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- Title
The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta).
- Authors
Miller, Ian J.; Blunt, John W.
- Abstract
The structure of the polysaccharide extracted from Aeodes nitidissima was examined by 13 C NMR spectroscopy and by chemical means, and was found to consist of alternating 3-linked and 4-linked residues. The 3-linked residues comprised D-galactosyl-2-sulfate residues, some of which were substituted with sulfate ester or methyl ether at the 6-position or with pyruvate acetal linked at the 4,6-positions. The 4-linked residues comprised predominantly D-galactosyl with some 2- O -methyl-D-galactosyl and L-galactosyl together with small amounts of 3,6-anhydro-L-galactosyl residues. The composition of this polysaccharide is very similar to that of the polysaccharide from Pachymenia lusoria , which is in accord with the postulate that these algae are closely related within the order Halymeniales.
- Subjects
GALACTANS; POLYSACCHARIDES; BIOPOLYMERS; SACCHARIDES; NUCLEAR magnetic resonance spectroscopy; HALYMENIA; RED algae
- Publication
Botanica Marina, 2005, Vol 48, Issue 2, p137
- ISSN
0006-8055
- Publication type
Article
- DOI
10.1515/BOT.2005.014