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Search for "KLÁN J.": 22 articles found.
KOTLABA F., KLÁN J. (1994): A handful of Aphyllophorales collected in Greece. [Aphyllophorales, host plants, Greece] Czech Mycology 47(3): 199-206 (published: 17th June, 1994)
abstract
26 species of Aphyllophorales collected by the authors in Greece, some new for that country, are listed with rare or less abundant fungi represented by Inonotus rickii, Perenniporia tenuis, Porotheleum fimbriatum and Vuilleminia coryli. Some of common species were also found on unusual hosts, as e.g. Bjerkandera adusta and Trametes versicoloron Acacia retinodes, Laetiporus sulphureus on Eucalyptus camaldulensis and Radulomyces confluens on Anagyris foetida. The rather rare Perenniporia tenuis was found on Bougainvillea glabra, Phlomis fruticosa and on Vitis vinifera, whereas Vuillemmia corylion Carpinus orientalis. Formajor part of these fungi represent new records of hosts.
KLÁN J., ZIMA T., BAUDIŠOVÁ D. (1994): Potentiated effect of ethanol on Amanita phalloides poisoning. [Amanita phalloides, ethanol, poisoning] Czech Mycology 47(2): 145-150 (published: 15th March, 1994)
abstract
Interaction of the effects of death cap and ethanol in rats was studied. Ethanol was found to have no protective effect during poisoning by Amanita phalloides. In contrast, it burdened hepatocytes with its own detoxification and made the absorption of the fungal toxins easier due to a changed membrane fluidity. Besides, ethanol was responsible for an increased deimage to the cellular membranes by free radicals that originated in its metabolism. The potentiated effects of the two noxae is thus defined. Our results suggest that the intoxication by A. phalloides parallelled by digestion of a small dose of an alcoholic drink will have a more serious course and worse prognosis.
KLÁN J., BAUDIŠOVÁ D. (1994): Enzyme N-acetyl-β-D-glucosaminidase (NAG) as an early marker of intoxications by the Cortinarius species (nephrotoxic syndrom). [Cortinarius species, nephrotoxic syndrom, enzyme N-acetyl-β-glucosaminidase] Czech Mycology 47(1): 65-72 (published: 6th January, 1994)
abstract
The enzyme N-acetyl-β-D-glucosaminidase (EC 3.2.1.30; NAG) was evaluated as a marker of intoxications by the Cortinarius mushroom (nephrotoxic syndrom).Enzyme activity wasmeasured in the urine after i.p. applications of Cortinarius orellanus (Fr.) Fr. and C. rubellus Cooke species, respectively, by fluorimetric and/or colorimetric methods. Considerably higher level of the enzyme (up to 50 times) was observed already on the first day after intoxication, when other s markers of renal damage (e.g. hematuria) were without changes. The high level of enzyme activity was detected up to 4th day after intoxication. The picture of intoxication was completed by determination of the urea level in serum and by histological examinations.
KLÁN J. (1992): Two Gerronema species growing on Marchantia thalli 1. G. marchantiae Sing. et Clém., 2. G. postii (Fr.) Sing. Česká Mykologie 46(1-2): 121-125 (published: 1st April, 1993)
abstract
Description of two rare Gerronema species growing on Marchantia thalii is presented. The main distinguishing features of both species, their ecology, and distribution, are described. G. postii is associated with fireplace mosses. G. marchantiae, an alpine element, has been recorded in Czechoslovakia for the first time.
KLÁN J., BAUDIŠOVÁ D., SKÁLA Z. (1992): Enzymy activity of mycelial cultures of saprotrophic macromycetes (Basidiomycotina). III. A taxonomic application. Česká Mykologie 46(1-2): 75-85 (published: 1st April, 1993)
abstract
Mycelial cultures of 92 species belonging to 40 genera of saprotrophic basidiomycetous fungi (orders Agaricales, Aphyllophorales, Gastrosporiales, Lycoperdales and Nidulariales) were tested with respect to the production of extracellular hydrolytic enzymes and oxidoreductases (laccase, peroxidase, tyrosinase, diaminooxidase, proteases, amylases, urease, p-cresol oxidases and hydrolyse of tyrosine) using simple plate and spot tests. The results obtained were evaluated by means of factor analysis methods. Distribution of enzyme activities in individual species was discussed.
KLÁN J., BAUDIŠOVÁ D. (1990): Toxicity of Amanita phalloides (Fr.) Link in a vinegar brine. Česká Mykologie 44(4): 225-227 (published: 26th November, 1990)
abstract
The toxicity of Amanita phalloides preserved in vinegar brine was investigated. Amanitins were detected in the water extract (up to 90% of toxins), but only minor levels were found in the brine, and none in fruit body tissue after removal of the brine. Lignin test and chromatographic methods were used.
KLÁN J. (1990): Lignin test - its mycotoxicological and chemotaxonomical significance. Česká Mykologie 44(4): 220-224 (published: 26th November, 1990)
abstract
A total of 135 species of Basidiomycetes were analyzed using the lignin test. Though not specific for amanitins or tryptamine derivatives, the test is useful in chemotaxonomic studies of genera Russula, Lyophyllum, Amanita, and Psilocybe.
