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Degradation Mechanism of 2,4-Dichlorophenol by Fungi Isolated from Marine Invertebrates
Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece.
Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 15780 Athens, Greece.
Division of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
Institut de Chimie des Substances Naturelles, ICSN, CNRS, 91198 Gif sur Yvette, France.
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2020 (English)In: International Journal of Molecular Sciences, ISSN 1422-0067, E-ISSN 1422-0067, Vol. 21, no 9, article id 3317Article in journal (Refereed) Published
Abstract [en]

2,4-Dichlorophenol (2,4-DCP) is a ubiquitous environmental pollutant categorized as a priority pollutant by the United States (US) Environmental Protection Agency, posing adverse health effects on humans and wildlife. Bioremediation is proposed as an eco-friendly, cost-effective alternative to traditional physicochemical remediation techniques. In the present study, fungal strains were isolated from marine invertebrates and tested for their ability to biotransform 2,4-DCP at a concentration of 1 mM. The most competent strains were studied further for the expression of catechol dioxygenase activities and the produced metabolites. One strain, identified as Tritirachium sp., expressed high levels of extracellular catechol 1,2-dioxygenase activity. The same strain also produced a dechlorinated cleavage product of the starting compound, indicating the assimilation of the xenobiotic by the fungus. This work also enriches the knowledge about the mechanisms employed by marine-derived fungi in order to defend themselves against chlorinated xenobiotics.

Place, publisher, year, edition, pages
MDPI, 2020. Vol. 21, no 9, article id 3317
Keywords [en]
2, 4-dichlorophenol, marine-derived fungi, invertebrate symbionts, catechol dioxygenase, DCP metabolites
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-78914DOI: 10.3390/ijms21093317PubMedID: 32392868Scopus ID: 2-s2.0-85084587186OAI: oai:DiVA.org:ltu-78914DiVA, id: diva2:1430818
Note

Validerad;2020;Nivå 2;2020-05-18 (alebob)

Available from: 2020-05-18 Created: 2020-05-18 Last updated: 2020-05-28Bibliographically approved

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Topakas, Evangelos

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