Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis

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	Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis
	Li Jing-jing ; Bi Hong-tao ; Yan Ji-hong ; Sun Fang ; Fan Sha-sha ; Cao Gang ; Zhou Yi-fa ; Chen Xi-guang
	2012-07-25
发表期刊	CHEMICAL RESEARCH IN CHINESE UNIVERSITIES ; Liu, WJ; Chen, SY; Qin, X; Baumann, F; Scholten, T; Zhou, ZY; Sun, WJ; Zhang, TZ; Ren, JW; Qin, DH.Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2012,28(4):677-681
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 environment. In the present study, the water-soluble polysaccharides from two ecotypes of L. chinensis were analyzed in detail, and the differences between polysaccharides from the two ecotypes of L. chinensis in the yield, monosaccharide composition, molecular weight and structure were clarified. The polysaccharides of L. chinensis were composed of both neutral and acidic polysaccharides. The neutral polysaccharides contained mannose, glucose, galactose, xylose and arabinose, and mainly consisted of beta-1,4-Glcp, alpha-1,3-Galp and alpha-1,2-Xylp residues. The acidic polysaccharides contained mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, xylose and arabinose. However, the yields, monosaccharides contents and the molecular weights of the polysaccharides from the two ecotypes of L. chinensis were different. Moreover, the resistance type(gray-green type) of L. chinensis contained a number of alpha-1,3-Manp and reducing end of beta-Glcp residues, and much more O-methyl groups than normal type(yellow-green type) of L. chinensis. The differences of the polysaccharides of the two ecotypes of L. chinensis might be due to the long-term environmental adaptability of plant, and the differences of the polysaccharides might influence the stress resistance of L. chinensis.; 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 environment. In the present study, the water-soluble polysaccharides from two ecotypes of L. chinensis were analyzed in detail, and the differences between polysaccharides from the two ecotypes of L. chinensis in the yield, monosaccharide composition, molecular weight and structure were clarified. The polysaccharides of L. chinensis were composed of both neutral and acidic polysaccharides. The neutral polysaccharides contained mannose, glucose, galactose, xylose and arabinose, and mainly consisted of beta-1,4-Glcp, alpha-1,3-Galp and alpha-1,2-Xylp residues. The acidic polysaccharides contained mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose, xylose and arabinose. However, the yields, monosaccharides contents and the molecular weights of the polysaccharides from the two ecotypes of L. chinensis were different. Moreover, the resistance type(gray-green type) of L. chinensis contained a number of alpha-1,3-Manp and reducing end of beta-Glcp residues, and much more O-methyl groups than normal type(yellow-green type) of L. chinensis. The differences of the polysaccharides of the two ecotypes of L. chinensis might be due to the long-term environmental adaptability of plant, and the differences of the polysaccharides might influence the stress resistance of L. chinensis.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/21579
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Li Jing-jing,Bi Hong-tao,Yan Ji-hong,et al. Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, Liu, WJ; Chen, SY; Qin, X; Baumann, F; Scholten, T; Zhou, ZY; Sun, WJ; Zhang, TZ; Ren, JW; Qin, DH.Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2012,28(4):677-681,2012.
APA	Li Jing-jing.,Bi Hong-tao.,Yan Ji-hong.,Sun Fang.,Fan Sha-sha.,...&Chen Xi-guang.(2012).Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES.
MLA	Li Jing-jing,et al."Comparative Analysis of Polysaccharides from Two Ecological Types of Leymus chinensis".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES (2012).