Production of Wood Decay Enzymes, Loss of Mass, and Lignin Solubilization in Wood by Diverse Tropical Freshwater Fungi

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Bibliographic Details
Title: Production of Wood Decay Enzymes, Loss of Mass, and Lignin Solubilization in Wood by Diverse Tropical Freshwater Fungi
Authors: Hyde, KD, Reddy, CA, Bucher, VVC, Pointing, SB
Source: Microbial Ecology. 48:331-337
Publisher Information: Springer Science and Business Media LLC, 2004.
Publication Year: 2004
Subject Terms: 0301 basic medicine, Fungi - Classification - Enzymology, Xylosidases - Metabolism, Tropical Climate, 0303 health sciences, Fresh Water - Microbiology, Laccase, Fungi, Fresh Water, Lignin, Wood, 03 medical and health sciences, Cellulase - Metabolism, Xylosidases, Cellulase, Peroxidases, Solubility, Laccase - Metabolism, Lignin - Metabolism, Peroxidases - Metabolism
Description: In vitro production of cellulase and xylanase was common among diverse freshwater ascomycetes and their hyphomycetous anamorphs. Production of enzymes involved in lignin degradation was rare. Most isolates were capable of causing mass loss in angiosperm wood, although values were low, at approximately 10% during a 24-week period. A few isolates caused higher mass loss of up to 26.5%, and five of these were shown to solubilize significant amounts of lignin. This is the first report of lignin solubilization by freshwater fungi. Torula herbarum (hyphomycete) and Ophioceras dolichostomum (ascomycete) produced indices of lignin solubilization equivalent to those of terrestrial white-rot basidiomycetes. In all cases wood decay was 2.2- to 3-fold higher in exposed rather than submerged conditions.
Document Type: Article
Language: English
ISSN: 1432-184X
0095-3628
DOI: 10.1007/s00248-003-0132-x
Access URL: https://pubmed.ncbi.nlm.nih.gov/15692853
https://www.jstor.org/stable/25153115
https://pubmed.ncbi.nlm.nih.gov/15692853/
https://core.ac.uk/display/38013214
https://link.springer.com/article/10.1007/s00248-003-0132-x
http://hub.hku.hk/handle/10722/178858
https://dialnet.unirioja.es/servlet/articulo?codigo=1084396
http://hdl.handle.net/10722/178858
Rights: Springer TDM
Accession Number: edsair.doi.dedup.....7f7e59fb408237ea24aed6e5b621d40f
Database: OpenAIRE
Description
Abstract:In vitro production of cellulase and xylanase was common among diverse freshwater ascomycetes and their hyphomycetous anamorphs. Production of enzymes involved in lignin degradation was rare. Most isolates were capable of causing mass loss in angiosperm wood, although values were low, at approximately 10% during a 24-week period. A few isolates caused higher mass loss of up to 26.5%, and five of these were shown to solubilize significant amounts of lignin. This is the first report of lignin solubilization by freshwater fungi. Torula herbarum (hyphomycete) and Ophioceras dolichostomum (ascomycete) produced indices of lignin solubilization equivalent to those of terrestrial white-rot basidiomycetes. In all cases wood decay was 2.2- to 3-fold higher in exposed rather than submerged conditions.
ISSN:1432184X
00953628
DOI:10.1007/s00248-003-0132-x