Journal
3 BIOTECH
Volume 8, Issue 10, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-018-1465-y
Keywords
Trichosporon akiyoshidainum; Genome; Bio-discoloration mechanism; Yeasts
Categories
Funding
- Agencia Nacional de Promocion Cientifica Y Tecnologica [PICT 1154-2013, PICT 2884-2014]
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Trichosporon akiyoshidainum HP-2023 completely discolorised Reactive Black 5 (200 mg/1) in 24 h. Manganese peroxidase and phenoloxidase, but no laccase activities were detected throughout the incubation. Total aromatic amines in media with Reactive Black 5 decreased 83% after 24 h, supporting an oxidative mechanism of azo dye discoloration. To unravel the genetic basis of these activities, the genome of Trichosporon akiyoshidainum HP-2023 was sequenced, assembled and annotated de novo. T akiyoshidainum HP-2023 genome comprises 30 MB with a G+C content of 60.75% and 9019 gene models. Thirty-three putative carbohydrate-active enzymes with auxiliary activities, probably involved in lignin degradation and dye discoloration, were identified in the annotated genome, including two laccases, four extracellular fungal heme-peroxidases, nineteen hydrogen peroxide-producing enzymes, and four benzoquinone oxidoreductases. This report will facilitate further studies of textile-dye discoloration with this and closely related strains and poses questions about the ligninolytic potential of Trichosporon akiyoshidainum HP-2023 and related species.
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