A basidiomycetous yeast isolated from Las Yungas rainforest (Tucumán, Argentina) and arbitrarily named HP-2023 was selected based on its outstanding textile dye decolorizing ability. Complete decolorization of Vilmafix Red 7B-HE and Vilmafix Blue RR-BB (200 mg/l) was achieved after 16 h of cultivation. Yeast characterization was accomplished by means of both traditional and molecular methods. Results concerning molecular fingerprinting and phenotypic characterization led to identify it as Trichosporon sp., closely related to the T. multisporum-T. laibachii complex. The present work represents the first description of a Trichosporon yeast involved in reactive textile dye decolorization processes.
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