Skip to main content
U.S. flag

An official website of the United States government

Role of fungal peroxidases in biological ligninolysis

Author(s):

Dan Cullen

Year:

2008

Publication type:

Miscellaneous Publication

Primary Station(s):

Forest Products Laboratory

Source:

Current opinion in plant biology. Vol. 11 (2008): Pages 349-355

Description

The degradation of lignin by filamentous fungi is a major route for the recycling of photosynthetically fixed carbon, and the oxidative mechanisms employed have potential biotechnological applications. The lignin peroxidases (LiPs), manganese peroxidases (MnPs), and closely related enzymes of white rot basidiomycetes are likely contributors to fungal ligninolysis. Many of them cleave lignin model compounds to give products consistent with those found in residual white-rotted lignin, and at least some depolymerize synthetic lignins. However, none has yet been shown to delignify intact lignocellulose in vitro. The likely reason is that the peroxidases need to act in concert with small oxidants that can penetrate lignified tissues. Recent progress in the dissolution and NMR spectroscopy of plant cell walls may allow new inferences about the nature of the oxidants involved. Furthermore, increasing knowledge about the genomes of ligninolytic fungi may help us decide whether any of the peroxidases has an essential role.

Citation

Hammel, Kenneth E.; Cullen, Dan. 2008. Role of fungal peroxidases in biological ligninolysis. Current Opinion in Plant Biology. 11: 349-355

Publication Notes

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
https://www.fs.usda.gov/treesearch/pubs/30656