Two chains of rhamnogalacturonan II are cross-linked by borate-diol ester bonds in higher plant cell walls
Two chains of rhamnogalacturonan II are cross-linked by borate-diol ester bonds in higher plant cell walls
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DOI：
10.1104/pp.110.3.1017
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发表时间：
1996-03-01
期刊：
影响因子：
7.4
通讯作者：
Azuma, J
中科院分区：
文献类型：
--
作者：
Kobayashi, M;Matoh, T;Azuma, J
硼-多糖复合物的多糖部分（T. Matoh，K.石垣湾Ohno，J. Azuma [1993] Plant Cell Physiol 34：639-642）通过糖基连接分析和诊断性单糖的存在，包括芹菜糖、乙酸、2-O-甲基岩藻糖和3-脱氧-D-甘露-2-辛酮糖酸，已显示为鼠李半乳糖醛酸聚糖II。从复合物中去除硼使分子量减少一半，而不引起还原端基数目的显著增加，这表明硼作为硼酸将两个鼠李糖半乳糖醛酸聚糖II链连接在一起以形成硼-多糖复合物。
Polysaccharide moiety of the boron-polysaccharide complex (T. Matoh, K. Ishigaki, K. Ohno, J. Azuma [1993] Plant Cell Physiol 34: 639-642) isolated from radish (Raphanos sativus) roots has been shown to be rhamnogalacturonan II by glycosyl-linkage analysis and the presence of diagnostic monosaccharides, including apiose, aceric acid, 2-O-methylfucose, and 3-deoxy-D-manno-2-octulosonic acid. Removal of boron from the complex reduced the molecular weight by one-half without causing a significant increase in the number of reducing end groups, indicating that boron, as boric acid, links two rhamnogalacturonan II chains together to form the boron-polysaccharide complex.