Search results (Index filtered)

Search for "SACCHAROMYCES|cerevisiae": 33 articles found in Index.

FRAGNER P. (1985): Keys for identification of yeasts from human material according to new points of view.  Česká Mykologie 39(4): 234-242   (published: 8th November, 1985)
  abstract   Identification keys were presented for 46 yeasts from human material in this country. Based on the author's own cultures and experience, they conform with the modern monograph by Kreger-van Rij et al. Some new trends and issues in yeast diagnostics are also addressed.

FRAGNER P. (1978): Yeasts in human material in our country and their differentiation. Part III.  Česká Mykologie 32(3): 144-156   (published: 1978)
  abstract   A diagnostic system for the determination of yeasts occurring in human material in our territory is presented. The first part (I) (Ces. Mykol. 32 (1): 32–42, 1978) contained the following paragraphs: Introduction, Material and Methods, Laboratory Studies and Nutrient Media, Survey of the Species, Incidence and Distribution, Key. The second part (II) (Ces. Mykol. 32 (3): 129–143, 1978) contained a detailed characteristics of several species of the genus Candida Berkhout. This part, the third of the series (Part III), contains a characteristics of several species of the genera Cryptococcus Kutzing emend. Vuillemin, Geotrichum Link ex Pers., Kloeckera Janke, Kluyveromyces van der Walt, Rhodotorula Harrison, Saccharomyces (Meyen) Reess and Sporobolomyces Kluyver et van Niel. The descriptions are based on the culture forms occurring in our country. Macroscopic and microscopic appearance, auxanograms, zymograms, growth at 37 °C, data on the pathogenicity for humans and animals as well as these on the origin of the cultures, etc. are given.

FRAGNER P. (1978): Yeasts in human material in our country and their differentiation. Part I.  Česká Mykologie 32(1): 32-42   (published: 1978)
  abstract   A diagnostic system for the determination of yeasts occurring in human material on our territory is presented. It summarizes our experiences gained with more than 15,000 cultures during the last 20 years. According to our procedures it is possible to fairly exactly determine approximately 98% of yeasts within 48 hours or earlier, presuming that pure cultures are at hand. The key is based primarily on assimilation of glucose, galactose, sucrose, maltose and lactose, potassium nitrate assimilation, and macroscopic and microscopic appearance of the cultures. Some groups also use auxanograms of additional carbon sources and zymograms.

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).

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 - II", Olomouc, Czech Republic, September 5th–6th, 2002.  Czech Mycology 55(1-2): 103-149   (published: 23rd July, 2003)
  abstract   The colloquium was a continuation of a previous scientific meeting that took place in Olomouc in 1999 (Czech Mycology 52: 139-178, 2000). It was organised by the joint 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 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: biochemistry, biotechnology and genetics of fungi; phytopathogenic fungi; fungi pathogenic to humans and animals; and mycology of food and mycotoxins. Each topic was opened with a plenary lecture (30 min.), followed by short communications (10 min.) and accompanied by poster presentations. Besides five plenary lectures, 20 short communications and 24 posters were presented. In total 42 researchers took part in the colloquium and discussed various topics important for the further direction of experimental mycology. Abstracts of the contributions are given here.

KHAN M.R., SAHA M.L., ANISUZZAMAN M., SLÁVIKOVÁ E. (2002): Yeasts isolated from the lakes of Dhanmondi and Ramna, Bangladesh.   [yeast community, occurrence, lake water, Bangladesh]  Czech Mycology 53(3): 223-228   (published: 10th January, 2002)
  abstract   The occurrence of yeasts in the water of two lakes located in Dhaka City over a period from September to December 1999 was investigated. The number of yeasts of lake Dhanmondi and Ramna ranged from 9.5X10⁴ to 35X10⁴ and 2.3X10⁴ to 11X10⁴CFU/l, respectively.The isolated yeast strains belonged to 5 species: Saccharomyces cerevisiae, Rhodotorula glutinis, Rhodotorula mucilaginosa, Debaryomyces hansenii var. fabryi and C and ida suecica. The maximum number of yeasts was found to be 3 times higher in the water samples of Dhanmondi lake than that of Ramna lake. The higher number of yeasts was correlated with the temperature of the water and with pH values.

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.