KLÁN J., BAUDIŠOVÁ D. (1990): Enzyme activity of mycelial cultures of saprotrophic macromycetes (Basidiomycotina and Ascomycotina). II. Methods of oxidoreductases estimation. Česká Mykologie 44(4): 212-219 (published: 26th November, 1990)
abstract
Spot tests and incubation detection methods were used to study extracellular oxidoreductases (tyrosinase, laccase, catalase, peroxidase, glucose-2-oxidase and diamine oxidase) in mycelial cultures of saprotrophic macromycetes (Basidiomycotina and Ascomycotina). Results from 19 species support their use in chemotaxonomy and for ecological studies.
KLÁN J., BAUDIŠOVÁ D. (1990): Enzyme activity of mycelial cultures of saprotrophic macromycetes (Basidiomycotina). I. Methods of hydrolases estimation. Česká Mykologie 44(4): 203-211 (published: 26th November, 1990)
abstract
A plate diffusion method was used to detect hydrolytic enzymes (lecithinaes, lipases, amylases, proteinases, milk clotting enzymes, urease) in mycelial cultures of saprotrophic macromycetes (Basidiomycotina). The results are demonstrated on 21 selected species. These tests can be used for screening high-yield strains and in chemotaxonomic studies.
KLÁN J., RULFOVÁ I. (1989): Antibiotic activity of cultures of some saprotrophic basidiomycetous fungi. Česká Mykologie 43(2): 85-95 (published: 2nd May, 1989)
abstract
The antibiotic activity against microorganisms Bacillus subtilis, Candida pseudotropicalis, Escherichia coli and Sarcina lutea was tested in 97 species of mycelial cultures (110 strains) from saprotrophic Basidiomycotina, using the diffusion plate method. Activity was found in 55.4% of strains. The study also included rare species previously not tested. Antibiotic activity is evaluated as a biochemical taxonomic feature.
KLÁN J., BAUDIŠOVÁ D., BENEŠ K. (1989): Cytochemical demonstration of enzymes in hyphae of mycelial cultures of macromycetes (Ascomycotina and Basidiomycotina). I. Esterases and glycosidases. Česká Mykologie 43(1): 30-35 (published: 6th February, 1989)
abstract
Esterases (carboxyl esterase, alkaline and acid phosphatases, aryl sulphatase) and glycosidases (α- and β-glucosidases, α- and β-galactosidases, β-xylosidase and β-glucuronidase) were found in hyphae of 19 mycelial cultures of 16 species of macromycetes by cytochemical methods in situ. The results were evaluated qualitatively at cellular level. α-glucosidase and β-galactosidase can be used for chemotaxonomical purposes.
KLÁN J., ŘANDA Z., BENADA J., HORYNA J. (1988): Investigation of non-radioactive Rb, Cs, and radiocaesium in higher fungi. Česká Mykologie 42(3): 158-169 (published: 12th August, 1988)
abstract
The concentration factors for non-radioactive Rb, Cs, and radiocaesium in the fruit bodies of mushrooms were determined. The difference between the concentration factors of non-radioactive and radioactive Cs from the last fallout was one order of magnitude. No significant differences were found between the concentration factors of stable Rb and Cs for mushrooms and vascular plants. The highest accumulation of radiocaesium was observed in Boletus spp., Laccaria spp., Paxillus involutus, Cortinarius armillatus, and Lactarius rufus. The contribution of older weapon-test fallout and the more recent 1986 Chernobyl fallout could be differentiated by isotopic ratio. The radiation dose from consumption of 10 kg fresh mushrooms did not exceed 20% of the dose from natural background radiation in Czechoslovakia.
KLÁN J. (1986): The calcium oxylate spherocrystals in mycelial culture of Phallus impudicus L.: Pers. Česká Mykologie 40(2): 95-98 (published: 10th May, 1986)
abstract
During the static cultivation of Phallus impudicus L.: Pers. (Phallales, Gasteromycetes), the calcium oxylate spherocrystals in the inflate hyphae were found. This phenomenon could contribute to more exact identification of the mycelal culture of the above mentioned species.
KLÁN J. (1984): The genus Xeromphalina (Tricholomataceae) in Europe. Česká Mykologie 38(4): 205-217 (published: 1984)
abstract
Three European species of Xeromphalina Kühn. et Maire ap. Konr. et Maubl. (X. cauticinalis, X. fellea, X. campanella) are treated; their descriptions, illustrations of macroscopic and microscopic features are given and a key is provided (also for X. cornui). Their taxonomic position, geographic distribution and ecology are discussed. X. cauticinalis is a new species for Czechoslovakia and X. fellea for Sweden and the U.S.A. Caucasian collection of X. fellea represents the fourth record for the U.S.S.R. X. cauticinalis var. acida O. K. Miller is synonymized with X. fellea.
