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Book ChapterDOI

Enzymology and Molecular Biology of Lignin Degradation

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TLDR
In this chapter, several decades of research on white-rot fungi are summarized and recent developments in molecular biology and enzymology are emphasized.
Abstract
Lignin is the most abundant aromatic polymer in nature. It is synthesized by higher plants, reaching levels of 20–30% of the dry weight of woody tissue. Although white-rot fungi were long recognized as efficient lignin-degrading microbes, research on their enzymology and genetics was somewhat neglected until the past decade. The impetus for increased research interest can be traced to the discovery of “ligninases” and potential commerical applications in the pulp and paper industry and in the degradation of xenobiotics. In this chapter, we briefly summarize several decades of research on white-rot fungi, and readers are referred to several comprehensive reviews for additional background information. Recent developments in molecular biology and enzymology are emphasized. Areas where knowledge is incomplete are highlighted.

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Citations
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Journal ArticleDOI

Lignocellulosic residues : Biodegradation and bioconversion by fungi

TL;DR: The use of fungi in low cost bioremediation projects might be attractive given their lignocellulose hydrolysis enzyme machinery.
Journal ArticleDOI

Biodegradation of lignin by white rot fungi.

TL;DR: A review is presented related to the biochemistry of lignocellulose transformation that focuses on the roles of small molecular compounds and radicals working in concert with enzymes in wood rotting basidiomycetous fungi.
Journal ArticleDOI

Extracellular oxidative systems of the lignin-degrading Basidiomycete Phanerochaete chrysosporium.

TL;DR: The US Department of Energy has assembled a high quality draft genome of Phanerochaete chrysosporium, a white rot Basidiomycete capable of completely degrading all major components of plant cell walls including cellulose, hemicellulose and lignin, with hundreds of sequences predicted to encode extracellular enzymes including an impressive number of oxidative enzymes potentially involved in lignocellulose degradation.
Journal ArticleDOI

Substrate oxidation sites in versatile peroxidase and other basidiomycete peroxidases

TL;DR: Crystallographic, spectroscopic, directed mutagenesis, and kinetic studies showed that these 'hybrid' properties of VP are due to the coexistence in a single protein of different catalytic sites reminiscent of those present in the other basidiomycete peroxidase families.
Journal ArticleDOI

Degradation of aflatoxin B1 by fungal laccase enzymes

TL;DR: The enzymatic degradation of aflatoxin B(1) by white rot fungi through laccase production was investigated in different liquid media and could be an important bio-control measure to reduce the level of this mycotoxin in food commodities.
References
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Journal ArticleDOI

Enzymatic combustion: the microbial degradation of lignin

TL;DR: This paper presents a meta-analyses of IGNIN as a stimulus and its applications in medicine and physiology, and discusses the role that IGNIN plays in the development of disease and its role in medicine.
Journal ArticleDOI

Rapid preparation of DNA from filamentous fungi

TL;DR: A general, simple and inexpensive method for the isolation of DNA from filamentous fungi, starting from freeze‐dried mycelium 01–015% by weight, which allows the processing of many samples in parallel.
Journal ArticleDOI

The genome sequence of the filamentous fungus Neurospora crassa

James E. Galagan, +77 more
- 24 Apr 2003 - 
TL;DR: A high-quality draft sequence of the N. crassa genome is reported, suggesting that RIP has had a profound impact on genome evolution, greatly slowing the creation of new genes through genomic duplication and resulting in a genome with an unusually low proportion of closely related genes.
Journal ArticleDOI

Lignin chemistry—past, present and future

TL;DR: Later development, beginning with the dehydrogenation theory and experimental studies on the de-hydrogenative polymerization of p-hydroxycinnamyl alcohols, is reviewed in this article.
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