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Search for "MICROASCUS": 15 articles found in Index.

FASSATIOVÁ O. (1982): New or rare records of some Deuteromycetes and Ascomycetes from Czechoslovakia.  Česká Mykologie 36(2): 100-108   (published: 1982)
  abstract   A new collection of a remarkable discomycete Daleomyces phillipsii (Massée) Seaver is reported from Southern Moravia, Czechoslovakia. A detailed description of macro and micro-features with emphasis on conspicuous giant size of fruitbodies is given. Taxonomic problems of this species known in present literature as Peziza proteana (Boudier) Seaver forma sparassoides (Boud.) Korf and of the genus Daleomyces Setch. are discussed. The only previous collection of this fungus described from Czechoslovakia as Aleuria proteana var. slavkoviensis Neuwirth (1946) is evaluated too. The genus Daleomyces with two known species is placed in the family Pezizaceae and a new combination – Daleomyces campbellii (Sacc.) J. Mor. c. n. is made.

SAXENA A.S., MUKERJI K.G. (1973): Fungi of Delhi. XVII. Three unrecorded coprophilous Ascomycetes.  Česká Mykologie 27(3): 165-168   (published: 1973)
  abstract   The morphology of selected Indian species of the families Xylariaceae and Clavicipitaceae is described. The paper includes four species of Xylaria and one species each of Cordyceps and Balansia, expanding knowledge of these fungal groups in India.

GRISHKAN I., TEMINA M. (2023): Diversity of microfungal communities inside saxicolous lichens from Nahal Oren, Mount Carmel, Israel.   [endolichenic fungi, lichen thallus, melanised fungi, microclimatic contrast, rock surface.]  Czech Mycology 75(1): 15-34   (published: 28th March, 2023)   Electronic supplement
  abstract   In this study, we examined the endolichenic fungal communities of saxicolous lichens covering the rocks in the Nahal Oren valley, northern Israel. A total of 60 fungal species belonging to 35 genera were isolated from six lichen species collected in the summer and winter on the south-facing slope (SFS) and north-facing slope (NFS) of the valley. We verified that rocks serve as a possible source for the formation of endolichenic communities because communities colonising lichen thalli and the rock surface shared 39% of species and clustered together on the SFS. On the NFS, with a comparatively favourable microclimate, lichen thalli abundantly harboured typical soil fungi such as Clonostachys rosea and Fusarium spp. in winter and summer, respectively. At the same time, more severe environmental conditions on the SFS facilitated the prevalence of melanised fungi with thick-walled and multicellular spores irrespective of season. The lowest species richness and isolate densities of endolichenic communities were registered in the thalli of Collema cristatum. This decrease, especially expressed in the summer, was probably associated with the antifungal effect of substances produced by its cyanobiont, as well as with the heavy dehydration of thalli during the dry season.

NOVÁKOVÁ A., KUBÁTOVÁ A., SKLENÁŘ F., HUBKA V. (2018): Microscopic fungi on cadavers and skeletons from cave and mine environments   [European caves, abandoned mines, dead bodies, bones, mammals, frogs, spiders, isopods, micromycetes]  Czech Mycology 70(2): 101-121   (published: 19th August, 2018)
  abstract   During long-term studies of microscopic fungi in 80 European caves and mine environments many cadavers and skeletons of animals inhabiting these environments and various animal visitors were found, some of them with visible microfungal growth. Direct isolation, the dilution plate method and various types of isolation media were used. The resulting spectrum of isolated fungi is presented and compared with records about their previous isolation. Compared to former studies focused mainly on bat mycobiota, this paper contributes to a wider knowledge of fungal assemblages colonising various animal bodies in underground environments.The most interesting findings include ascocarps of Acaulium caviariforme found abundant on mammals cadavers, while Botryosporium longibrachiatum isolated from frogs, Chaetocladium jonesiae from bats and Penicillium vulpinum from spiders represent the first records of these species from cadavers or skeletons.

