Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution
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 als...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v117_n_p836_Fernandez http://hdl.handle.net/20.500.12110/paper_01448617_v117_n_p836_Fernandez |
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paper:paper_01448617_v117_n_p836_Fernandez2023-06-08T15:11:58Z Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution Cell wall Codium Green seaweed Polysaccharide structure Sulfated polysaccharide Seaweed Cell walls Codium Green seaweed Polysaccharide structure Sulfated polysaccharides Polysaccharides Codium Codium decorticatum polysaccharide cell wall chemistry cytology green alga metabolism seaweed Cell Wall Chlorophyta Polysaccharides Seaweed 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. © 2014 Elsevier Ltd. All rights reserved. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v117_n_p836_Fernandez http://hdl.handle.net/20.500.12110/paper_01448617_v117_n_p836_Fernandez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cell wall Codium Green seaweed Polysaccharide structure Sulfated polysaccharide Seaweed Cell walls Codium Green seaweed Polysaccharide structure Sulfated polysaccharides Polysaccharides Codium Codium decorticatum polysaccharide cell wall chemistry cytology green alga metabolism seaweed Cell Wall Chlorophyta Polysaccharides Seaweed |
| spellingShingle |
Cell wall Codium Green seaweed Polysaccharide structure Sulfated polysaccharide Seaweed Cell walls Codium Green seaweed Polysaccharide structure Sulfated polysaccharides Polysaccharides Codium Codium decorticatum polysaccharide cell wall chemistry cytology green alga metabolism seaweed Cell Wall Chlorophyta Polysaccharides Seaweed Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| topic_facet |
Cell wall Codium Green seaweed Polysaccharide structure Sulfated polysaccharide Seaweed Cell walls Codium Green seaweed Polysaccharide structure Sulfated polysaccharides Polysaccharides Codium Codium decorticatum polysaccharide cell wall chemistry cytology green alga metabolism seaweed Cell Wall Chlorophyta Polysaccharides Seaweed |
| description |
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. © 2014 Elsevier Ltd. All rights reserved. |
| title |
Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| title_short |
Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| title_full |
Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| title_fullStr |
Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| title_full_unstemmed |
Polysaccharides from the green seaweed Codium decorticatum. Structure and cell wall distribution |
| title_sort |
polysaccharides from the green seaweed codium decorticatum. structure and cell wall distribution |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v117_n_p836_Fernandez http://hdl.handle.net/20.500.12110/paper_01448617_v117_n_p836_Fernandez |
| _version_ |
1768544496964861952 |