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The structure of sulfated galactans from selected species of New Zealand Champia

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Published/Copyright: July 5, 2005
Botanica Marina
From the journal Volume 48 Issue 2

Abstract

Sulfated galactans were extracted from three samples of Champia novae-zealandiae from different environments, from Champia chatamensis and from Champia laingii, and their structural features were evaluated by 13C NMR spectroscopy and by chemical analysis. The polysaccharides were similar, each containing diads with backbones of 3-linked D-galactose and 4-linked D- and 4-linked L-galactose, with the L-galactose predominating. The major component of each extract was the diad 3-linked D-galactose-2-sulfate and 4-linked L-galactose-2,3-disulfate, which was separable from other polymers that contained 3-linked 6-O-methyl-D-galactose, 3-linked pyruvylated D-galactose, 4-linked galactose-2,3,6-trisulfate and 3-linked D-galactose-2,4,6-trisulfate. The 13C NMR spectra of the methylated, and methylated then desulfated derivatives of the predominant polymer were recorded and provisionally assigned. Accordingly, the extract is a mixture of polymers, and since it appears that every thallus produced some of each substitution pattern, it is likely that none of these substitution patterns will be of chemotaxonomic interest at the species level.

Keywords: Champia; galactans; phycocolloids; Rhodymeniales
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References

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Published Online: 2005-07-05
Published in Print: 2005-04-01

© Walter de Gruyter Berlin New York

Articles in the same Issue

  1. First letters to the editor in Botanica Marina's “Forum” section
  2. Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
  3. Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
  4. 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
  5. Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
  6. Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
  7. The structure of sulfated galactans from selected species of New Zealand Champia
  8. The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
  9. The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
  10. Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
  11. The structure of polysaccharides from selected New Zealand species of Grateloupia
  12. The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
  13. Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
  14. Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
  15. 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
  16. 8th International Phycological Congress 13–19 August 2005, Durban, South Africa
https://doi.org/10.1515/BOT.2005.013
Keywords for this article
Champia; galactans; phycocolloids; Rhodymeniales

Articles in the same Issue

  1. First letters to the editor in Botanica Marina's “Forum” section
  2. Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico
  3. Spatio-temporal variability of intertidal algal assemblages of the Slovenian coast (Gulf of Trieste, northern Adriatic Sea)
  4. 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
  5. Biomass and taxonomic richness of epilithic cyanobacteria in a tropical intertidal rocky habitat
  6. Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach
  7. The structure of sulfated galactans from selected species of New Zealand Champia
  8. The structure of the galactan from Aeodes nitidissima (Halymeniales, Rhodophyta)
  9. The structure of the polysaccharide from Grateloupia intestinalis in New Zealand
  10. Evaluation of the structures of polysaccharides from three taxa in the genus Hymenena and from Acrosorium decumbens (Rhodophyta, Delesseriaceae)
  11. The structure of polysaccharides from selected New Zealand species of Grateloupia
  12. The application of 13C NMR spectroscopy to the red algal polysaccharides of selected New Zealand species of Lomentaria
  13. Pseudovivipary, a new form of asexual reproduction in the seagrass Posidonia oceanica
  14. Comments on the papers by Ian J. Miller devoted to carbon-13 NMR spectroscopy of red algal galactans
  15. 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
  16. 8th International Phycological Congress 13–19 August 2005, Durban, South Africa
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