Keywords: 
• wood science and technology /
• wood-rotting fungi /
• identification /
• lignases /
• cellulases /
• wood decay

Abstract: Wood-rotting fungi，one of the lignocellulose decomposers in nature，play an important role in the material cycle of the ecosystem. In order to clarify the relationship between wood decay capability of fungi and their lignocellulases activity，five kinds of wood-rotting fungi were identified in this study （namely Fusarium oxysporum, Trametes hirsuta, Fusarium proliferatum, Schizophyllum commune, and Pycnoporus sanguineus），based on morphological characteristics of sporophore，colony，mycelium，and conidium，and combined with sequences of internal transcribed spacer （ITS） and 26S rDNA D1/D2. Also，lignases and cellulases activities were determined from the wood-rotting fungi. Biodegradation capability of the fungi to six different species of wood, including oak （Quercus mongolica）, teak （Tectona grandis）, merbau （Intsia biujga）, Chinese fir （Cunninghamia lanceolata）, Douglas fir （Pseudotsuga menziesii） and masson pine （Pinus massoniana）, was evaluated through wood mass losses of pre-and post-treatments. Results showed that for all five species of fungi, laccase and manganese peroxidase exhibited higher activities than cellulases. After 12 weeks of the decay experiment, T. hirsuta caused the most decay with oak （mass loss of 69.16%）. F. oxysporum, F. proliferatum, and S. commune caused less than 3.00% mass loss with all six species of wood; whereas P. sanguineus caused 41.37% mass loss with oak but only 2.20% mass loss with teak. When comparing wood decay capability of fungi and lignocellulases activity，higher lignases and cellulases activity of the fungus did not mean it had higher decay capability on the wood.［Ch，5 fig. 2 tab. 36 ref.］