TY  - JOUR
T1  - Degradation of the γ-Carboxyl-Containing Diarylpropane Lignin Model Compound 3-(4′-Ethoxy-3′-Methoxyphenyl)-2-(4″-Methoxyphenyl)Propionic Acid by the Basidiomycete Phanerochaete chrysosporium
A1  - Gold, Michael H.
LA  - en
YR  - 1984
UL  - http://buscaintegrada.pucsp.br/vufind/Record/pubmed-239732
AB  - The white-rot basidiomycete Phanerochaete chrysosporium metabolized 3-(4′-ethoxy-3′-methoxyphenyl)-2-(4″-methoxyphenyl)propionic acid (V) in low-nitrogen, stationary cultures, conditions under which ligninolytic activity is expressed. The ability of several fungal mutant strains to degrade V reflected their ability to degrade [(14)C]lignin to (14)CO(2). 1-(4′-Ethoxy-3′-methoxyphenyl)-2-(4″-methoxyphenyl)-2- hydroxyethane (VII), anisyl alcohol, and 4-ethoxy-3-methoxybenzyl alcohol were isolated as metabolic products, indicating an initial oxidative decarboxylation of V, followed by α, β cleavage of the intermediate (VII). Exogenously added VII was rapidly converted to anisyl alcohol and 4-ethoxy-3-methoxybenzyl alcohol. When the degradation of V was carried out under (18)O(2), (18)O was incorporated into the β position of the diarylethane product (VII), indicating that the reaction is oxygenative.
KW  - Physiology and Biotechnology
ER  -