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Search for "kolaŘÍk m.": 16 articles found.
VALDA S., KOLAŘÍK M. (2024): Surprising discovery of Sedecula pulvinata in Central Europe – is it really a species endemic to the western USA? [hypogeous fungi, endemism, Boletales, ecology, distribution, GlobalFungi.] Czech Mycology 76(1): 33-44 (published: 3rd May, 2024)
abstract
Sedecula pulvinata (Basidiomycota: Boletales) is a hypogeous fungus reported as a rare and endemic species in the dry conifer forests of the western United States. Surprisingly, fruitbodies found in the Czech Republic, Central Europe, in 2011 match this species based on ITS rDNA sequences (99.3% sequence similarity) and morphology. Additional records attributable to this species based on sequence similarity were found in the GlobalFungi database of environmental metabarcoding data. This search expands the currently known geographical range in the western USA and adds new records from one Canadian and one Pakistani environmental DNA soil sample. These records challenge the assumption of its endemicity in the western United States. The European find, along with some from the USA and one from Canada, which significantly differ in habitat, suggests a broader ecological flexibility of this species. Further investigations are needed to determine the relationships between North American and European populations. Additionally, historical records and potential synonymy with other fungal species from Europe warrant further research into the taxonomy and systematics of this genus and related taxa.
KŘÍŽ M., JINDŘICH O., KOLAŘÍK M. (2019): Contribution to the knowledge of mycobiota of Central European dry grasslands: Phaeoclavulina clavarioides and Phaeoclavulina roellinii (Gomphales). [Ramaria, rock steppes, description, ecology, Bohemia.] Czech Mycology 71(2): 137-150 (published: 6th November, 2019)
abstract
The paper reports on the occurrence of Phaeoclavulina clavarioides and P. roellinii in dry grasslands of rock steppes in the Czech Republic. Occurrence in this habitat is characteristic of both species, formerly considered members of the genus Ramaria, and they are apparently the only known representatives within the Gomphales with this ecology in Central Europe. The authors present macro- and microscopic descriptions and provide rDNA barcode sequence data for both species based on material collected at localities in Bohemia.
JANDA V., KŘÍŽ M., KOLAŘÍK M. (2019): Butyriboletus regius and Butyriboletus fechtneri: typification of two well-known species [lectotype, epitype, nomenclature, taxonomy, Czech Republic] Czech Mycology 71(1): 1-32 (published: 2nd January, 2019)
abstract
The paper deals with type material of two species of the genus Butyriboletus, which were described from the Czech Republic, originally as Boletus regius (Krombholz 1983) and Boletus fechtneri (Velenovský 1922). For both species lectotypes are designated, for B. fechtneri also an epitype. The authors present macro- and microscopic descriptions of these species based on the study of rich material including collections from the area of the type localities. Characters distinguishing both species from similar taxa are discussed.
KOLAŘÍK M. (2018): New taxonomic combinations in endophytic representatives of the genus Nigrograna [Biatriospora, taxonomy, endophytic fungi] Czech Mycology 70(2): 123-126 (published: 28th September, 2018)
abstract
Nigrograna (Ascomycota: Pleosporales), with the type species N. mackinnonii, has been considered a synonym of Biatriospora. Recently, it was shown that these two genera are distinct. In this study, four species earlier described in Biatriospora, i.e. B. antibiotica, B. carollii, B. peruviensis and B. yasuniana, which are phylogenetically related to N. mackinnonii, are combined in Nigrograna. Recently, three teams of authors published eight Nigrograna species almost simultaneously (2016–2017), thus some were not compared phylogenetically. A comparison of available sequences showed that all nine accepted species are unique. It can be concluded that Nigrograna is ecologically diverse, comprising species living as endophytes or saprobes of plants (some of them associated with other fungi living on those plants) as well as species living in marine or estuarine environments.Interestingly, all associations with vascular plants concern angiosperms.