SLÁVIKOVÁ E., VADKERTIOVÁ R. (1995): Yeast population in the water of a polluted fish-pond.   [Yeast population, polluted fish-pond, Slovakia]  Czech Mycology 48(2): 145-154   (published: 25th September, 1995)
  abstract   The present paper reports the results of a qualitative and quantitative investigation of yeast populations isolated from the water of one fish-pond near Bratislava. Quite a number of fish have perished from disease in this pond. Eighteen different yeast species with various cell densities were identified from one hundred and fifteen water samples. Aureobasidium, Sporobolomyces, Trichosporon, Candida and Cryptococcus species occurred most frequently. The yeast populations of autumn and summer samples are compared. The total yeast count was 11 times higher in autumn than in summer. The distribution and densities of Trichosporon cutaneum, Geotrichum candidum, and to a certain degree of some species of the genus Candida, indicate the predominance of yeasts typical of a polluted aquatic environment.

KOCKOVÁ-KRATOCHVÍLOVÁ A., SLÁVIKOVÁ E., KOVAČOVSKÁ R. (1988): Yeasts isolated from fruitbodies of mushrooms of the Lowland of Záhorie (Slovakia).  Česká Mykologie 42(2): 114-121   (published: 10th May, 1988)
  abstract   In 1984 yeasts were isolated from the surface of mushroom fruitbodies collected on the Lowland of Záhorie. Thirty-nine strains were isolated from 95 samples, 24 from fruitbodies and 15 from their environment. Similarities in physiological properties of repeatedly isolated strains from certain genera of forest fungi were studied. The species variability had unequal distribution, but sometimes identical species were found repeatedly on the same host genera.

FRAGNER P., KUNZOVÁ E. (1987): The problem of reliability of microscopic demonstration of yeasts in smears.  Česká Mykologie 41(1): 46-49   (published: 16th February, 1987)
  abstract   Production of milk-clotting enzymes was determined in 55 out of the 91 tested species of Basidiomycetes. The ratio between milk-clotting and proteolytic activity was assayed in 18 species. The most suitable ratio of the two activities was found in Phellinus chrysoloma and Kuehneromyces mutabilis.

BETINA V. (1986): Fungi in biotechnology-history, present times, perspectives.  Česká Mykologie 40(2): 65-73   (published: 10th May, 1986)
  abstract   A review of applications of fungi in biotechnology from the old ages to the present times is presented. Origins of vine and beer fermentation as well as leavened bread making are lost in the mist of antiquity and records of the production of Roquefort cheese go back about a thousand years. On the other hand, commercial production of yeast began in the last century and the production of single-cell proteins (SCP) was born in our century. Nowadays, fungi are further used in commercial production of enzymes, organic acids, vitamins, antibiotics and plant growth regulators, in biotransformations of steroids and antibiotics, in the ephedrin synthesis and in preparation of other pharmacologically useful substances. Great achievements were obtained by applying classical genetic methods. Possibilities of the use of protoplast fusion and recombination, gene amplification or recombinant DNA technology using restriction enzymes are discussed.

Seminar on „Morphogenesis of Fungi“, Olomouc, May 31, 1984.  Česká Mykologie 40(1): 52-58   (published: 7th February, 1986)

FRAGNER P., SOUKUP K. (1985): Contemporary views on mycotic colpitis.  Česká Mykologie 39(2): 106-118   (published: 1985)
  abstract   During a mycological excursion in 1973 near Sadská (district Nymburk), Inocybe phaeoleuca Kühner was found in large numbers in sandy pine forest. According to mycologist J. Veselský, this was the first reliable record for Czechoslovakia. Description of macroscopic and microscopic features is included.

KOCKOVÁ-KRATOCHVÍLOVÁ A., RONALDO CONTRERAS O. (1985): Yeast-like organisms isolated form plant material on Cuba.  Česká Mykologie 39(1): 44-50   (published: 1985)
  abstract   In 1981, yeast-like organisms were for the first time studied from plant material in Cuba. From 80 samples, 62 isolates were obtained and categorized into six groups: smut-like organisms, apiculate yeasts, Candida and Torulopsis, Rhodotorula, Aureobasidium, and various others. All isolates grew at 42°C and produced a broad spectrum of hydrolytic enzymes.

KOCKOVÁ-KRATOCHVÍLOVÁ A., ŠVORCOVÁ L., BREIEROVÁ E., DELGADO R. (1984): Taxonomic characteristics of yeasts isolated from bath facilities.  Česká Mykologie 38(1): 11-20   (published: 1984)
  abstract   This paper deals with the taxonomy and identification of yeasts and yeast-like organisms isolated from West-Bohemian bath facilities, as bath pools and their environments. The ecological, hygienical and sanitary aspects will be introduced elsewhere. This study follows the previous paper of Švorcová (1982).