KLÁN J. (1983): Melanoleuca iris in Czechoslovakia (Agaricales, Tricholomataceae). Česká Mykologie 37(1): 52-55 (published: 1983)
abstract
Melanoleuca iris Kühn. is reported for the first time from Czechoslovakia (Moravia). During Mycological Days in Moravia in 1981 a species of Melanoleuca was found by P. Vampola which was later identified as Melanoleuca iris Kühn. It has not been previously reported from Czechoslovakia and is only known from a few localities in Europe. Characteristics: distinctive agreeable odour recalling Iris (or Lepista irina or somewhat Clitocybe clavipes).
KLÁN J., KOTILOVÁ-KUBIČKOVÁ L. (1982): Macrofungi from the West Caucasus Part I. Aphyllophoraceous Fungi (Aphyllophorales, Basidiomycetes). Česká Mykologie 36(1): 20-39 (published: 1982)
abstract
The material on which the present study is based was collected on two botanical expeditions in 1976 and 1977. Both expeditions were directed to Teberdinskij zapovednik (nature reserve) in the West Caucasus, approximately 100 km south of Cerkessk in the Russian S. F. S. R. 86 macromycetes (Aphyllophorales) are recorded from this area; 18 species are reported for the first time from the Caucasus. A new taxon Polyporus brumalis (Pers.) ex Fr. var. nanus Klán is described. Phellinus hippophaëcola H. Jahn was collected in the Central and East Caucasus.
KUBIČKOVÁ L., KLÁN J. (1981): Notes on Mycena renati Quél., M. viridimarginata P. Karst. and M. luteoalcalina Sing. (Agaricales). Česká Mykologie 35(1): 32-43 (published: 1981)
abstract
Two lignicolous species of Agaricales, viz. Mycena renati Quél. and M. viridimarginata P. Karst., are discussed. In addition to the description, ecology and distribution in Czechoslovakia, results referring to the taxonomic position of M. luteoalcalina Sing. are also mentioned. Based on the authors’ study of the Singer’s type specimen, the species was identified with M. renati Quél. Thus the name M. luteoalcalina Sing. sensu Kühner is considered to be synonymous with M. viridimarginata P. Karst. The name M. alcalina (Fr.) Kumm. is proposed by the present authors to be rejected and listed as a rejected name in “Nomina rejicienda”.
MICKA K., KLÁN J. (1980): Chemical spot tests of macromycetes with benzidine. Česká Mykologie 34(2): 74-81 (published: 1980)
abstract
Macrochemical colour reactions of benzidine were studied mainly with the species of genera Agaricus, Amanita, Lactarius, Russula, and Tricholoma. With the genus Lactarius, differences were found between the reactions of the milk and the context. Oxidation enzymes, which give a blue-green, blue, or black reaction, were detected in many species of the genera Agaricus, Lactarius, and Russula, whereas with Amanita and most species of Tricholoma they were absent. In the case of the genus Russula, only species with a burning taste give a yellow or ochre reaction. The reactions of benzidine are suitable as complementary characteristics for the determination of some mutually similar species.
KLÁN J., KUBIČKOVÁ L. (1979): Arrhenia auriscalpium (Fr.) Fr., a new species in the mycoflora of the Soviet Union. Česká Mykologie 33(1): 40-46 (published: 1979)
abstract
Arrhenia auriscalpium (Fr.) Fr. (Agaricales) was collected at 3,200 m a.s.l. in the Caucasus in 1977. This important arctic-alpine species is new to the mycoflora of the Soviet Union. The paper provides a description, its distribution, and discusses systematic and ecological aspects.
KLÁN J. (1979): Clitocybe collina (Velen.) Klán, a characteristic species of dry non-sylvan communities. Česká Mykologie 33(1): 36-39 (published: 1979)
abstract
A new combination Clitocybe collina (Velen.) Klán (Agaricales) is proposed and described. Originally described as Cantharellus collinus Velen., this rare non-sylvan species is transferred to the genus Clitocybe based on morphological and ecological characteristics. The paper includes its description, habitat features, and known distribution in Europe.
KLÁN J. (1978): Flammulina ononidis Arnolds, ein besonderer Steppen-Samtfussrübling in der Tschechosliwakei. Česká Mykologie 32(4): 205-214 (published: 1978)
abstract
A new species of Flammulina from Czechoslovakia, Flammulina ononidis Arnolds, is described. It differs from Flammulina velutipes in larger spores and individual growth on the perennial herb Ononis spinosa L. The paper discusses the ecology and distribution of this species, first found in 1972 in the České středohoří region.
KLÁN J. (1978): Inonotus tamaricis (Pat.) Maire in Greece, its general distribution and taxonomic notes to the section Phymatopilus Donk. Česká Mykologie 32(1): 47-54 (published: 1978)
abstract
Inonotus tamaricis (Pat.) Maire, previously known only from three localities in Greece, is described and its distribution and taxonomy within the section Phymatopilus Donk are discussed. Taxonomic remarks are also presented on I. rheades, I. dryophilus and I. pseudohispidus.
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