Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis

作     者：LI Jing-jing BI Hong-tao YAN Jl-hong SUN Fang FAN Sha-sha CAO Gang ZHOU Yi-fa CHEN Xi-guang 

作者机构：College of Marine Life Science Ocean University of China Qingdao 266003 P. R. China Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau Biology Chinese Academy of Sciences Xining 810008 P. R. China Bee Research Institute Chinese Academy of Agricultural Sciences Beo'ing 100093 P. R. China School of Life Sciences Northeast Normal University Changchun 130024 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2012年第28卷第4期

页      面：677-681页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 0832[工学-食品科学与工程（可授工学、农学学位）] 07[理学] 08[工学] 083202[工学-粮食、油脂及植物蛋白工程] 

基　　金：Supported by the Natural Science Foundation of Jilin Province,China(No.20110242) the Natural Science Foundation of Qinghai Province,China(Nos.2011-Z-924Q,2011-ZR-242) 

主　　题：Leymus chinensis Polysaccharide Fractionation 

摘      要：Leymus chinensis（Trin.） Tzvel.,widely distributed at eastern Eurasian steppe and divided into gray-green type and yellow-green type,has different stress resistance to *** the present study,the water-soluble polysaccharides from two ecotypes of *** were analyzed in detail,and the differences between polysaccharides from the two ecotypes of *** in the yield,monosaccharide composition,molecular weight and structure were *** polysaccharides of *** were composed of both neutral and acidic *** neutral polysaccharides contained mannose,glucose,galactose,xylose and arabinose,and mainly consisted of β-1,4-Glcp,α-1,3-Galp and α-1,2-Xylp *** acidic polysaccharides contained mannose,rhamnose,glucuronic acid,galacturonic acid,glucose,galactose,xylose and ***,the yields,monosaccharides contents and the molecular weights of the polysaccharides from the two ecotypes of *** were ***,the resistance type（gray-green type） of *** contained a number of α-1,3-Manp and reducing end of β-Glcp residues,and much more O-methyl groups than normal type（yellow-green type） of *** differences of the polysaccharides of the two ecotypes of *** might be due to the long-term environmental adaptability of plant,and the differences of the polysaccharides might influence the stress resistance of ***.