Heterocapsa circularisquama
| Heterocapsa circularisquama | |
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| Species: | H. circularisquama
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| Heterocapsa circularisquama Horiguchi 1995
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Heterocapsa circularisquama is a species of dinoflagellates notable for the production of a biotoxin affecting marine fauna.[1][2] It is known to produce large red tides off western Japan, causing high bivalve mortality, particularly pearl oysters. It is very similar to Heterocapsa illdefina, however H. circularisquama carries six radiating ridges on its circular basal plate, and its scales have longer spines, among other subtle differences in morphology.
Description
Its cell is small and consists of a conical epitheca. The chloroplast is single and is connected to the unique pyrenoid. Its nucleus is elongated, located in the left side of the cell.[1]
References
- ^ a b Horiguchi, Takeo (1995). "Heterocapsa circularisquama sp. nov. (Peridiniales, Dinophyceae): A new marine dinoflagellate causing mass mortality of bivalves in Japan". Phycological Research. 43 (3): 129–136. doi:10.1111/j.1440-1835.1995.tb00016.x. ISSN 1322-0829.
- ^ Sato, Y (2002). "Photosensitizing hemolytic toxin in Heterocapsa circularisquama, a newly identified harmful red tide dinoflagellate". Aquatic Toxicology. 56 (3): 191–196. doi:10.1016/S0166-445X(01)00191-6. ISSN 0166-445X.
Further reading
- Mizumoto H, Tomaru Y, Takao Y, Shirai Y, Nagasaki K (2008). "Diverse responses of the bivalve-killing dinoflagellate Heterocapsa circularisquama to infection by a single-stranded RNA virus". Appl Environ Microbiol. 74 (10): 3105–11. doi:10.1128/AEM.02190-07. PMC 2394930. PMID 18359824.
- Basti, Leila; Go, Jiyoji; Higuchi, Keita; Nagai, Kiyohito; Segawa, Susumu (2011). "Effects of the Toxic DinoflagellateHeterocapsa circularisquamaon Larvae of the Pearl OysterPinctada Fucata Martensii(Dunker, 1873)". Journal of Shellfish Research. 30 (1): 177–186. doi:10.2983/035.030.0125. ISSN 0730-8000.
External links
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