HOLEC J., KOLAŘÍK M. (2017): First report of Mycena clavata (Fungi, Agaricales) in the Czech Republic including notes on its taxonomy, phylogenetic position and ecology. [Europe, Boubínský prales virgin forest, Bohemian Forest, ITS-LSU rDNA sequences, Phloeomana] Czech Mycology 69(1): 1-14 (published: 19th January, 2017)
abstract
The rare gilled fungus Mycena clavata is reported from the Czech Republic for the first time. It was found on large fallen trunks of Picea abies in Boubínský prales virgin forest, the best preserved montane old-growth forest in the country. The basidiomata occurred in the lower half of the trunks, either on their upper or lateral sides, on bark covered by mosses, on bare bark, or directly on wood covered by mosses, in wet times of the year. Descriptions and photographs of macro- and microcharacters are provided and data on the distribution and ecology of M. clavata are summarised. The species was sequenced for the first time. ITS-LSU rDNA sequences confirmed the species’ distinct position and showed that M. clavata belongs to a moderately supported clade consisting of various Mycena and Hemimycena species, some of them recently transferred to the vaguely delimited genus Phloeomana.
NOVÁKOVÁ A., SAVICKÁ D., KOLAŘÍK M. (2015): Two novel species of the genus Trichosporon isolated from a cave environment. [Agaricomycotina, Tremellomycetes, morphology, DNA sequence data] Czech Mycology 67(2): 233-239 (published: 30th October, 2015)
abstract
Based on morphological and physiological properties and ITS and LSU rDNA sequences, two novel species of the anamorphic basidiomycetous genus Trichosporon (Tremellomycetes, Agaricomycotina) are described.
NOVÁKOVÁ A., KUBÁTOVÁ A., VALINOVÁ Š., HUBKA V., KOLAŘÍK M. (2015): Trichoderma fassatiae, a new species from the section Pachybasium isolated from soil in the Czech Republic. [Ascomycota, Hypocreales, Trichoderma, morphology, DNA sequence data] Czech Mycology 67(2): 227-231 (published: 30th October, 2015)
abstract
Trichoderma fassatiae sp. nov. isolated from forest soil in the Czech Republic is described based on phenotype and DNA sequence data (ITS rDNA, RPB2, and TEF1α). It belongs to the Semiorbis clade in the section Pachybasium. Characters distinguishing it from similar species are provided.
KOLAŘÍK M. (2015): New combinations for ergot species described under their anamorphic names by S. Pažoutová and colleagues. [Claviceps, Sphacelia, nomenclature, C. eriochloae, C. lovelessii, C. texensis] Czech Mycology 67(2): 135-136 (published: 24th July, 2015)
abstract
Three new ergot species have been described by S. Pažoutová and her colleagues under their anamorphic name Sphacelia. The recent changes to the International Code of Nomenclature for algae, fungi, and plants resulted in the end of dual nomenclature and the name Claviceps was proposed as the only one valid for ergot fungi. In this paper the combination of three Sphacelia species into the genus Claviceps is provided.
KOLAŘÍK M., HUJSLOVÁ M., VÁZQUEZ-CAMPOS X. (2015): Acidotolerant genus Fodinomyces (Ascomycota: Capnodiales) is a synonym of Acidiella. [soil fungi, Dothideomycetes, taxonomy, acid soils, ITS rDNA] Czech Mycology 67(1): 37-38 (published: 10th April, 2015)
abstract
A new combination, Acidiella uranophila (X. Vázquez-Campos) M. Kolařík, Hujslová & X. Vázquez-Campos is provided for Fodinomyces uranophilus X. Vázquez-Campos based on similarity in phenotype and genotype.
KOLAŘÍK M., HULCR J., KIRKENDALL L.R. (2015): New species of Geosmithia and Graphium associated with ambrosia beetles in Costa Rica. [ambrosia fungi, Hypocreales, Scolytodes, Cnesinus, ophiostomatoid fungi] Czech Mycology 67(1): 29-35 (published: 10th April, 2015)
abstract
Geosmithia cnesini sp. nov. is a dominant symbiont of the ambrosia beetle Cnesinus lecontei collected from Croton draco in Costa Rica. This fungus is characterised by whitish colonies and penicillate conidiophores with extraordinary large catenate conidia. Graphium scolytodis sp. nov. is described here from the galleries of ambrosia beetle Scolytodes unipunctatus collected from the trunk of a fallen Cecropia angustifolia tree in Costa Rica. This species does not seem to be a nutritional mutualist but rather a stable associate of unknown function. It produces mononematic conidiophores only and is related to Graphium penicillioides.
