Search results
Results from the WOW.Com Content Network
Dinoflagellate evolution has been summarized into five principal organizational types: prorocentroid, dinophysoid, gonyaulacoid, peridinioid, and gymnodinoid. [157] The transitions of marine species into fresh water have been frequent events during the diversification of dinoflagellates and have occurred recently.
Gambierdiscus toxicus is a species of photosynthetic unicellular eukaryote belonging to the Alveolata, part of the SAR supergroup.It is a dinoflagellate which can cause the foodborne illness ciguatera, [1] and is known to produce several natural polyethers including ciguatoxin, maitotoxin, gambieric acid, and gambierol.
Dinokaryota is a main grouping of dinoflagellates.They include all species where the nucleus remains a dinokaryon throughout the entire cell cycle, which is typically dominated by the haploid stage.
Amphidinium is a genus of dinoflagellates.The type for the genus is Amphidinium operculatum Claparède & Lachmann. The genus includes the species Amphidinium carterae which is used as a model organism.
Ceratium species belong to the group of dinoflagellates known as dinophysiales, meaning they contain armored plates. [2] They contain a pellicle, which is a shell, that is made from the cell membrane and vesicles; vesicles are composed of cross-linked cellulose , forming the plates. [ 2 ]
The dinoflagellate produces saxitoxin, which is a highly potent neurotoxin. If consumed, this toxin can cause paralytic shellfish poisoning (PSP). [ 7 ] By ingesting saxitoxin, humans can suffer from numbness, ataxia , incoherence, and in extreme cases respiratory paralysis and death.
The marine dinoflagellate genus Gambierdiscus occurs globally in tropic and subtropic regions. It mainly grows attached to macroalgae and coralline turfalgae. Thus, it does not form visible surface blooms like many other harmful dinoflagellate species (red tides).
L. polyedra Bioluminescing at Scripps Institution of Oceanography on September 29, 2011 (exposure: 1 sec / F2.8 / ISO 6400) Lingulodinium polyedra is a species of motile photosynthetic dinoflagellates. L. polyedra are often the cause of red tides in southern California, leading to bioluminescent displays on beaches at night.