Environmental and molecular approach to dye industry waste degradation by the ascomycete fungus Nectriella pironii

Textile industry effluents and landfill leachate contain chemicals such as dyes, heavy metals and aromatic amines characterized by their mutagenicity, cytotoxicity and carcinogenicity. The aim of the present study was investigation of the ascomycete fungus N. pironii isolated from urban postindustri...

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Bibliographic Details
Published in:Scientific reports 2021-12, Vol.11 (1), p.23829-13, Article 23829
Main Authors: Góralczyk-Bińkowska, Aleksandra, Długoński, Andrzej, Bernat, Przemysław, Długoński, Jerzy, Jasińska, Anna
Format: Article
Language:English
Subjects:
631/326
631/61
704/172
Amines
Azo dyes
Biodegradation
Carcinogenicity
Cytochrome P450
Cytotoxicity
Decolorization
Dye industry wastes
Dyes
Fungi
Green infrastructure
Heavy metals
High-performance liquid chromatography
Humanities and Social Sciences
Industrial effluents
Laccase
Landfill
Landfills
Leachates
Liquid chromatography
Metal concentrations
multidisciplinary
Mutagenicity
Pollutants
Science
Science (multidisciplinary)
Textile industry
Textile industry wastes
Toluidine
Waste disposal sites
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Summary:Textile industry effluents and landfill leachate contain chemicals such as dyes, heavy metals and aromatic amines characterized by their mutagenicity, cytotoxicity and carcinogenicity. The aim of the present study was investigation of the ascomycete fungus N. pironii isolated from urban postindustrial textile green space for its ability to grow and retain metabolic activity in the presence of the dye industry waste. Research focused mainly on dyes, heavy metals and aromatic amines, which had been detected in landfill leachate via HPLC–MS/MS analysis. Presence of all tested compounds as well as leachate in the growth medium clearly favored the growth of fungal biomass. Only slight growth limitation was observed in the presence of 50 mg L -1 o -tolidine. The fungus eliminated o -tolidine as well as dyes at all tested concentrations. The presence of metals slightly influenced the decolorization of the azo dyes; however, it was still similar to 90%. During fungal growth, o -tolidine was hydroxylated and/or converted to toluidine and its derivatives. Laccase and cytochrome P450 involvement in this process has been revealed. The results presented in the paper provide a valuable background for the development of a fungus-based system for the elimination of toxic pollutants generated by the textile industry.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-03446-x