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  • black yeasts  (12)
  • Pringsheimia  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Coenzyme Q systems in ascomycetous black yeasts (1989)
    Springer
    Antonie van Leeuwenhoek 56 (1989), S. 349-356 
    Details
    ISSN: 1572-9699
    Keywords: coenzyme Q ; ubiquinones ; black yeasts ; Exophiala ; Aureobasidium ; Hormonema ; yeast-like fungi ; ascomycetes ; taxonomy ; chemotaxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract 72 Strains belonging to 44 species of ascomycetous black yeasts were analyzed for their coenzyme Q systems. Prevalent were Q-10 and dihydrogenated Q-10 systems. Members of the Dothidealean suborder Dothideineae have Q-10 (H2), while those belonging to the suborder Pseudosphaeriineae mostly have Q-10. The anamorph genus Exophiala Carmichael and the teleomorph genus Capronia Sacc. seem to be heterogenous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00443748
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Capnobotryella renispora on roof tile (1990)
    Springer
    Antonie van Leeuwenhoek 58 (1990), S. 265-269 
    Details
    ISSN: 1572-9699
    Keywords: black yeasts ; Capnobotryella renispora ; ecology ; sooty moulds ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Capnobotryella renispora J. Sugiyama is described from a specimen on roof tile and in culture. Its relationship with the black yeasts is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399338
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Karyology and hyphal characters as taxonomic criteria in Ascomycetous black yeasts and related fungi (1991)
    Springer
    Antonie van Leeuwenhoek 60 (1991), S. 35-42 
    Details
    ISSN: 1572-9699
    Keywords: black yeasts ; Aureobasidium ; Hormonema ; Hortaea ; Ramichloridium ; Zasmidium ; karyology ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Mycelial development of seventy-three strains of black yeasts and related fungi were studied, and numbers of nuclei per hyphal cell were counted. Two main patterns were apparent in expanding hyphae, viz. (1) uninucleate expanding hyphal cells, septum formation strictly following mitosis, and (2) multinucleate, branched, aseptate hyphal tips, septa being formed in a later stage, leading to oligo- or uninucleate mature cells. Characteristic genera in the two groups areExophiala andAureobasidium, respectively. InZasmidium and in someRamichloridium species all mycelial cells are oligonucleate. The character is indicative for relationships at the family level in black yeasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580439
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Nutritional pattern and eco-physiology ofHortaea werneckii, agent of human tinea nigra (1992)
    Springer
    Antonie van Leeuwenhoek 62 (1992), S. 321-329 
    Details
    ISSN: 1572-9699
    Keywords: Hortaea werneckii ; black yeasts ; tinea nigra ; medical mycology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The life cycle ofHortaea werneckii includes yeast-like, hyphal and meristematic growth. The preponderance of each form of propagation can be influenced by environmental conditions. The clinical entity ‘tinea nigra’ is explained by ecological similarities between supposed natural niches and human hyperhydrotic skin. The species is recognizable by assimilation of lactose, nitrate and nitrite, no or little growth with L-lysine, cadaverine, creatine and creatinine, and tolerance of 10% NaCl. It generally does not grow at 36°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572601
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  • 5
    Electronic Resource
    Electronic Resource
    Evolution of black yeasts: possible adaptation to the human host (1993)
    Springer
    Antonie van Leeuwenhoek 63 (1993), S. 105-109 
    Details
    ISSN: 1572-9699
    Keywords: black yeasts ; dimorphism ; ecology ; ecophysiology ; evolution ; halotolerance ; medical mycology ; melanin ; meristematic growth ; opportunistic fungi ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Ascomycetous black yeasts show adaptations to a wide array of environmental conditions. Dothideaceous black yeasts are mostly found on plant leaves, while among herpotrichiellaceous species there are numerous opportunists on humans. Factors which are of ecological significance include the presence of melanin and carotene, formation of thick cell walls and meristematic growth, presence of yeast-like phases, presence of additional forms of conidiogenesis, thermo- and osmotolerance, adhesion, hydrophobicity, production of extracellular polysaccharides, siderophores and acidic or alkaline secondary metabolites. The potential pathogenicity of a species is partly determined by its natural ecological niche. Dothideaceous black yeasts are osmotolerant rather than pathogenic. Herpotrichiellaceous black yeasts probably have low competitive ability and are found in rather special niches as secondary saprophytes, e.g., on bacterial mats, on other fungi or in poor environments. Some species possibly utilize animal vectors for dispersal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00872386
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  • 6
    Electronic Resource
    Electronic Resource
    Nutritional physiology and selective isolation ofExophiala dermatitidis (1993)
    Springer
    Antonie van Leeuwenhoek 64 (1993), S. 17-26 
    Details
    ISSN: 1572-9699
    Keywords: Exophiala ; Wangiella ; black yeasts ; taxonomy ; physiology ; chromoblastomycosis ; cystic fibrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The nutritional physiology of ten strains ofExophiala dermatitidis was investigated. The growth reactions to lactose, citrate, nitrate, nitrite, lysine, creatine and creatinine differ from those found in closely related black yeasts. In addition, it is the onlyExophiala species which is able to grow at 40° C. A selective medium containingmeso-erythritol as sole carbon source was evaluated. This medium is particularly useful for the isolaton of black yeasts from lungs of patients with cystic fibrosis as well as from the environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00870917
