文献类型：期刊文献

英文题名：CELL WALL STRUCTURE AND MECHANICAL PROPERTIES OF SALIX PSAMMOPHILA

作者：Zhou, Xianwu[1] Wang, Yurong[1] Wang, Li[1] Lv, Jianxiong[1] Zhao, Rongjun[1] Yao, Lihong[2] Chen, Zhangjing[3]

第一作者：Zhou, Xianwu

通信作者：Lv, JX[1];Zhao, RJ[1]|[a000555af1057d20aad88]赵荣军;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China;[2]Inner Mongolia Agr Univ, Coll Mat Sci & Art Design, Hohhot, Peoples R China;[3]Virginia Polytech Inst & State Univ, Dept Wood Sci & Forest Prod, Blacksburg, VA USA

年份：2017

卷号：62

期号：1

起止页码：1-12

外文期刊名：WOOD RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000396038700001)】；

基金：The authors thank the State Key Laboratory of the Chinese Academy of Forestry Foundation (CAFYBB2012044), the National "973" Project Foundation of China (2012CB114506) and National natural science foundation (31260158, 31370562) for financial support.

语种：英文

外文关键词：Fiber morphology; vessel morphology; chemical compositions; mechanical properties

摘要：Salix psammophila can grow rapidly in desert and grassland areas. As an abundant bioresource, it is useful to understand its cell morphology, chemical compositions and mechanical properties. In this study, Anatomical properties of Salix psammophila in different annual rings were measured and compared. Fourier transform infrared spectroscopy and chemical titration were used to estimate cell wall chemical compositions. Moreover, mechanical properties in different annual rings were measured through nanoindentation. Fiber cell lumen diameter, fiber cell wall thickness, vessel cell lumen diameter and vessel cell wall thickness of Salix psammophila were measured to be 7.371, 2.285, 32.541 and 1.926 mu m, respectively. Fiber cell lumen diameter, fiber cell wall thickness, vessel cell lumen diameter differs among the annual rings. The cellulose, hemicellulose and lignin contents of Salix psammophila were 44.43, 34.99 and 17.93 %, respectively. Both hemicellulose and lignin contents varied among the annual rings with more hemicellulose but less lignin at the annual ring closer to the pith. The modulus of elasticity (MOE) of fiber cell wall of Salix psammophila decreases from pith to bark.