Occurrence of Carrageenan Structure in an Agar from the Red Seaweed Digenea simplex (Wulfen)C. Agardh (Rhodomelaceae, Ceramiales) with a Short Review of Carrageenan-Agarocolloid Hybridin the Florideophycidae
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| 024 | 7 | 0 | |a 10.1515/BOT.2003.015 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1515/BOT.2003.015 | ||
| 245 | 0 | 0 | |a Occurrence of Carrageenan Structure in an Agar from the Red Seaweed Digenea simplex (Wulfen)C. Agardh (Rhodomelaceae, Ceramiales) with a Short Review of Carrageenan-Agarocolloid Hybridin the Florideophycidae |h [Elektronische Daten] |c [R. Takano, K. Shiomoto, K. Kamei, S. Hara, S. Hirase] |
| 520 | 3 | |a A fractionation study of crude agar from the red seaweed Digenea simplex led to isolation of a galactan sulfate fraction consisting of a carrageenan-agaroid hybrid-type backbone. This polysaccharide fraction, containing D-galactose (Gal), L-Gal, 3,6-anhydro-D-galactose (D-AnGal), L-AnGal, sulfate and a small amount of xylose, appeared to consist of repeating units of both 4-O-β-D-galactopyranosyl-3,6-anhydro-L-galactose (agarobiose) and 4-O-β-D-galactopyranosyl-3,6-anhydro-D-galactose (carrabiose) on the basis of results from a partial methanolysis study. Two other repeating disaccharide units in the backbone, 4-O-β-D-galactopyranosyl- L-galactose and 4-O-β-D-galactopyranosyl-D-galactose, were also suggested by the methylation study. The sulfate groups were also suggested to be located at O-4 of (1→3)-linked D-Gal, O-6 of (1→3)-linked D-Gal, O-6 of (1→4)-linked L-Gal and/or O-2 of (1→4)-linked AnGal residues, besides O-3 of (1→4)-linked D-Gal residue. Co-occurrence of carrageenan and agarocolloid backbone structure among the genera in the Florideophycidae was also reviewed. | |
| 540 | |a Copyright © 2003 by Walter de Gruyter GmbH & Co. KG | ||
| 690 | 7 | |a Hydrobiology |2 nationallicence | |
| 690 | 7 | |a Mycology, fungi |2 nationallicence | |
| 690 | 7 | |a Botany & plant sciences |2 nationallicence | |
| 700 | 1 | |a Takano |D R. |4 aut | |
| 700 | 1 | |a Shiomoto |D K. |4 aut | |
| 700 | 1 | |a Kamei |D K. |4 aut | |
| 700 | 1 | |a Hara |D S. |4 aut | |
| 700 | 1 | |a Hirase |D S. |4 aut | |
| 773 | 0 | |t Botanica Marina |d Walter de Gruyter |g 46/2(2003-03-10), 142-150 |x 0006-8055 |q 46:2<142 |1 2003 |2 46 |o botm | |
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| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Takano |D R. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Shiomoto |D K. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kamei |D K. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hara |D S. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hirase |D S. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Botanica Marina |d Walter de Gruyter |g 46/2(2003-03-10), 142-150 |x 0006-8055 |q 46:2<142 |1 2003 |2 46 |o botm | ||
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