MOUBASHER A.H., ABDEL-SATER M.A., SOLIMAN Z.S.M. (2018): Diversity of yeasts and filamentous fungi in mud from hypersaline and freshwater bodies in Egypt.   [fungal diversity, alkalinity, Wadi El-Natrun, lakes, Ibrahimia Canal, River Nile, molecular characterisation, ITS]  Czech Mycology 70(1): 1-32   (published: 26th January, 2018)
  abstract   The diversity of yeasts and filamentous fungi in muds from hypersaline alkaline lakes of Wadi ElNatrun and fresh water of the Nile River and Ibrahimia Canal was evaluated. The mean pH of saline water mud was 9.21, but fresh water mud registered 8.07. A total of 193 species (two varieties were distinguished in two of them) belonging to 67 genera were recovered from both muds investigated on DRBC (55 genera, 164 species), DG18 (36 genera, 117 species) and MY50G (23 genera, 76 species) media. From these, 17 species assigned to 12 genera were yeasts and 176 species and 2 varieties assigned to 55 genera were filamentous fungi. The highest numbers of fungal propagules were recovered on DRBC from freshwater mud, while the lowest on MY50G from saline water mud. Yeasts constituted a small proportion of all propagules from the two mud types on all three media, whereas filamentous fungi were the major component. However, freshwater mud samples yielded higher numbers of yeast genera and species using all three media. Candida was common in freshwater mud and rare in saline water mud, while Meyerozyma and Rhodotorula were infrequent in both muds. The remaining yeast species were recovered from freshwater mud only. Aspergillus (46 species) was the most common genus of filamentous fungi encountered in all samples, ranging in frequency from 39.82% to 96.62%; A. terreus, A. flavipes and A. niger dominated in both types of mud. Cladosporium (9 species), Fusarium (8 species), Penicillium (18 species) and Scopulariopsis (7 species) were encountered in both types of mud. Notably, 47 filamentous species were isolated only on the media with lower water activity (DG18, MY50G).

ABDEL-SATER M.A., MOUBASHER A.H., SOLIMAN Z.S.M. (2016): Diversity of filamentous and yeast fungi in soil of citrus and grapevine plantations in the Assiut region, Egypt.   [Mycobiota, biodiversity, phenotypic and biochemical characterisation, ITS sequence, Coniochaeta canina, Aspergillus stella-maris]  Czech Mycology 68(2): 183-214   (published: 20th December, 2016)
  abstract   An extensive survey of soil mycobiota on citrus and grapevine plantations in Sahel-Saleem City, Assiut Governorate, Egypt was carried out using the dilution-plate method and 2 isolation media at 25 °C. Sixty-four genera and 195 species of filamentous fungi and 10 genera and 13 species of yeasts were recovered. A higher diversity (number of genera and species) and gross total counts were recovered from citrus than from grapevine soil. The peak of filamentous fungi recovered from both soils was found to be in February. Aspergillus (45 species) was the most dominant genus; A. ochraceus predominated in citrus plantations, while A. niger and A. aculeatus in grapevine. The Penicillium count came second after Aspergillus in citrus (23 species) and after Aspergillus and Fusarium in grapevine (11 species).Penicillium citrinum, P. ochrochloron and P. olsonii were more common in citrus plantations, but they were replaced by P. oxalicum in grapevine soil. Fusarium (19 species) was represented in 88.9–100% of both soils on both media; F. solani predominated in both soils, while F. incarnatum came next in citrus, and F. babinda and F. oxysporum in grapevine. Humicola (3 species) with the dominant H. fuscoatra was recorded in 61.1–83.3% of soil of both plantations, while Talaromyces (with T. purpureogenus followed by T. pinophilus being the most common) was recorded in 83.3–100% on DRBC and 38.9–50% on DYM from the soil of plantations of both crops. Volutella (5 species) was common in citrus but missing from grapevine soil. The present study reveals that hyaline fungi predominated over dark-coloured ones. Yeasts comprised only minor proportions in both soils (maximum 0.5%). They showed their peak in the soil of citrus plantations in April and in grapevine in February. All species were recovered in one or two samples only. Diutina catenulata, Debaryomyces hansenii, Galactomyces (3 species), Hanseniaspora occidentalis, Kluyveromyces marxianus, Meyerozyma caribbica, and Schwanniomyces pseudopolymorphus were encountered in citrus only, while Cryptococcus laurentii, Pichia kudriavzevii, Meyerozyma guilliermondii and Rhodotorula sp. in grapevine only. Physiological and growth characteristics were obtained for most of the recovered yeasts.

