Publication Details
Category Text Publication
Reference Category Journals
DOI 10.1016/j.marpolbul.2021.112082
Document author version
Title (Primary) Fungi in PAH-contaminated marine sediments: Cultivable diversity and tolerance capacity towards PAH
Author Álvarez-Barragán, J.; Cravo-Laureau, C.; Wick, L.Y.; Duran, R.
Source Titel Marine Pollution Bulletin
Year 2021
Department UMB
Volume 164
Page From art. 112082
Language englisch
Topic T7 Bioeconomy
Keywords Peroxidase genes; Fungal ITS; PAH-uptake; Alternaria; PAH-contamination
Abstract The cultivable fungal diversity from PAH-contaminated sediments was examined for the tolerance to polycyclic aromatic hydrocarbon (PAH). The 85 fungal strains, isolated in non-selective media, revealed a large diversity by ribosomal internal transcribed spacer (ITS) sequencing, even including possible new species. Most strains (64%) exhibited PAH-tolerance, indicating that sediments retain diverse cultivable PAH-tolerant fungi. The PAH-tolerance was linked neither to a specific taxon nor to the peroxidase genes (LiP, MnP and Lac). Examining the PAH-removal (degradation and/or sorption), Alternaria destruens F10.81 showed the best capacity with above 80% removal for phenanthrene, pyrene and fluoranthene, and around 65% for benzo[a]pyrene. A. destruens F10.81 internalized pyrene homogenously into the hyphae that contrasted with Fusarium pseudoygamai F5.76 in which PAH-vacuoles were observed but PAH removal was below 20%. Thus, our study paves the way for the exploitation of fungi in remediation strategies to mitigate the effect of PAH in coastal marine sediments.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=24181
Álvarez-Barragán, J., Cravo-Laureau, C., Wick, L.Y., Duran, R. (2021):
Fungi in PAH-contaminated marine sediments: Cultivable diversity and tolerance capacity towards PAH
Mar. Pollut. Bull. 164 , art. 112082 10.1016/j.marpolbul.2021.112082