Open AccessA proposed role of oxalic acid in wood decay systems of wood‐rotting basidiomycetes
Author(s) -
Shimada Mikio,
Ma DengBo,
Akamatsu Yasumi,
Hattori Takefumi
Publication year - 1994
Publication title -
fems microbiology reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.91
H-Index - 212
eISSN - 1574-6976
pISSN - 0168-6445
DOI - 10.1111/j.1574-6976.1994.tb00049.x
Subject(s) - phanerochaete , oxalic acid , manganese peroxidase , lignin , oxalate , chrysosporium , lignin peroxidase , chemistry , cellulose , laccase , organic acid , peroxidase , biodegradation , botany , food science , biochemistry , organic chemistry , biology , enzyme
The possible roles of oxalic acid, veratryl alcohol, and manganese were investigated in relation to lignin biodegradation by white‐rot basidiomycetes. Oxalate inhibited both lignin peroxidase (LiP) and manganese‐peroxidase (MnP). and was decarboxylated by the mediation of veratryl alcohol and Mn. Oxalate was shown to regulate the mineralization of lignin in the in vivo system of Phanerochaete chrysosporium . In the brown‐rot wood decay process, oxalic acid may serve as an acid catalyst as well as an electron donor for the Fenton reaction, to breakdown cellulose and hemicellulose. Oxaloacetase and glyoxylate oxidase may play a key role in production of oxalic acid by white‐rot and brown‐rot basidiomycetes such as Phanerochaete chrysosporium, Coriolus versicolor and Tyromyces palustris . A possible role of oxalate metabolism is discussed in relation to the physiology of wood‐rotting fungi.