Related Experiment Video
Updated: Jul 7, 2026

Evaluating Leaf Responses to Microbial Secondary Metabolites Using A High-Throughput Format
Published on: December 5, 2025
Selenium induces manganese-dependent peroxidase production by the white-rot fungus Bjerkandera adusta (Willdenow) P.
Tunc Catal1, Hong Liu, Hakan Bermek
1Department of Molecular Biology and Genetics Faculty of Sciences and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey. catalt@itu.edu.tr
Abstract:
In this study, selenium (Se) induction of the ligninolytic enzyme manganese-dependent peroxidase (MnP) production, and the effects on the oxidative state in the white-rot fungus Bjerkandera adusta (Willdenow) P. Karsten were demonstrated. Low concentration of Se (0.5 mM) caused up to a twofold increase in MnP production (0.81 +/- 0.05 U/ml) when compared to control (0.39 +/- 0.07 U/ml), whereas higher concentrations of Se (200 mM) inhibited (0.03 +/- 0.01 U/ml) MnP production. Addition of high concentration of Se also caused up to a twofold increase in lipid peroxidation levels. These results demonstrate for the first time that Se may induce or reduce MnP production and lipid peroxidation levels which play a significant role in lignin degradation by white-rot fungi.
Related Concept Videos
Microbes and Other Elemental Cycles
Acid Mine Drainage
Radical Oxidation of Allylic and Benzylic Alcohols
Microbial Leaching
Sulfur Assimilation
Microbial Corrosion
