Phylogenetic position and physiology of Cerinosterus cyanescens |
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Authors: | WJ Middelhoven E Guého GS de Hoog |
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Institution: | (1) Laboratory of Microbiology, Wageningen Agricultural University, P.O. Box 8033, NL-6700 EJ Wageningen, The Netherlands;(2) Unité de Mycologie, Institut Pasteur, 28, rue du Dr Roux, F-75724 Paris Cedex 15, France;(3) Centraalbureau voor Schimmelcultures, P.O. Box 273, NL-3740 AG Baarn, The Netherlands |
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Abstract: | Partial 25S rRNA sequencing of Cerinosterus cyanescens showed it to be a close relative of Microstroma juglandis, a member of the basidiomycetous order Microstromatales. It is unrelated to the generic type species, C. luteoalba, which is a member of the order Dacrymycetales. The clinical occurrence of C. cyanescens is possibly explained by its thermotolerance and lipolytic activity. The species' nutritional profile is established. Growth on n-hexadecane is rapid; it grows well on typical plant constituents like gallic, tannic, vanillic, quinic and p-coumaric acids, but not on 3-hydroxybenzoic acid, phenol and hydroquinone. The failure to assimilate D-galactose, L-sorbose and ethylamine, the presence of urease and sensitivity to cycloheximide are diagnostic for the species. |
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Keywords: | Cerinosterus Dacrymycetales diagnostics Microstromatales phylogeny physiology Sporothrix |
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