Effect of environmental parameters on the content and sugar composition of sulfated polysaccharides in some tropical seagrass

Xuan-Vy Nguyen, Nhu-Thuy Nguyen-Nhat, Xuan-Thuy Nguyen, Khanh-Hy Le-Ho, Duc-Thinh Pham, Viet-Ha Dao
Author affiliations


  • Xuan-Vy Nguyen Institute of Oceanography, VAST, Vietnam; Graduate University of Science and Technology, VAST, Vietnam https://orcid.org/0000-0002-7260-5127
  • Nhu-Thuy Nguyen-Nhat Institute of Oceanography, VAST, Vietnam
  • Xuan-Thuy Nguyen Institute of Oceanography, VAST, Vietnam
  • Khanh-Hy Le-Ho Institute of Oceanography, VAST, Vietnam
  • Duc-Thinh Pham Nha Trang Institute of Technology Research and Aplication, Nha Trang city, Khanh Hoa, Vietnam
  • Viet-Ha Dao Institute of Oceanography, VAST, Vietnam; Graduate University of Science and Technology, VAST, Vietnam




Functional groups, salinity, seagrass, sulfated polysaccharides.


Seagrasses are a paraphyletic group of marine angiosperms that evolved three to four times from land plants and returned to the sea. Halophila ovalis, Thalassia hemprichii and Enhalus acoroides (Hydrocharitaceae) are species that can occur in wide salinity ranges. Sulfated polysaccharides (SPs) comprise a complex group of macromolecules with many critical biological functions. We assume that SP may play a role in salt tolerance in seagrass. In this study, three seagrass species collected in both rainy and dry seasons from the fields were analyzed to determine the total SP contents and different functional groups of SP. Quantification of total SP was done by photometric assays. High-performance anion-exchange chromatography with Pulsed Electrochemical Detection (HPAEC) determined different functional groups of SPs. The results indicated higher total SP contents in seagrass are present in plants at higher salinities and environmental temperatures. The percent of functional groups of SPs are present in the following order: glucose > galactose > arabinose > mannose > rhamnose > fucose. The order is not different between the two seasons.


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How to Cite

Nguyen, V. X., Nguyen Nhat, N. T., Nguyen, X. T., Le Ho, K. H., Pham, D. T., & Dao, V. H. (2023). Effect of environmental parameters on the content and sugar composition of sulfated polysaccharides in some tropical seagrass. Vietnam Journal of Marine Science and Technology, 23(3), 321–330. https://doi.org/10.15625/1859-3097/18053




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