[Zeng, Yan-Ling] Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod State Forestry Adm, Changsha 410004, Hunan, Peoples R China.^[Zhang, Dang-Quan] Cent S Univ Forestry & Technol, Hunan Prov Key Lab Forestry Biotechnol, Changsha 410004, Hunan, Peoples R China.^[Peng, Wan-Xi] Cent S Univ Forestry & Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Hunan, Peoples R China.