Chrysolaminarin

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title: "Chrysolaminarin" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["polysaccharides"] topic_path: "general/polysaccharides" source: "https://en.wikipedia.org/wiki/Chrysolaminarin" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

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Chrysolaminarin is a linear polymer of β(1→3) and β(1→6) linked glucose units in a ratio of 11:1. It used to be known as leucosin.

Function

Chrysolaminarin is a storage polysaccharide typically found in photosynthetic heterokonts. It is used as a carbohydrate food reserve by phytoplankton such as Bacillariophyta (similar to the use of laminarin by brown algae).

Chrysolaminarin is stored inside the cells of these organisms dissolved in water and encapsuled in vacuoles whose refractive index increases with chrysolaminarin content. In addition, heterokont algae use oil as a storage compound. Besides energy reserve, oil helps the algae to control their buoyancy.

Chrysolaminarin is also the major storage polysaccharide of most haptophyte algae.

References

References

  1. Beattie. (1961). "Studies on the metabolism of the Chrysophyceae. Comparative structural investigations on leucosin (chrysolaminarin) separated from diatoms and laminarin from the brown algae". Biochem. J..
  2. [http://comenius.susqu.edu/biol/202/Protists/terms/chrysolaminarin.htm Basic definition of chrysolaminarin] {{Webarchive. link. (2016-03-04 , Susquehanna University)
  3. [http://arnica.csustan.edu/boty1050/Protista/protista.htm Biological use of chrysolaminarin] {{Webarchive. link. (1998-05-02 , California State University, Stanislaus)
  4. Pulz. (2004). "Valuable products from biotechnology of microalgae". Applied Microbiology and Biotechnology.
  5. Tsuji, Yoshinori. (2017). "Advances in Botanical Research". Elsevier.
  6. Penot, Mathias. (2022-12-31). "Genomic and meta-genomic insights into the functions, diversity and global distribution of haptophyte algae". Applied Phycology.

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polysaccharides