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Prymnesium
''Prymnesium'' is a genus of haptophytes, including the species '' Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name Latinizes the Greek ' ‘cable (for mooring)’, from ' ‘stern’, from ' ‘hindmost’. ''Prymnesium'' was likely first recognized and drawn (although not named as such) on July 1, 1920, and then (seemingly independently) officially named shortly afterwards on July 6, 1920. Morphology Species The taxonomy of Prymnesiales Prymnesiales is an order of Haptophyceae. It currently consists of three families: * Prymnesiaceae * Chrysochromulinaceae * Chrysoculteraceae References Haptophyte orders Haptista orders {{Haptophyte-stub ... was revised in 2011. With this revision, ten additional species were added to the genus, namely '' P. neolepis'' (previously assigned to '' Hyalolithus''), '' P. palpebrale'', '' P. polylepis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesium Palpebrale
''Prymnesium'' is a genus of haptophytes, including the species ''Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name Latinizes the Greek ' ‘cable (for mooring (watercraft), mooring)’, from ' ‘stern’, from ' ‘hindmost’. ''Prymnesium'' was likely first recognized and drawn (although not named as such) on July 1, 1920, and then (seemingly independently) officially named shortly afterwards on July 6, 1920. Morphology Species The taxonomy of Prymnesiales was revised in 2011. With this revision, ten additional species were added to the genus, namely ''Prymnesium neolepis, P. neolepis'' (previously assigned to ''Hyalolithus''), ''Prymnesium palpebrale, P. palpebrale'', ''Prymnesium polylepis, P. polylepis'', ''Prymnesium kappa, P. kappa'', ''Prymnesium chiton, P. chiton'', ''Prymnesium minus, P. minus'' (previously assigned to ''Chrysochromul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesium Kappa
''Prymnesium'' is a genus of haptophytes, including the species '' Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name Latinizes the Greek ' ‘cable (for mooring)’, from ' ‘stern’, from ' ‘hindmost’. ''Prymnesium'' was likely first recognized and drawn (although not named as such) on July 1, 1920, and then (seemingly independently) officially named shortly afterwards on July 6, 1920. Morphology Species The taxonomy of Prymnesiales was revised in 2011. With this revision, ten additional species were added to the genus, namely '' P. neolepis'' (previously assigned to '' Hyalolithus''), '' P. palpebrale'', '' P. polylepis'', '' P. kappa'', '' P. chiton'', '' P. minus'' (previously assigned to '' Chrysochromulina''), '' P. neustophilum'', '' P. pienaarii'', '' P. pigrum'', and '' P. simplex'' (previously assigned to '' Platychrysis''). * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesium Parvum
''Prymnesium parvum'' is a species of haptophyte (also collectively called Prymnesiophyta). The species is of concern because of its ability to produce the phycotoxin prymnesin. It is a flagellated alga that is normally found suspended in the water column. It was first identified in North America in 1985, but it is not known if it was introduced artificially (e.g., an invasive species) or missed in previous surveys. Toxin production mainly kills fish and appears to have little effect on cattle or humans. This distinguishes it from a red tide, which is an algal bloom whose toxins lead to harmful effects in people. Although no harmful effects are known, it is recommended not to consume dead or dying fish exposed to a ''P. parvum'' bloom. ''Prymnesium parvum'' of Haptophyta is sometimes colloquially misnamed "golden alga" causing confusion with golden alga or Chrysophyceae of Heterokontophyta, leading to contradictions in terms, especially in non-scholarly texts (such as those f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haptophyte
The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta (named for '' Prymnesium''), are a clade of algae. The names Haptophyceae or Prymnesiophyceae are sometimes used instead. This ending implies classification at the class rank rather than as a division. Although the phylogenetics of this group has become much better understood in recent years, there remains some dispute over which rank is most appropriate. Characteristics The chloroplasts are pigmented similarly to those of the heterokonts, but the structure of the rest of the cell is different, so it may be that they are a separate line whose chloroplasts are derived from similar red algal endosymbionts. Haptophyte chloroplasts contain chlorophylls a, c1, and c2 but lack chlorophyll b. For carotenoids, they have beta-, alpha-, and gamma- carotenes. Like diatoms and brown algae, they have also fucoxanthin, an oxidized isoprenoid derivative that is likely the most important driver of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
