Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
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Ian J. Miller
Abstract
The polysaccharides extracted from Hymenena palmata, Hymenena palmata f. marginata, Hymenena variolosa and Acrosorium decumbens, all from the family Delesseriaceae, were examined by 13C NMR spectroscopy and by linkage analyses. The backbones of all polysaccharides comprised mainly diads of 3-linked D-galactose and 4-linked L-galactose, and these were heavily substituted with sulfate ester. The polysaccharide from Hymenena palmata f. marginata has the same major component [3DG4S-4LG2S3S] as the polysaccharide from Myriogramme denticulata, also in the Delesseriaceae. The polysaccharides from the remaining samples appear to be very similar to each other and have greater sulfation. A predominant diad appears to be [3DG2S4S6S-4LG2S3S], while some persulfated polysaccharide appears to occur. A separate, sulfated xylan also appears to be present. Inadvertent desulfation appears to occur in dimethylsulfoxide solvent, possibly because of acute electron repulsion in the polysulfated material, and this gives uncertainty to the structural analysis.
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© Walter de Gruyter Berlin New York
Articles in the same Issue
- First letters to the editor in Botanica Marina's “Forum” section
- Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
- Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
- Persistence of sea urchin (Heliocidaris erythrogramma) barrens on the east coast of Tasmania: inhibition of macroalgal recovery in the absence of high densities of sea urchins
- Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
- Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
- The structure of sulfated galactans from selected species of New Zealand Champia
- The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
- The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
- Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
- The structure of polysaccharides from selected New Zealand species of Grateloupia
- The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
- Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
- Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
- Response to “Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans” by Anatolii I. Usov; Bot. Mar. 48 (2005): 178–180
- 8th International Phycological Congress 13–19 August 2005, Durban, South Africa
Articles in the same Issue
- First letters to the editor in Botanica Marina's “Forum” section
- Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
- Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
- Persistence of sea urchin (Heliocidaris erythrogramma) barrens on the east coast of Tasmania: inhibition of macroalgal recovery in the absence of high densities of sea urchins
- Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
- Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
- The structure of sulfated galactans from selected species of New Zealand Champia
- The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
- The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
- Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
- The structure of polysaccharides from selected New Zealand species of Grateloupia
- The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
- Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
- Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
- Response to “Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans” by Anatolii I. Usov; Bot. Mar. 48 (2005): 178–180
- 8th International Phycological Congress 13–19 August 2005, Durban, South Africa