FRAGNER P., MICHÁLKOVÁ B. (1982): Is there a professional hazard of yeast incidence in stomatologic personnel?  Česká Mykologie 36(4): 243-247   (published: 1982)
  abstract   In the oral cavity of stomatological personnel, yeast colonization was found in 46.0% and Candida albicans in 33.0% of individuals — less than in the general population. C. albicans was least frequent in female doctors (24.2%), more frequent in nurses (30.6%), and highest in technicians (45.2%). Nurses with C. albicans had worked an average of 12 years in the field, while those without the yeast had worked 23 years. Interestingly, C. albicans appeared more often in younger individuals, contrary to trends in the general population. The study concludes no professional colonization risk exists.

FRAGNER P., ŠKOPEK J. (1982): Incidence of yeasts in the mouth cavity in person with removable dentures.  Česká Mykologie 36(3): 166-172   (published: 1982)
  abstract   Coprinus laanii Kits van Waveren is described with its cap initially egg-shaped or ellipsoid, later bell-shaped, 5–10 mm high, 3–8 mm wide, and finally nearly flat. Initially white and covered with fine greyish powder, the cap becomes striated and torn at maturity. Gills are white to almost black, narrow, and not crowded. The stem is 10–30 mm long, 1–2 mm thick, white with greyish powder that later falls off. Spores are 10–14 × 7.5–8.5 µm with thick irregular perispore and ornamentation of transverse ridges. The veil is composed mainly of spherical or broadly ellipsoid cells. This fungus was recorded as a new finding in Czechoslovakia.

BENDA J., FRAGNER P. (1982): Problems of chronic candida tonsillitis in children.  Česká Mykologie 36(2): 122-127   (published: 1982)
  abstract   In a study of children, Candida albicans was found in 42.7% of oral swabs. Chronic tonsillitis due to yeasts occurred in 3%. Tonsillectomy is considered optimal treatment.

FRAGNER P., PREISLER M. (1982): Incidence of yeasts in the mouth cavity of patients with parodontopathias.  Česká Mykologie 36(1): 52-56   (published: 1982)
  abstract   In patients suffering from some parodontopathies and diseases of the mouth cavity mucosa (most frequently parodontitis and gingivitis), yeasts were found in the mouth (on the tongue, teeth or gingivae) in 43.8% of cases, Candida albicans in 29.2% individuals. These percentages are strikingly lower than in the healthy population. Abundant or massive yeast findings (including Candida albicans) appeared only in parodontitis. The gingivae can sometimes be a wholly independent, isolated source. All yeast findings are given both qualitatively and quantitatively.

FRAGNER P., HEJZLAR J. (1981): Yeasts flora of the tonsills.  Česká Mykologie 35(4): 227-233   (published: 1981)
  abstract   Yeasts (including Candida albicans) in the mouth cavity (on the tongue and/or on the tonsills) were found in 60.0% individuals, Candida albicans (alone or in combination with other yeasts) in 43.5% individuals. In most cases the yeast flora of the tonsills was identical with that of the tongue, only in 5.8% it was species different. Tonsills as a probable yeast source (judging from a larger number of germs or different species than that on the tongue) were found in 6.8% individuals. Possible connections between yeast incidence and clinical picture of the tonsills and tongue, general health condition, administration of antibiotics and several other circumstances were followed.

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.

MUSÍLEK V. (1981): Enzymatic activity of cultures of Basidiomycetes. A short survey.  Česká Mykologie 35(4): 196-208   (published: 1981)
  abstract   The paper brings a survey of present information about production of enzymes by the cultures of Basidiomycetes. The enzymes are considered from the aspect of their role in natural conditions, the theoretical significance of this study and their possible use in praxis.

FRAGNER P. (1981): Further experience with Castellani’s „Water cultures“.  Česká Mykologie 35(3): 161-164   (published: 1981)
  abstract   Microscopic fungi survive in sterile, distilled water at laboratory temperature for various lengths of time, from less than 11 months (Kloeckera apiculata) to more than 11 years (Sporothrix schenckii). The survival times of some species as well as their spontaneous variability are given. Castellani’s “water cultures” are only an emergency solution for maintaining live collections. Some yeast species which are morphologically or biochemically similar have also similar survival times in water.

