Spectral Properties of Marennine-like Pigments Reveal Minor Differences Between Blue Haslea Species and Strains [PDF]
MoleculesMarennine is the specific bluish pigment produced by the marine diatom Haslea ostrearia Gaillon (Simonsen), responsible for the greening of oysters in France’s Atlantic coast. For decades, H. ostrearia was considered the only blue diatom and described as
Amina Latigui +7 more
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Frontiers in Marine Science, 2022 Haslea ostrearia represents the model species of blue diatoms, a cluster of benthic marine species all belonging to the genus Haslea, noticeable for producing a blue pigment called marennine famous for its greening activity on the gills of bivalves but ...
Przemysław Dąbek +8 more
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Complex Relationships between the Blue Pigment Marennine and Marine Bacteria of the Genus Vibrio [PDF]
Marine Drugs, 2019 Marennine, the water-soluble blue pigment produced by the marine diatom Haslea ostrearia, is known to display antibacterial activities. Previous studies have demonstrated a prophylactic effect of marennine on bivalve larvae challenged with a pathogenic ...
Charlotte Falaise +5 more
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Isoprenoid biosynthesis in the diatoms Rhizosolenia setigera (Brightwell) and Haslea ostrearia (Simonsen). [PDF]
Proc Natl Acad Sci U S A, 2004 Isoprenoid biosynthesis in the widespread diatomaceous algae, Rhizosolenia setigera (Brightwell) and Haslea ostrearia (Simonsen), results not only in the production of diterpenoids, triterpenoids, and sterols but, unusually for diatoms, also in the production of sesterterpenoids. By using
Massé G, Belt ST, Rowland SJ, Rohmer M.
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Marennine, Promising Blue Pigments from a Widespread Haslea Diatom Species Complex [PDF]
Marine Drugs, 2014 In diatoms, the main photosynthetic pigments are chlorophylls a and c, fucoxanthin, diadinoxanthin and diatoxanthin. The marine pennate diatom Haslea ostrearia has long been known for producing, in addition to these generic pigments, a water-soluble blue
Romain Gastineau +25 more
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Diatoms synthesize sterols by inclusion of animal and fungal genes in the plant pathway. [PDF]
Sci Rep, 2020 Diatoms are ubiquitous microalgae that have developed remarkable metabolic plasticity and gene diversification. Here we report the first elucidation of the complete biosynthesis of sterols in the lineage.
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Overexpression of Key Sterol Pathway Enzymes in Two Model Marine Diatoms Alters Sterol Profiles in Phaeodactylum tricornutum. [PDF]
Pharmaceuticals (Basel), 2020 Sterols are a class of triterpenoid molecules with diverse functional roles in eukaryotic cells, including intracellular signaling and regulation of cell membrane fluidity.
Jaramillo-Madrid AC +5 more
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Scalable purification of marennine and other exopolymers from diatom Haslea ostrearia's “blue water” [PDF]
Algal ResearchMarennine is a bioactive, polydisperse and polyanionic compound produced by certain benthic diatoms of the Haslea genus. Notably, Haslea ostrearia are cultivated in photobioreactors, and their supernatant is collected to extract extracellular marennine ...
Bélanger, William +4 more
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Sterol Biosynthesis in Four Green Algae: A Bioinformatic Analysis of the Ergosterol Versus Phytosterol Decision Point. [PDF]
J Phycol, 2021 Animals and fungi produce cholesterol and ergosterol, respectively, while plants produce the phytosterols stigmasterol, campesterol, and β‐sitosterol in various combinations. The recent sequencing of many algal genomes allows the detailed reconstruction of the sterol metabolic pathways. Here, we characterized sterol synthesis in two sequenced Chlorella
Voshall A +7 more
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Isoprenoid biosynthesis in the diatom Haslea ostrearia [PDF]
New Phytologist, 2018 Summary Diatoms are eukaryotic, unicellular algae that are responsible for c. 20% of the Earth's primary production. Their dominance and success in contemporary oceans have prompted investigations on their distinctive metabolism and physiology. One metabolic pathway that remains largely unexplored in diatoms is isoprenoid biosynthesis, which is ...
Anastasia Athanasakoglou +9 more
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