ŠUTARA J., JANDA V., KŘÍŽ M., GRACA M., KOLAŘÍK M. (2014): Contribution to the study of genus Boletus, section Appendiculati: Boletus roseogriseus sp. nov. and neotypification of Boletus fuscoroseus Smotl. [Boletus roseogriseus sp. nov., Boletus fuscoroseus, morphology, molecular phylogeny, neotypification, distribution] Czech Mycology 66(1): 1-37 (published: 4th June, 2014)
abstract
The paper deals with Boletus roseogriseus and Boletus fuscoroseus, two closely related species of the genus Boletus, section Appendiculati. B. roseogriseus is described as a new species based on a morphological and molecular study of collected material. B. fuscoroseus, validly published by Smotlacha in 1912, has been often incorrectly named Boletus pseudoregius. This name, however, does not have priority because B. pseudoregius was validly published as late as 1988. In order to contribute to clarification of some controversial questions concerning B. fuscoroseus, the authors have selected a neotype for this species. Descriptions of B. roseogriseus and B. fuscoroseus are accompanied by results of a molecular study (ITS and LSU rDNA sequences) and a discussion of characters distinguishing these species from other representatives of section Appendiculati.
HOLEC J., KOLAŘÍK M. (2013): Notes on the identity of Hygrophoropsis rufa (Basidiomycota, Boletales). [Hygrophoropsidaceae, taxonomy, phylogeny, variability, Europe] Czech Mycology 65(1): 15-24 (published: 10th June, 2013)
abstract
The rare fungus Hygrophoropsis rufa is documented from the Czech Republic for the first time. Both classical and DNA study results have proved that H. rufa is a good species, clearly separated from H. aurantiaca. Macroscopically, it differs by an orange-brown to dark brown pileus surface. The stability of the observed differences in spores, being slightly smaller and thick-walled in H. rufa, has to be confirmed using a larger set of collections. A brief comparison with dark-coloured taxa of the group of H. aurantiaca is added. Hygrophoropsis aurantiaca var. atrotomentosa most probably represents a synonym, but its nomenclatural status has to be clarified.
VOHNÍK M., FENDRYCH M., KOLAŘÍK M., GRYNDLER M., HRŠELOVÁ H., ALBRECHTOVÁ J., VOSÁTKA M. (2007): The ascomycete Meliniomyces variabilis isolated from a sporocarp of Hydnotrya tulasnei (Pezizales) intracellularly colonises roots of ecto- and ericoid mycorrhizal host plants. [ericoid mycorrhiza, ectomycorrhiza, Variable White Taxon, Rhizoscyphus ericae (= Hymenoscyphus ericae)] Czech Mycology 59(2): 215-226 (published: 28th December, 2007)
abstract
Attempts to isolate the ascomycete Hydnotrya tulasnei from fresh hypogeous sporocarps into a pure culture yielded beside H. tulasnei also a strain of Meliniomyces variabilis (MVA-2). Both phenotype and genotype analyses showed that MVA-2 was highly similar to another M. variabilis strain, isolated previously from a root tip of Picea abies. The mycorrhizal potential of both H. tulasnei and M.variabilis is still dubious. Therefore, we tried an in vitro synthesis of root-fungus association between H. tulasnei, both M. variabilis strains and typically ectomycorrhizal (P. abies and Pinus sylvestris) and typically ericoid mycorrhizal (Vaccinium corymbosum) host plants. For comparison, a strain of Rhizoscyphus ericae was included. Both M. variabilis strains formed intracellular structures characteristic of ericoid mycorrhiza in V. corymbosum roots, and also colonised the roots of P. abies and P.sylvestris seedlings, modifying their morphology. Superficially, Picea and Pinus root tips resembled early stages of EcM development, but transversal sections revealed absence of the Hartig net and frequent intracellular colonisation of the cortex. The reference strain of R. ericae showed similar behaviour in Picea, Pinus and Vaccinium roots, only the intracellular colonisation was more intensive and morphology of roots of both conifers was less changed when compared to M. variabilis. H. tulasnei failed to colonise the roots of P. abies and V. corymbosum, possibly due to sub-optimal conditions for its growth.
