1. Department
of Biomass Chemistry, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
2. Department
of Plant Ecology, Forestry and Forest Products Research Institute, 1
Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
3. State
Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan RD., Tianhe District, Guangzhou 510641, P.R. China