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Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution.
- Source :
-
Carbohydrate polymers [Carbohydr Polym] 2015 Mar 06; Vol. 117, pp. 836-844. Date of Electronic Publication: 2014 Oct 24. - Publication Year :
- 2015
-
Abstract
- The cell wall polysaccharides from Codium decorticatum and their assembly were studied and these results were compared with those obtained previously for this genus. The water soluble polysaccharides are: (i) Pyruvylated and sulfated 3- and 6-linked β-D-galactans with sulfate mainly on C-4 and also on C-6. Pyruvate ketals are linked to O-3 and O-4 of terminal β-D-galactose or O-4 and O-6 of 3-linked β-D-galactose. (ii) Sulfated 3-linked β-L-arabinans substituted on C-2 or C-2 and C-4 predominantly with sulfate, but also with single stubs of arabinose, and (iii) 4-linked β-D-mannans with a low degree of sulfation on C-2. The whole polysaccharide system comprises 6.9% of sulfated polysaccharides and 32.9% of fibrillar polysaccharides, mostly insoluble mannans. By in situ localization it was possible to detect two similar fibrillar layers separated by a zone rich in charged polymers. Besides, arabinogalactan proteins co-localized with the fibrillar components.<br /> (Copyright © 2014 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1879-1344
- Volume :
- 117
- Database :
- MEDLINE
- Journal :
- Carbohydrate polymers
- Publication Type :
- Academic Journal
- Accession number :
- 25498707
- Full Text :
- https://doi.org/10.1016/j.carbpol.2014.10.039