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Stud Mycol. 2008;61:131-6. doi: 10.3114/sim.2008.61.13.

Coniosporium epidermidis sp. nov., a new species from human skin.

Author information

1
Peking University Third Hospital, Beijing, China.

Abstract

Coniosporium epidermidis sp. nov. is described from a superficial skin lesion with blackish discolouration in an 80-yr-old Chinese patient. The species produces dark, thick-walled, inflated, reluctantly liberating arthroconidia without longitudinal septa. Sequences of the ribosomal operon, as well as of the translation elongation factor 1-alpha support its novelty. The species is found in a lineage basal to the order Chaetothyriales, amidst relatives from rock, but also species repeatedly isolated from human skin and nails and eventually causing mild cutaneous infections. Coniosporium epidermidis is consistently found on humans, either asymptomatic or symptomatic. The species indicates a change of life style towards human pathogenicity, which is a recurrent type of ecology in derived Chaetothyriales. Superficial and cutaneous infection by melanized fungi is a new category in dermatology.

KEYWORDS:

Black yeasts; Coniosporium; superficial mycosis; taxonomy

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