1. Key Laboratory of Forest Biotechnology in YunnanSouthwest Forestry University Kunming Yunnan 650224 P.R. China
2. Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution ControlGuangxi University Nanning 530004 P.R. China
3. Bamboo Research InstituteNanjing Forestry University Nanjing Jiangsu 210037 P.R. China