| medical significance of the so-called black yeasts. | infections caused by the black yeasts (leveduras pretas) are reviewed with respect to their clinical manifestations, classification under the umbrella term, phaeohyphomycosis, and differentiation from chromoblastomycosis. data on the prevalence of black yeasts submitted to a national reference diagnostic center are provided. cases of phaeohyphomycosis caused by aureobasidium pullulans, exophiala jeanselmei, e. moniliae, e. spinifera, phaeoannelomyces werneckii, phaeosclera dematioides, sarcinomy ... | 1987 | 3301395 |
| sarcinomyces phaeomuriformis: a new dematiaceous hyphomycete. | sarcinomyces phaeomuriformis is described as a new species in the genus sarcinomyces lindner. currently, the taxon is known to occur only in japan as a causal agent of phaeohyphomycosis. the colonies are initially yeast-like, which on aging become dry, granular, heaped, friable and black. the initial growth consists of single cells which form multiple broad-based buds and by a successive budding process produce chains of blastoconidia. in its blastic conidiogenesis, s. phaeomuriformis resembles ... | 1986 | 3783362 |
| phylogenetic analysis of ten black yeast species using nuclear small subunit rrna gene sequences. | the nuclear small subunit rrna genes of authentic strains of the black yeasts exophiala dermatitidis, wangiella dermatitidis, sarcinomyces phaemuriformis, capronia mansonii, nadsoniella nigra var. hesuelica, phaeoannellomyces elegans, phaeococcomyces exophialae, exophiala jeanselmei var. jeanselmei and e. castellanii were amplified by pcr and directly sequenced. a putative secondary structure of the nuclear small subunit rrna of exophiala dermatitidis was predicted from the sequence data. alignm ... | 1995 | 8526477 |
| exophiala dermatitidis and sarcinomyces phaeomuriformis: its1-sequencing and nutritional physiology. | the internal transcribed spacer 1 (its1) sequences of the nuclear rrna gene (approximately 200 bp) of 33 strains of the exophiala dermatitidis complex were determined; two similar species were added for comparison. a core group (i), including the type strain cbs 207. 35, contained 20 identical strains which had previously been found to have introns in their small sub-unit (ssu) rdna. eleven remaining strains identified as e. dermatitidis (groups ii-v) differed from the core group in 1-4 nucleoti ... | 1998 | 9776827 |
| high prevalence of the neurotrope exophiala dermatitidis and related oligotrophic black yeasts in sauna facilities. | the black yeast exophiala dermatitidis, an agent of fatal brain infections in east asia, is common in european steam baths. the related fungi sarcinomyces phaeomuriformis and exophiala mesophila were isolated from locations in these complexes with lower ambient temperature and/or moisture. the latter two species had dry, rather than slimy, colonies and lower maximum growth temperatures (38 degrees c, 32 degrees c) than e. dermatitidis (42 degrees c). exophiala dermatitidis produces abundant extr ... | 2002 | 12421284 |
| molecular diversity of oligotrophic and neurotropic members of the black yeast genus exophiala, with accent on e. dermatitidis. | analysis of its rdna of the black yeast exophiala dermatitidis revealed a close phylogenetic relationship to the meristematic fungus sarcinomyces phaeomuriformis. as most strains of s. phaeomuriformis have a yeast-like phenotype corresponding to the anamorph genus exophiala, a new combination in exophiala is proposed. on the basis of its sequence, m-13 fingerprint and ssu intron data, two main entities could be distinguished within e. dermatitidis. one of these (b) contained prevalently strains ... | 2003 | 12777065 |