NOVÁKOVÁ A., VAUGHAN M.J. (2016): Dimargaris bacillispora - novel records from cave environment and its isolation in culture.   [Dimargitales, cave sediment, cadaver, cave-inhabiting invertebrates, faecal pellets]  Czech Mycology 68(2): 167-182   (published: 7th November, 2016)
  abstract   The coprophilous Dimargaris bacillispora is a rarely found and more rarely isolated microfungal species. In this study, we report the repeated observation and isolation of this fungus from a cave sediment used to rear cave-inhabiting isopods and springtails in the laboratory, originating from the Domica Cave, Slovakia. Dimargaris bacillispora was also observed and isolated from the faeces and cadavers of these laboratory-reared invertebrates. Subsequently, pure culture isolates of D. bacillispora were obtained from these substrates, characterised and identified. Finally, this species was then isolated directly from the cave sediment of the Domica Cave after several days of exposure of agar slants to the cave environment. This is the first record of this species from Europe and from a subterranean environment. Additionally, this study reports a new growth substrate for a fungus which was considered to be strictly coprophilous and mycoparasitic. This study suggests that this species is probably more widely distributed in nature than is reported in the literature, due to the difficulties of viewing its delicate sporophores and growing it in culture.

ABDULLAH S.K., MONFORT E., ASENSIO L., SALINAS J., LOPEZ LLORCA L.V., JANSSON H.B. (2010): Soil mycobiota of date palm plantations in Elche, SE Spain.   [soil saprotrophic fungi, phytopathogenic fungi, Phoenix dactylifera, isolation methods]  Czech Mycology 61(2): 149-162   (published: 10th August, 2010)
  abstract   The mycobiota of soil from date palm (Phoenix dactylifera) plantations in Elche, SE Spain was examined using 23 soil samples and five isolation methods. One hundred and nineteen species assigned to 67 genera were isolated. The most frequent species were in decreasing order: Aspergillus fumigatus, A. niger, Neosartorya spinosa, Thielaviopsis punctulata, Chaetomium bostrychodes, Gilmaniella macrospora, Aspergillus candidus, Fusarium oxysporum, Rhizopus microsporus, Sordaria fimicola, Aspergillus terreus, Chaetomium murorum, Fusarium solani, Mucor racemosus, Penicillium citrinum and Thielaviopsis paradoxa. The thermotolerant and thermophilic species of Malbranchea cinnamomea, Myriococcum thermophilum, Rhizomucor miehei, Scytalidium thermophilum, Talaromyces emersonii, Thermoascus aurantiacus and Thermomyces lanuginosus were detected in various frequencies of occurrence. Our findings are compared with those from a similar survey of soil from date palm plantations in Iraq. Our study indicates that there is no characteristic mycobiota for soil in date palm plantations except for the more frequent isolation of some species well known as pathogens on date palm.

