Production and regulation of lignocellulose-degrading enzymes of Poria-like wood-inhabiting basidiomycetes
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Basidiomycota enzymology isolation & purification metabolism MeSH
- Wood microbiology MeSH
- Nitrogen metabolism MeSH
- Fungal Proteins metabolism MeSH
- Laccase genetics metabolism MeSH
- Lignin metabolism MeSH
- Peroxidases metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Nitrogen MeSH
- Fungal Proteins MeSH
- Laccase MeSH
- Lignin MeSH
- lignocellulose MeSH Browser
- manganese peroxidase MeSH Browser
- Peroxidases MeSH
The wood-decomposing fungal species Antrodia macra, A. pulvinascens, Ceriporiopsis aneirina, C. resinascens and Dichomitus albidofuscus were determined for production of laccase (LAC), Mn peroxidase (MnP), lignin peroxidase (LiP), endo-l,4-P-beta-glucanase, endo-l,4-beta-xylanase, cellobiohydrolase, 1,4-beta-glucosidase and 1,4-beta-xylosidase. The results confirmed the brown-rot mode of Antrodia spp. which did not produce the activity of LAC and MnP. The remaining species performed detectable activity of both enzymes while no strain produced LiP. Significant inhibition of LAC production by high nitrogen was found in all white-rot species while only MnP of D. albidofuscus was regulated in the same way. The endoglucanase and endoxylanase activities of white-rotting species were inhibited by glucose in the medium while those of Antrodia spp. were not influenced by glucose concentration. The regulation of enzyme activity and bio-mass production can vary even within a single fungal genus.
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