文献类型：期刊文献

英文题名：Characterization and comparison of the wood anatomical traits of plantation grown Quercus acutissima and Quercus variabilis

作者：Wang, Jie[1,2] Li, Shan[1,2,3] Guo, Juan[1,2] Ren, Haiqing[4] Wang, Yurong[4] Zhang, Yonggang[1,2] Yin, Yafang[1,2]

通信作者：Li, S[1];Li, S[2];Li, S[3]

机构：[1]Chinese Acad Forestry, Dept Wood Anat & Utilizat, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Wood Collect WOODPEDIA, Beijing 100091, Peoples R China;[3]Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Dept Environm Sci & Ecol, Xian 710021, Peoples R China;[4]Chinese Acad Forestry, Res Inst Wood Ind, Dept Wood Mech & Timber Struct, Beijing 100091, Peoples R China

年份：2021

卷号：42

期号：3

起止页码：244-257

外文期刊名：IAWA JOURNAL

收录：;Scopus(收录号：2-s2.0-85101320996);WOS:【SCI-EXPANDED(收录号:WOS:000683634800003)】；

基金：This work was financially supported by the project of the Chinese Academy of Forestry (CAFYBB2018ZB0015) . We acknowledge Yuan Chen, Zongy-ing Fu, Yanhua Wu, Xueyu Wang for collecting the experimental materials. We are also grateful for technical assistance from Haopeng Yan for the X-ray densitometer test. We would like to thank the Center for Biological Imaging (CBI) , Institute of Biophysics, Chinese Academy of Science and Beijing Center for Physical and Chemical Analysis for our SEM microscopy work, and we would be grateful for Li Wang and Shuang Li for their help of preparing SEM samples and taking SEM images. Miaomiao Zhang is acknowledged for her assistance in using LINTAB TM6Tree Ring Station software.

语种：英文

外文关键词：Wood anatomy; heartwood; sapwood; growth ring width

摘要：Oaks are important tree species, providing essential biomaterial for the wood industry. We characterize and compare wood anatomical traits of plantation grown Quercus acutissima Carruth. and Q. variabilis Blume to provide more detailed information to understand xylem radial growth, structure, and function, as well as differences between sap-wood and heartwood, to provide data relevant for tree breeding and value-added wood utilization of oak plantations in China. In this study, radial strips were collected at breast height from the main trunk of the two species. Late-wood percentage and growth ring width were investigated by X-ray densitometry and a Tree Ring Analysis System, respectively. Vessel and fibre lumen diameter, vessel and fibre wall thickness, vessel density, fibre wall thickness/diam-eter ratio, tissue proportions, and pit membrane thickness in between vasicentric tracheids were observed with light microscopy and electron microscopy and quantified. There were significant differences in a few wood anatomical traits between the two species: vessel wall thickness and vessel lumen diameter were higher in Q. acutissima than in Q. variabilis, while higher axial parenchyma proportion in sapwood was found in Q. variabilis than in Q. acutissima. More abundant tyloses were found in heartwood than in sapwood of both species. Our work showed the intraspecific and interspecific variation of the two species. Most differences between sapwood and heartwood must be attributed to differences in cambial age during their formation.