Abstract
Comparative genomics on wood rotting fungi suggested that the evolution from ancestral white-rot fungi to brown-rot fungi, which are at least phylogenetically classified into the four orders of Boletales, Dacrymycetes, Gloeophyllales, and Polyporales, occurred independently multiple times. In the present study, three brown-rot fungi (Fomitopsis palustris, F. pinicola, and Wolfiporia cocos) and a white-rot fungus (Trametes versicolor) were used to investigate wood decay manner in Polyporales. Wood (Cryptomeria japonica) blocks decayed by the fungi above were analyzed by X-ray diffraction and Fourier transform infrared spectroscopy analyses. As a result, cellulose crystallinities and infrared spectra were significantly different between white-rot and brown-rot fungi. Multivariate analysis of the infrared spectroscopy data showed the somewhat different plot patterns between brown-rot species.
