Affiliation:
1. School of Life Sciences, Arizona State University, Main Campus, Tempe, AZ-85287-4501, USA
Abstract
A novel black yeast-like fungus,Exophiala crusticola, is described based on two closely related isolates from biological soil crust (BSC) samples collected on the Colorado Plateau (Utah) and in the Great Basin desert (Oregon), USA. Their morphology places them in the anamorphic genusExophiala, having affinities to the familyHerpotrichiellaceae(Ascomycota). Phylogenetic analysis of their D1/D2 large subunit nuclear ribosomal RNA (LSU nrRNA) gene sequences suggests that they represent a distinct species. The closest known putative relative toExophiala crusticolaisCapronia coronataSamuels, isolated from decorticated wood in Westland County, New Zealand. The holotype forExophiala crusticolaanam. nov. is UAMH 10686 and the type strain is CP141bT(=ATCC MYA-3639T=CBS 119970T=DSM 16793T). Dark-pigmented fungi appear to constitute an important heterotrophic component of soil crusts andExophiala crusticolarepresents the first description of a dematiaceous fungus isolated from BSCs.
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
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