Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1093/femsle/fnw105
Title (Primary) Widespread ability of fungi to drive quinone redox cycling for biodegradation
Author Krueger, M.C.; Bergmann, M.; Schlosser, D.
Journal FEMS Microbiology Letters
Year 2016
Department UMB
Volume 363
Issue 11
Page From fnw105
Language englisch
Keywords fungi; biodegradation; quinones; redox cycling; Fenton chemistry
UFZ wide themes RU4;
Abstract Wood-rotting fungi possess remarkably diverse extracellular oxidation mechanisms, including enzymes, such as laccase and peroxidases, and Fenton chemistry. The ability to biologically drive Fenton chemistry by the redox cycling of quinones has previously been reported to be present in both ecologically diverging main groups of wood-rotting basidiomycetes. Therefore, we investigated whether it is even more widespread among fungal organisms. Screening of a diverse selection of a total of 18 ascomycetes and basidiomycetes for reduction of the model compound 2,6-dimethoxy benzoquinone revealed that all investigated strains were capable of reducing it to its corresponding hydroquinone. In a second step, depolymerization of the synthetic polymer polystyrene sulfonate was used as a proxy for quinone-dependent Fenton-based biodegradation capabilities. A diverse subset of the strains, including environmentally ubiquitous molds, white-rot fungi, as well as peatland and aquatic isolates, caused substantial depolymerization indicative for the effective employment of quinone redox cycling as biodegradation tool. Our results may also open up new paths to utilize diverse fungi for the bioremediation of recalcitrant organic pollutants.
Persistent UFZ Identifier
Krueger, M.C., Bergmann, M., Schlosser, D. (2016):
Widespread ability of fungi to drive quinone redox cycling for biodegradation
FEMS Microbiol. Lett. 363 (11), fnw105