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Selenium Induces Manganese-dependent Peroxidase Production by the White-Rot Fungus Bjerkandera adusta (Willdenow) P. Karsten

Selenium Induces Manganese-dependent Peroxidase Production by the White-Rot Fungus Bjerkandera... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biological Trace Element Research Springer Journals

Selenium Induces Manganese-dependent Peroxidase Production by the White-Rot Fungus Bjerkandera adusta (Willdenow) P. Karsten

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References (23)

Publisher
Springer Journals
Copyright
Copyright © 2007 by Humana Press Inc.
Subject
Life Sciences; Oncology ; Nutrition; Biotechnology; Biochemistry, general
ISSN
0163-4984
eISSN
1559-0720
DOI
10.1007/s12011-007-8084-5
pmid
18227976
Publisher site
See Article on Publisher Site

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.

Journal

Biological Trace Element ResearchSpringer Journals

Published: Jan 29, 2008

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