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Microbial and Enzymatic Degradation of Wood and Wood Components
The oil crisis during the 1970s turned interest towards the utilization of renewable resources and towards lignocellulosics in particular, and the commercial utilization of this technology has not progressed as rapidly as one would have desired.
The Paleozoic Origin of Enzymatic Lignin Decomposition Reconstructed from 31 Fungal Genomes
Comparative analyses of 31 fungal genomes suggest that lignin-degrading peroxidases expanded in the lineage leading to the ancestor of the Agaricomycetes, which is reconstructed as a white rot species, and then contracted in parallel lineages leading to brown rot and mycorrhizal species.
Extensive sampling of basidiomycete genomes demonstrates inadequacy of the white-rot/brown-rot paradigm for wood decay fungi
The results indicate that the prevailing paradigm of white rot vs. brown rot does not capture the diversity of fungal wood decay mechanisms, and suggest a continuum rather than a dichotomy between the white-rot and brown-rot modes of wood decay.
Degradation of the lignocellulose complex in wood
The ratio of syringyl:guaiacyl lignin of different woods, different cell types, and even the different layers within a cell wall influenced the type and extent of decay by white-rot fungi.
Comparative Transcriptome and Secretome Analysis of Wood Decay Fungi Postia placenta and Phanerochaete chrysosporium
The two species display distinct expression patterns for oxidoreductase-encoding genes that are consistent with an extracellular Fenton system and include the upregulation of genes involved in iron acquisition, in the synthesis of low-molecular-weight quinones, and possibly in redox cycling reactions.
Delignification by wood-decay fungi
Wood decay fungi are unique because of their capacity to decompose lignified cell walls. A few species are of special interest because they can selectively remove lignin from wood without extensive
Biological degradation of wood.
The morphological and chemical changes that occur in wood after degradation by different microorganisms are reviewed and information is provided that will help identify the types of deterioration found in wood of historic value.