巴西固氮螺菌Sp245脂多糖O-特异性多糖的结构
Structure of the O-specific polysaccharide of the lipopolysaccharide of Azospirillum brasilense Sp245.
作者信息
Fedonenko Yuliya P, Zatonsky George V, Konnova Svetlana A, Zdorovenko Evelina L, Ignatov Vladimir V
机构信息
Institute of Biochemistry and Physiology of Plants and Microorganisms, Prospekt Entuziastov 13, 410015 Saratov, Russia.
出版信息
Carbohydr Res. 2002 Apr 30;337(9):869-72. doi: 10.1016/s0008-6215(02)00061-7.
An O-specific polysaccharide was isolated from the lipopolysaccharide of a plant-growth-promoting bacterium Azospirillum brasilense Sp245 and studied by sugar analyses along with one- and two-dimensional 1H and 13C NMR spectroscopy, including NOESY. The polysaccharide was found to be a new rhamnan with a pentasaccharide repeating unit having the following structure:-->2)-beta-D-Rhap-(1-->3)-alpha-D-Rhap-(1-->3)-alpha-D-Rhap-(1-->2)-alpha-D-Rhap-(1-->2)-alpha-D-Rhap-(1-->
从促进植物生长的巴西固氮螺菌Sp245的脂多糖中分离出一种O-特异性多糖，并通过糖分析以及一维和二维¹H和¹³C NMR光谱（包括NOESY）进行研究。发现该多糖是一种新的鼠李聚糖，其五糖重复单元具有以下结构：→2)-β-D-鼠李糖基-(1→3)-α-D-鼠李糖基-(1→3)-α-D-鼠李糖基-(1→2)-α-D-鼠李糖基-(1→2)-α-D-鼠李糖基-(1→
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