NOVÁKOVÁ A., PIŽL V. (2003): Mycoflora in the intestine of Eisenia andrei (Oligochaeta, Lumbricidae) and in vermiculture substrates.   [cattle manure, saprotrophic and cellulolytic microfungi, earthworms]  Czech Mycology 55(1-2): 83-102   (published: 23rd July, 2003)
  abstract   Mycoflora of three commercial vermiculture systems based on cattle manure derived sub­ strates and Eisenia andrei earthworms was studied using several isolation methods. A total of 172 taxa of saprotrophic micromycetes were isolated (19 taxa of Zygomycetes, 9 taxa of Ascomycetes and 144 taxa of mitosporic fungi). Aspergillus fumigatus was the most frequent microfungal species in the intestine of Eisenia andrei. In vermicuture substrates, Aspergillus flavus and Aspergillus fumigatus were among species isolated very frequently by the soil dilution method, while Rhizopus stolonifer was estimated as frequent species using the soil washing isolation technique.

ŘEPOVÁ A. (1989): Soil micromycetes from Czechoslovakia - a list of isolated species with bibliography. II.  Česká Mykologie 43(4): 235-243   (published: 17th November, 1989)
  abstract   A list of micromycetes (saprophytic, keratinophilic, rhizosphere, nematophagous, ovicidal, dermatophytes, and cellular slime moulds) isolated from various Czechoslovak soils is presented. The paper includes distribution data and literature citations for each species. It is the second installment of the series and documents a wide variety of fungi, including Chaetomium species and other frequently encountered genera.

HUBÁLEK Z. (1981): A systematic survey of dimorphic and polymorphic fungi.  Česká Mykologie 35(4): 209-226   (published: 1981)
  abstract   Various definitions of the term dimorphism in fungi are briefly discussed and a general concept is given with a suggested morphological classification of the dimorphism. Dimorphism (and polymorphism) is delimited as an environmentally controlled reversible phenotypic duality (or plurality in the case of polymorphism) in the morphogenesis of the vegetative fungal cells, which is not restricted to pathogenic species and to the mycelial-yeast transitions only. A systematic list and an alphabetical index of the fungi exhibiting the phenomena of cellular dimorphism or polymorphism are presented.

HUBÁLEK Z., ROSICKÝ B., OTČENÁŠEK M. (1979): Fungi on the hair of small wild mammals in Czechoslovakia and Yugoslavia.  Česká Mykologie 33(2): 81-93   (published: 1979)
  abstract   A new record of dry rot fungus Serpula lacrimans (Wulf. ex Fr.) Schroet. on the trunk bases of two living trees of Norway Spruce Picea abies (L.) Karst. in the Botanical Garden in Průhonice near Prague is described. Differences between Serpula lacrimans and Serpula himantioides (Fr. ex Fr.) Karst. and the phytopathological significance of the new record are discussed.

SAXENA A.S., MUKERJI K.G. (1973): Fungi of Delhi. XVI. Further additions to Indian species of Chaetomium.  Česká Mykologie 27(3): 162-164   (published: 1973)
  abstract   Three coprophilous ascomycetes previously unrecorded in India—Kernia geniculotricha, Microascus manginii, and Podospora tetraspora—are described. Their morphology and growth characteristics are provided, and their isolation methods are detailed.

FRAGNER P., HEJZLAR J. (1973): „Graphiosis“- eine neue Erkrankung des Menschen?  Česká Mykologie 27(2): 98-106   (published: 1973)
  abstract   Part of the resting spores of E. virulenta, E. thaxteriana, and E. destruens germinate still after 72 hours of treatment with concentrated ajatin. A culture 14 days old may furnish a viable inoculum after being submerged in concentrated ajatin for 96 hours. The resting spores of all three species are at optimum state in a 14 days old culture, or during the first two months, stored at dry state in the refrigerator (7–15 °C).

FASSATIOVÁ O. (1971): Some new records of Hyphomycetes from Czechoslovakia.  Česká Mykologie 25(2): 112-117   (published: 1971)
  abstract   In uranium mines near Příbram (1967–69), two rare species new to Czechoslovakia were found: Geotrichum microsporum G. Smith and Scopulariopsis acremonium (Del.) Vuill. Also described is a new variety: Tritirachium heimii (Saccas) Langeron var. griseum var. nov. The paper includes morphological descriptions and growth characteristics on different media.

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