DL-galactan hybrids and agarans from gametophytes of the red seaweed Gymnogongrus torulosus

被引：35

作者：

Estevez, JM ^{[1
]}

Ciancia, M ^{[1
]}

Cerezo, AS ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, CONICET,CIHIDECAR, Dept Quim Organ, RA-1428 Buenos Aires, DF, Argentina

来源：

CARBOHYDRATE RESEARCH | 2001年 / 331卷 / 01期

关键词：

sulfated polysaccharides; methylation analysis; C-13 NMR spectroscopy; DL-galactan hybrids; agarans; carrageenans; Gymnogongrus torulosus; red seaweed; phyllophoraceae (rhodophyta);

D O I：

10.1016/S0008-6215(01)00015-5

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

Seaweeds from the genus Gymnogongrus are known to be carrageenophytes; nevertheless, fractionation techniques used previously for the separation of gel-forming and 'soluble carrageenans, applied to the galactans of Gymnogongrus torulosus together with enantiomeric analysis of the sugar components and (when possible) of the structural units, suggested that the system of galactans biosynthesized by the seaweed was formed by DL-galactan hybrids having major amounts of carrageenan-type or agaran-type chains, with minor quantities of agarans with unusual structural details. (C) Published by 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：27 / 41

页数：15

共 48 条

[1]

IDENTIFICATION AND CHARACTERIZATION OF BIOLOGICAL PRECURSORS OF CARRAGEENANS BY C-13 NMR-SPECTROSCOPY [J].