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Search for "DEBARYOMYCES|hansenii": 10 articles found in Index.

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.

PARVEEN S., WANI A.H., BHAT M.Y., KOKA J.A. (2016): Biological control of postharvest fungal rots of rosaceous fruits using microbial antagonists and plant extracts - a review.   [biological control, postharvest diseases, microbial pesticides, rosaceous fruits]  Czech Mycology 68(1): 41-66   (published: 1st February, 2016)
  abstract   This article aims to give a comprehensive review on the use of microbial antagonists (fungi and bacteria), botanicals and compost extracts as biocontrol agents against different pathogenic fungi causing postharvest fungal rots in rosaceous fruits which shows that they can play an important role in the biomanagement of fungi causing rot diseases. Plant extracts reported in the literature against pathogenic fungi indicate that they can act as a good biological resource for producing safe biofungicides. However most of the work has been done under experimental conditions rather than field conditions. There is still a need for research to develop suitable formulations of biofungicides from these microbial biocontrol agents and plant extracts. The review reveals that extensive ecological research is also required in order to achieve optimum utilisation of biological resources to manage various postharvest diseases of fruits.

SLÁVIKOVÁ E., VADKERTIOVÁ R. (2003): The occurrence of yeasts in grass-grown soils.   [yeast community, totalyeast counts, Slovakia, grass-grown soil]  Czech Mycology 54(3-4): 239-247   (published: 23rd May, 2003)
  abstract   One hundred and fifty six yeast strains were isolated from 160 grass-grown soil samples collected in four different localities in Bratislava, Slovakia. The collection of soil took place in March, May, August, and October. Cryptococcus laurentii, C. albidus, Cyst of ilobasidium capitatum, Sporobolomyces salmonicolor, and Trichosporon cutaneum were the most frequently isolated species from the samples taken in the unpolluted localities Rusovce and Dúbravka. These species represented 92.1 % of totalyeast counts found in these soil samples. Cryptococcus laurentii, C. albidus, Cystofilobasidium capitatum, Debaryomyces castellii, and Rhodotorula glutinis were the most frequently isolated species from the samples taken in the polluted localities Polianky and Mlýnská Dolina. These species represented 93.3 % of total yeast counts there . Yeast densities ranged from 400 to 80.000CFU/g soil. We found that yeasts occurred unevenly in soils during the year. The lowest average number of yeasts was found in August and the highest one in May.

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.

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.

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).

SLÁVIKOVÁ E., KOCKOVÁ-KRATOCHVÍLOVÁ A. (1980): The yeasts of the genus Debaryomyces transferred by insects on the lowlands of Záhorie.  Česká Mykologie 34(1): 21-28   (published: 1980)
  abstract   Fifty-three strains of the genus Debaryomyces were isolated from the surface of Formica rufa ants in nine areas of the Záhorie lowlands. All strains were identified as Debaryomyces cantarellii Capriotti, although they showed high intraspecific variability. Based on numerical taxonomy, two ecotypes were determined. Ants were collected near anthills, and yeast strains were isolated using wort agar. The study also reviews previous work on yeasts from plant material and insects.

FRAGNER P. (1978): Yeasts in human material in our country and their differentiation. Part IV.  Česká Mykologie 32(4): 235-245   (published: 1978)
  abstract   A diagnostic system for the identification of yeasts in human material is presented. Part IV of this series describes several species from the genera Torulopsis and Trichosporon. The article discusses limitations of the rapid method and current challenges in yeast identification.

FRÁGNER P., MÚČKA V. (1966): Rubronigrin, new antibiotic substance from Trichophyton rubrum var. nigricans.  Česká Mykologie 20(3): 182-183   (published: 1966)
  abstract   Black-pigmented cultures of Trichophyton rubrum var. nigricans produce an antibiotic called rubronigrin. Effective extraction and purification methods are described. The substance is effective against a broad range of fungi including Cryptococcus, Candida, Aspergillus, Mucor, and others.

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