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Ecological and evolutionary diversification of sulphated polysaccharides in diverse photosynthetic lineages: A review

期刊

CARBOHYDRATE POLYMERS
卷 277, 期 -, 页码 -

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ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118764

关键词

Algae; Cell wall; Seagrass; Sulphated polysaccharide; Photosynthetic organisms

资金

  1. Ministry of Science, Technology and Innovation (MOSTI) of Malaysia under eScience fund [02-01-04-SF1282]

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This review examines the taxonomic distribution and composition of sulphated polysaccharides (SPs) in different photosynthetic organisms, and explores the association between SP production and evolutionary history and environmental stresses. The genes/proteins involved in SP biosynthesis are also reviewed.
Sulphated polysaccharides (SPs) are carbohydrate macromolecules with sulphate esters that are found among marine algae, seagrasses, mangroves and some terrestrial plants. The sulphate concentration in the ocean (28 mM) since ancient time could have driven the production of SPs in marine algae. SPs have a gelatinous property that can protect marine algae against desiccation and salinity stress. Agar and carrageenan are red algal SPs that are widely used as gelling agents in the food and pharmaceutical industries. The information on the SPs from freshwater and land plants are limited. In this review, we reviewed the taxonomic distribution and composition of SPs in different photosynthetic lineages, and explored the association of SP production in these diversified photosynthetic organisms with evolution history and environmental stresses. We also reviewed the genes/proteins involved in SP biosynthesis. Insights into SP biosynthetic machinery may shed light on the evolution that accompanied adaptation to life on earth.

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