane bearing invaginations. In addition, structural details of the conidium internal organization were recognized. The nuclear membrane showed numerous pores scattered over the nuclear surface. Numerous mitochondria, small vesicles and glycogen accumulated along the conidium periphery. The results obtained with Erysiphe graminis conidia prove the advantages of the freeze-etching method over the conventional fixation procedures for fungal conidia.

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.

STANĚK M. (1984): Microorganisms in the hyphosphere of fungi. I. Introduction.  Česká Mykologie 38(1): 1-10   (published: 10th February, 1984)
  abstract   The surface and immediate surroundings of fungal hyphae affected by their activity is termed the „hyphosphere“. Differences between microorganisms colonizing the hyphosphere and those colonizing a substrate is termed „hyphosphere effect“. The more extensive area of fungal effect on substrate, on the surface and surroundings of fruit-bodies, i.e. the environment affected by the activity of fungi is termed „mycosphere“. The nomenclature proposed is in agreement with the classification of the phytosphere of higher plants. The brief literary survey presents data on incidence of microorganisms in hyphosphere and on their importance, taking into account the results obtained in the Czechoslovak research institutions.

Abstracts of papers delivered at the 7th Conference of Czechoslovak mycologists held at České Budějovice, 13-18 September, 1982.  Česká Mykologie 37(2): 108-128   (published: 1983)
  abstract   Abstracts of papers delivered at the 7th Conference of Czechoslovak Mycologists, held at České Budějovice, 13–18 September 1982 - 1st Section: Taxonomy, Ecology and Mycofloristics

MORAVEC Z. (1960): The Mohelno serpentine steppe.  Česká Mykologie 14(2): 101-108   (published: 20th April, 1960)

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