HABs taxon details
original description
Nézan, E.; Siano, R.; Boulben, S.; Six, C.; Bilien, G.; Chèze, K.; Duval, A.; Le Panse, S.; Quéré, J.; Chomérat, N. (2014). Genetic diversity of the harmful family Kareniaceae (Gymnodiniales, Dinophyceae) in France, with the description of Karlodinium gentienii sp. nov.: A new potentially toxic dinoflagellate. <em>Harmful Algae.</em> 40: 75-91., available online at https://doi.org/10.1016/j.hal.2014.10.006 [details]
From regional or thematic species database
Description Cells ovoid in shape (13–19 μm long, 11–17 μm wide), almost circular in transverse section. Epicone conical, hypocone hemispherical. Cingulum displaced 25–31% of the cell length. Sulcus extending onto the epicone, and with an intercingular tubular structure. Yellow-green elongated chloroplasts (5–7) to the cell periphery, each with 1–2 pyrenoids. Nucleus roughly centrally located. Elongated ventral pore above the sulcal intrusion and close to the base of the apical groove. Apical groove with thick margins and extending briefly onto the dorsal epicone. Surface of the epicone with numerous parallel furrows. Numerous rows of round structures on the epicone and only two ones on the hypocone. Many dischargeable trichocysts (Nézan et al., 2014). [details]
Distribution K. gentienii is presently known only from Concarneau, France [details]
Toxicology Preliminary assays showed haemolytic activity of the original culture from France. There are no reports of this species causing problems in nature [details]
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