Tiberius Balaes, Ionel I. Mangalagiu, Catalin Tanase<br>Lignicolous macromycetes: Potential Candidates <br>for Bioremediation of Synthetic Dyes

Tiberius Balaes, Ionel I. Mangalagiu, Catalin Tanase
Lignicolous macromycetes: Potential Candidates
for Bioremediation of Synthetic Dyes

Abstract:

A simple and inexpensive method for biodegradation of synthetic dyes using new spontaneous macromycetes was elaborated. In the framework of this study, 54 lignicolous macromycetes (51 species isolated from natural habitats) were tested concerning the remediation potential against four different structural classes of synthetic dyes (azo, arylmethane, thiazine and anthraquinone). The screening was carried out both in solid (54 strains) and liquid (18 strains) media. The quantification degree of decolourisation was achieved by measuring the decolourisation halo diameter, and the effect of the dye on the fungal development has been established by measuring the fungal growth on supplemented media. The most effective species in bioremediation proved to be the common species of Bjerkandera adusta, Irpex lacteus, Daedaleopsis tricolor, Ganoderma resinaceum, Peniophora incarnata, Polyporus arcularius. To our knowledge, some of these species were studied for the first time regarding the biodegradation of these dyes. The same species that efficiently degraded the dyes on solid media also degraded the dyes at a high rate on liquid media. However, the remediation potential of the tested strains varied with the fungal species and dyes types. The Malachite green dye proved to be mycotoxic, while the Methyl blue was the most degraded dye. Keywords: mycoremediation, synthetic dyes, biodegradation, lignicolous fungi

Issue: 2013, Volume 64, Issue 9

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