REMEŠOVÁ J., KOLAŘÍK M., PRÁŠIL K. (2007): Microfungi on the kernels of transgenic and non-transgenic maize damaged by the European corn borer. [Bt-maize, microfungi, plant protection, European corn borer, Zea mays] Czech Mycology 59(2): 205-213 (published: 28th December, 2007)
abstract
From 2002–2004 isolations were carried out to determine the kinds and abundance of microfungi from non-transgenic maize kernels damaged by the European corn borer (ECB) and from transgenic Bt-maize (enriched with delta-endotoxin from the soil bacterium Bacillus thuringiensis). Bt-maize and non-transgenic maize (Zea mays) were grown at Praha-Ruzyně and Ivanovice na Hané, Czech Republic. Thirty-one taxa of filamentous microfungi were isolated, including eight zygomycetes and twenty-three ascomycetes (anamorphic stage). Presence of ECB, corn treatment, year, locality and isolation method significantly accounted for differences in fungus communities. Bt-maize was significantly different from the treatments with non-transgenic hybrids and was often associated with the potentially toxinogenic fungi Alternaria alternata and Epicoccum nigrum. Conversely, Bt-maize had lower incidences of Fusarium spp. and Acremonium strictum.
KOLAŘÍK M., SLÁVIKOVÁ E., PAŽOUTOVÁ S. (2006): The taxonomic and ecological characterisation of the clinically important heterobasiodiomycete Fugomyces cyanescens and its association with bark beetles. [Fugomyces cyanescens, Microstromatales, fungi associated with bark beetles, rDNA phylogeny] Czech Mycology 58(1-2): 81-98 (published: 10th August, 2006)
abstract
Anamorphic heterobasidiomycete, taxonomically highly related or identical with Fugomyces cyanescens (Basidiomycota: Microstromatales), formerly known mostly from the clinical material, was frequently found in association with nine phloemophagous bark beetles at eleven localities in Hungary, Bulgaria and in the Mediterranean. The isolates were identified using morphological characteristics, its physiological profile and rDNA sequences and compared with the ex-type strain. The phylogeny was studied based on LSU and ITS-rDNA analysis. The morphology and ecology of the species is discussed in relation to related taxa which occur primarily on plants (phylloplane saprobes, parasitism), but sporadically also on clinical material obtained mostly from immuno-compromised patients.
KUBÁTOVÁ A., KOLAŘÍK M., PRÁŠIL K., NOVOTNÝ D. (2004): Bark beetles and their galleries: well-known niches for little known fungi on the example of Geosmithia. [microfungi, Geosmithia, Scolytidae, ophiostomatoid fungi, yeasts] Czech Mycology 56(1-2): 1-18 (published: 12th August, 2004)
abstract
The oak bark beetle (Scolytus intricatus, Scolytidae, Coleoptera) was studied during the years 1997-2003 with respect to the occurrence of microscopic fungi on the surface of its body. Samples were collected in eight localities in the Czech and Slovak Republics. The investigation was focused on all different stages of the beetle’s life cycle: eggs, larvae, adults be for e emergence, adults in generation and maturation feeding (nearly 600 samples), and also on galleries (400 samples). The most frequent fungi associated with S. intricatus were yeasts, Geosmithia spp. and Penicillium spp. Ophiostomatoid fungi were isolated, too. Great attention was paid to the occurrence of Geosmithia spp., which were so far recorded rarely. They were frequently found in all stages of the life cycle of Scolytus intricatus, except for males in maturation feeding. The ecology of Geosmithia spp. in feedings of phloem inhabiting insects is discussed for their negative cellulase production and the ecology of associated insect species. Trees infested with Scolytus intricatus represent a major and still little explored niche of Geosmithia spp.
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