Degradation by lignin peroxidase

UMEZAWA AND HIGUCHI Lignin Degradation by Lignin Peroxidases 237... 

Mechanisms of Lignin Degradation by Lignin Peroxidase and Laccase of White-Rot Fungi... 

T Higuchi. Mechanisms of lignin degradation by lignin peroxidase and laccase of white-rot fungi. In NG Lewis, Paice, M.G., eds. Plant Cell Wall Polymers Biogenesis and Biodegradation. ACS Symposium Series, 1989, pp. 482-502. 

Figure 1. 3-0-4 lignin substructure model compounds and products of their degradation by ligninolytic cultures of Phanerochaete chrysosporium and by lignin peroxidase. D H, and 0 of 3-ether bond and of H2 0, respectively. B and C show results of stable isotope experiments. 

Degradation of Lignin Substructure Model Gonpounds by Lignin Peroxidase fron Pbanerocbaete cbrysosporlum... 

Degradation of Polyaeric Lignin Preparations by Lignin Peroxidases... 

Figure 4. Degradation of DHcP 5 by lignin peroxidase/H2O2 system. In DHcP 5> the portion enclosed with rectangular represents the portion derived from coniferyl alcohol. LP lignin peroxidase.

Figure 10. Degradation of veratryl alcohol 45 by lignin peroxidase.

Figure 6. (/ -0-4)-(/ -0-4) lignin substructure model trimer 6 and its degradation products by lignin peroxidase. 

Thus, most of the degradative reactions of polymeric lignins suggested previously by the analysis of decayed lignin isolated from decayed wood by white-rot fungi were catalyzed by lignin peroxidase. 

Figure 9. Degradation products of synthetic lignin (DHP) 16 by lignin peroxidase. 8, 9 and 11 Aromatic ring cleavage products 13 and 14 / -0-4 bond cleavage products.

The first report on the peroxidase transformation of dioxins was published by Hammel et al. in 1986 [116]. They transformed dibenzo[p]dioxin and 2-chlorodi-benzo / dioxin with lignin peroxidase from P. chrysosporium. Later on, with the aim to elucidate the pathway for the fungal degradation of 2.7-dichlorodi ben7.0-p-dioxin. the oxidation products generated by lignin peroxidase and manganese peroxidase... 

Bumpus JA, M Tatarko (1994) Biodegradation of 2,4,6-trinitrotoluene by Phanerochaete chrysosporium identification of initial degradation products and the discovery of a metabolite that inhibits lignin peroxidases. Curr Microbiol 28 185-190. 

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