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  • 7
    Electronic Resource
    Electronic Resource
    PCR-ribotyping of type isolates of currently acceptedExophiala andPhaeococcomyces species (1995)
    Springer
    Antonie van Leeuwenhoek 68 (1995), S. 35-42 
    Details
    ISSN: 1572-9699
    Keywords: black yeasts ; Exophiala ; Wangiella ; Phaeococcomyces ; PCR-ribotyping ; RFLP ; PCR ; ribosomal repeat ; taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Portion of the ribosomal repeat of the type strains of the generaExphiala andPhaeococcomyces were subjected to RFLP analysis. The amplicon length of the small subunit rRNA, the fragment NS1-NS24, was found to vary between 1800 to 3200 nucleotides. In contrast, the length of the fragment ITS1-ITS4 comprising the internal transcribed spacers (ITS1 and ITS2) was found to be constant at 600 nucleotides. Analysis of restriction profiles confirmed the synonymy ofExophiala dermatitidis andMycotorula schawii. Torula bergeri andSporotrichum gougerotii were found to be identical toPhaeoannellomyces elegans, but different from their alleged synomymE. castellanii. A phenogram is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00873290
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  • 8
    Electronic Resource
    Electronic Resource
    Nutritional physiology of type isolates of currently accepted species ofExophiala andPhaeococcomyces (1995)
    Springer
    Antonie van Leeuwenhoek 68 (1995), S. 43-49 
    Details
    ISSN: 1572-9699
    Keywords: taxonomy ; physiology ; black yeasts ; Herpotrichiellaceae ; Capronia ; Exophiala ; Nadsoniella ; Phaeoannellomyces ; Phaeococcomyces ; Sarcinomyces ; Wangiella
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Nutritional physiological and tolerance tests were performed for all type strains of species currently classified in the black yeast generaExophiala andPhaeococcomyces, including some additional type strains of taxa recently reidentified asExophiala species. Most describedExophiala species can be distinguished by physiological characters.Exophiala jeanselmei with its varieties, andE. castellanii should all be retained as separate taxa. The pairs of strainsMycotorula schawii/Exophiala dermatitidis, Hormodendrum negronii/Exophiala jeanselmei var.lecaniicorni andSporotrichum gougerotii/Torula bergeri were found to be conspecific. Phenetic analyses of physiological data support the identity ofPhaeococcomyces exophialae as a yeast-like synanamorph ofExophiala spinifera. The taxonomic positions of the generaNadsoniella, Phaeoannellomyces andWangiella are discussed. The generaExophiala andPhaeococcomyces are unrelated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00873291
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Intraspecific variability and exopolysaccharide production inAureobasidium pullulans (1995)
    Springer
    Antonie van Leeuwenhoek 68 (1995), S. 57-63 
    Details
    ISSN: 1572-9699
    Keywords: Aureobasidium ; Hormonema ; black yeasts ; PCR-ribotyping ; UP-PCR ; exopolysaccharides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Forty seven strains of the black yeasts,Aureobasidium pullulans andHormonema dematioides, and the type strain ofHormonema macrosporum were examined using PCR-ribotyping and universally primed PCR with subsequent hybridization. Four groups (populations) were distinguished withinA. pullulans with PCR-ribotyping, which largely coincided with UP-PCR/hybridization groups. The UP-PCR technique revealed a greater degree of heterogeneity between the groups studied. Five strains identified asHormonema dematioides on the basis of physiological and morphological data formed a group recognizable with PCR-ribotyping and UP-PCR/hybridization, which also includedH. macrosporum. Aureobasidium pullulans is characterized by the absence of RsaI restriction sites in rDNA amplified with primers 5.8S-R and LR7, whileHormonema species possessed several bands after RsaI digestion. For analysis of distance between populations, PCR-ribotyping with AluI and MspI is sufficient. Strains ofA. pullulans produce exopolysaccharides in liquid media with different nitrogen sources, while the strains ofHormonema synthesize minor amounts of polysaccharides in media with peptone. Populations ofA. pullulans differ slightly from each other in their optimal, medium-dependent production of polysaccharides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00873293
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  • 10
    Electronic Resource
    Electronic Resource
    Distinction of species in Aureobasidium and related genera by PCR-ribotyping (1996)
    Springer
    Antonie van Leeuwenhoek 69 (1996), S. 323-329 
    Details
    ISSN: 1572-9699
    Keywords: black yeasts ; Dothideaceae ; Aureobasidium ; Kabatiella ; Hormonema ; Selenophoma ; dothiora ; Pringsheimia ; taxonomy ; PCR-ribotyping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Taxonomic markers for differentiation of the anamorph genera Aureobasidium, Hormonema and Kabatiella were developed using PCR-ribotyping with the primers 5.8S-R and LR7 for amplification and the restriction enzymes Alul, DdeI, Hhal, MspI and RsaI for digestion. Aureobasidium and Hormonema are optimally differentiated with MspI; DdeI is particularly useful to distinguish aureobasidium, Kabatiella and Selenophoma. Relationships of the anamorph genera Aureobasidium, Hormoneng and Kabatiella with the teleomorph genera Pringsheimia and Dothiora are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399621
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    Paper (German National Licenses)
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