Brown rot of wood as a model for studies of lignocellulose humification

摘要: Humus substances synthesis was investigated in the course of birch wood decomposition by a brown-rot fungusPiptoporus betulinus. With progressing brown rot proportion high molecular weight humic acids is gradually increased at expense fulvic acids, amount which proportionally lowered. The humus constituents are not accumulated decomposed laccase producing white-rot fungi despite availability suitable phenolic substrates; low fraction permanently higher than acids. function lignin degradation and biosynthesis problematic.