FRAGNER P., ŠIMKOVÁ M. (1980): Yeasts in children.  Česká Mykologie 34(2): 82-91   (published: 1980)
  abstract   Altogether 400 children in the age of 0–8 years, hospitalized because of various diseases, were examined. Yeasts were demonstrated in 58.3% children in the tongue, buccal mucosa, tonsils or rectal swabs. Lists of the species found at different localizations are given. Candida albicans (alone or in combination with other yeasts) was found in altogether 47.5% patients; on the tongue in 41.8%, on the buccal mucosa in 38.3%, on the tonsils in 50.8% and in the rectum in 20.3%. With respect to the findings of C. albicans in rectal swabs there exists a rule that C. albicans is nearly always present in the mouth as well. Mouth findings need not be accompanied by findings in the rectum. Clinical picture of soor in the mouth cavity was observed in 1.5% children only. Possible connections between the incidence of yeasts and various clinical changes were followed. Especially important are the findings of yeasts in connection with the general health condition of the children: in the group with abundant and massive C. albicans findings most children are in poor health condition, on the other hand least of them are in good health state; in the group of children with negative mycological findings the situation is reversed. Likewise, a connection is observed between yeast presence and repeated or long-term hospitalization: children with positive mycological findings are more frequently repeatedly or long-term hospitalized than those with negative findings. In the group of children with negative or incidental findings, the highest number had not been ill so far. A possible correlation is also seen between the yeast occurrence and the administration of broad-spectrum antibiotics; however, one must not forget that such antibiotics are usually given to patients in poor health.

FRAGNER P., HEJZLAR J., RUBEŠ M. (1979): Otomycoses and mycoflora of otitides.  Česká Mykologie 33(4): 229-236   (published: 1979)
  abstract   With one third of the patients suffering from otitis there occur microscopic fungi in the ear swabs, but they can be considered agents of the disease in approximately one half of the positive findings only. During the last 15 years, fungi were cultivated from the ear swabs of 472 patients with various ear diseases, mostly otitis externa. The most frequent yeasts in otomycoses were Candida parapsilosis and C. albicans, while the most frequent Aspergillus species were A. fumigatus, A. flavus, and A. niger. Clinical pictures and treatment of some external otitides are briefly mentioned.

MUSÍLKOVÁ M., MUSÍLEK V., ŠAŠEK V. (1975): Release of yeast spheroplasts by an enzyme complex from Lycoperdon perlatum Pers. ex Pers.  Česká Mykologie 29(3): 153-156   (published: 1975)
  abstract   Fruit bodies of some Basidiomycetes, e.g. Lycoperdon periatum, contain enzymes capable of destroying cell walls of yeasts and filamentous fungi, thereby releasing spheroplasts. A lyophilized enzyme preparation from L. periatum remained active over long storage in cold. The study elaborates on the potential of lytic enzyme complexes from higher fungi for degrading the cell walls of viable yeast cells.

FRAGNER P., HEROLD K. (1971): Candida-Paronychien und Candida-Onychomykosen. Auftreten, Mykologie und Therapie.  Česká Mykologie 25(1): 47-54   (published: 28th January, 1971)
  abstract   A study of 45 patients with Candida paronychia and onychomycosis explored disease occurrence, etiology, and therapy. The authors examined mycological findings and evaluated treatment methods. Questions addressed include influences of age, duration of disease, causative agents, and recurrence.

KOCKOVÁ-KRATOCHVÍLOVÁ A., ŠMARDA F., POKORNÁ M. (1965): Ein Beitrag zur Ökologie der hefeartigen Mikroorganismen. Die hefeartigen Mikroorganismen auf der oberfläche der höheren Pilze aus dem Böhmisch-Mährischen Höhenzug und aus dem Brünner Bergland in Mähren.  Česká Mykologie 19(2): 114-120   (published: 1965)
  abstract   The authors isolated yeast-like microorganisms from the surface of fruitbodies of higher fungi collected in the forests of the Bohemian-Moravian Highlands and the Brno Uplands in 1962. Among 119 isolated strains, 12 were identified as Aureobasidium pullulans. Of the remaining 107 strains, 48.59% belonged to Candida, 29.9% to Torulopsis, 18.69% to Rhodotorula, and 2.8% to sporogenic yeasts. These organisms exhibit features typical of primitive species.

FRÁGNER P. (1960): Ein Beitrag zur Variabilität Candida robusta Diddens et Lodder.  Česká Mykologie 14(3): 152-157   (published: 20th July, 1960)

FRÁGNER P. (1960): Mykoflora des Flaschenbiers.  Česká Mykologie 14(1): 52-59   (published: 20th January, 1960)

FRÁGNER P. (1959): Zur Mykoflora des Flaschenbiers.  Česká Mykologie 13(4): 227-233   (published: 20th October, 1959)

FRÁGNER P. (1959): Pathogene Hefen in der Milchindustrie.  Česká Mykologie 13(3): 160-163   (published: 20th July, 1959)

Back to "SACCHAROMYCES|cerevisiae" (Index view)



-----------------
job done in 0.046 sec.