Ecology and phylogeny of black yeast-like fungi: diversity in unexplored habitats

Species diversity and polymorphism in the Exophiala spinifera clade containing opportunistic black yeast-like fungi.

A monophyletic group of black yeast-like fungi containing opportunistic pathogens around Exophiala spinifera is analyzed using sequences of the small-subunit (SSU) and internal transcribed spacer (ITS) domains of ribosomal DNA. The group contains yeast-like and annellidic species (anamorph genus Exophiala) in addition to sympodial taxa (anamorph genera Ramichloridium and Rhinocladiella). The ne...

Diversity, Ecology, and Systematics of Smut Fungi

onychomycosis due to yeast and yeast-like fungi

onychomycosis due to the yeast and yeast-like fungi was investigated among the 147 patient who refered to the mycology laboratory of school of public health during the period of 11 months. the isolated yeasts and yeast-like fungi were examined by api auxanogram methed. the distribution of isolated microorganisms were c. tropicalis 10(7.4%), c.guillioimondii & (5.9%) cases and one case of each o...

Black fungi in lichens from seasonally arid habitats

We present a phylogenetic study of black fungi in lichens, primarily focusing on saxicolous samples from seasonally arid habitats in Armenia, but also with examples from other sites. Culturable strains of lichen-associated black fungi were obtained by isolation from surface-washed lichen material. Determination is based on ITS rDNA sequence data and comparison with published sequences from othe...

The influence of ortho- and para-diphenoloxidase substrates on pigment formation in black yeast-like fungi

Dothideaceous black yeast-like fungi (BYF) are known to synthesise DHN-melanin that is inhibited by the systemic fungicide tricyclazole. The final step of the DHN melanin pathway is the conjoining of 1,8-DHN molecules to form the melanin polymer. There are several candidate enzymes for this step, including phenoloxidases such as tyrosinase and laccases, peroxidases, and perhaps also catalases. ...