Unique Dynamics of Paramylon Storage in the Marine Euglenozoan Diplonema papillatum
Language English Country Germany Media print-electronic
Document type Journal Article
PubMed
32087573
DOI
10.1016/j.protis.2020.125717
PII: S1434-4610(19)30071-9
Knihovny.cz E-resources
- Keywords
- diplonemids, paramylon, paramylon synthase., trehalose, β-1,3-glucan,
- MeSH
- Ecosystem * MeSH
- Euglenozoa MeSH
- Eukaryota MeSH
- Glucans chemistry MeSH
- Meiotic Prophase I * MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Glucans MeSH
- paramylon MeSH Browser
Diplonemids belong to the most diverse and abundant marine protists, which places them among the key players of the oceanic ecosystem. Under in vitro conditions, their best-known representative Diplonema papillatum accumulates in its cytoplasm a crystalline polymer. When grown under the nutrient-poor conditions, but not nutrient-rich conditions, D. papillatum synthesizes a β-1,3-glucan polymer, also known as paramylon. This phenomenon is unexpected, as it is in striking contrast to the accumulation of paramylon in euglenids, since these related flagellates synthesize this polymer solely under nutrient-rich conditions. The capacity of D. papillatum to store an energy source in the form of polysaccharides when the environment is poor in nutrients is unexpected and may contribute to the wide distribution of these protists in the ocean.
Faculty of Natural Sciences Comenius University Bratislava Slovakia
Institute of Entomology Biology Centre Czech Academy of Sciences České Budějovice Czech Republic
Institute of Parasitology Biology Centre Czech Academy of Sciences České Budějovice Czech Republic
References provided by Crossref.org
Trophic flexibility of marine diplonemids - switching from osmotrophy to bacterivory
Highly flexible metabolism of the marine euglenozoan protist Diplonema papillatum
Catalase and Ascorbate Peroxidase in Euglenozoan Protists
