29433D

29433D
Description: Toxic marine dinoflagellate (Karenia brevis). Karenia brevis (previously known as Gymnodinium breve and Ptychodiscus brevis) is a marine dinoflagellate (microalga) that causes an algal bloom known as toxic red tide (red tide bloom). Dinoflagellates are microscopic, unicellular, flagellated, often photosynthetic protists (algae). K. brevis is a gymnodinioid dinoflagellate with an equatorial groove or girdle containing one flagellum (undulating flagellum) and a second flagellum that trails behind the cell. This dinoflagellate produces a toxin called brevetoxin, which affects the central nervous system of fish. People can become ill with neurotoxic shellfish poisoning (NSP) when they eat shellfish that have accumulated brevetoxin and can also experience respiratory irritation (coughing, sneezing, and tearing) when a red tide bloom is present close to shore. K. brevis has come to be known as the Florida gulf coast red tide organism, it has been implicated in blooms on Florida’s east coast. It has also been implicated in red tide blooms in Louisiana, Texas, Mississippi, Mexico, and the Carolinas.
Type: SEM
Magnification:* x1,065
Copyright 2011 Dennis Kunkel Microscopy, Inc.
Keywords: 29433D,algae,alga,dinoflagellate,dinoflagellates,Karenia brevis,toxic bloom,toxic,marine toxic bloom,red tide,Florida red tide,marine plankton,plankton,Scott marine plankton,phytoplankton,SEM,marine alga,marine algae,marine dinoflagellate,marine dinoflagellates,marine phytoplankton,marine planton,planktonic,red tide dinoflagellate,red tide dinoflagellates,red tide organism,red tide organisms,toxic blooms,marine toxin,salt water alga,salt water algae,saltwater alga,saltwater algae,sea water alga,sea water algae,seawater alga,seawater algae,toxic blooming algae,toxic marine alga,toxic marine algae,Gymnodinium breve,Karenia,Gymnodinium,Ptychodiscus,Ptychodiscus brevis,microalga,microalgae,algae bloom,algae blooms,algal bloom,algal blooms,gymnodinioid,gymnodinioid dinoflagellate,gymnodinioid dinoflagellates,red tide bloom,red tides,06.01.11,NSP,neurotoxic,neurotoxic poisoning,neurotoxic shellfish,neurotoxic shellfish poisoning,neurotoxin,bloom dinoflagellate,bloom dinoflagellates,toxic dinoflagellate,toxic dinoflagellates,marine protist,marine protists,protist,protists,gymnodinioids,flagella,flagellum,undulating flagella,undulating flagellum,algae toxin,algae toxins,algal toxin,algal toxins,brevetoxin,brevetoxins,toxin,toxins,Florida gulf coast red tide organism,Florida red tide bloom,Florida red tide blooms,Florida red tides,respiratory distress,respiratory irritation,alga bloom,alga blooms,alga toxin,alga toxins,eukaryote,eukaryotic