Prymnesium | |
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Illustration | |
Scientific classification | |
Domain: | Eukaryota |
Clade: | Diaphoretickes |
Phylum: | Haptista |
Subphylum: | Haptophytina |
Class: | Prymnesiophyceae |
Order: | Prymnesiales |
Family: | Prymnesiaceae |
Genus: | Prymnesium Massart, 1920 emend. Edvardsen, Eikrem & Probert, 2011 [1] |
Prymnesium is a genus of haptophytes, including the species Prymnesium parvum . [2] 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. [3]
The name Latinizes the Greek prymnēsion ‘cable (for mooring)’, [4] [5] from prymna ‘stern’, from prymnos ‘hindmost’. [6] [ self-published source ]
Prymnesium was likely first recognized and drawn (although not named as such) on July 1, 1920, [7] and then (seemingly independently) officially named shortly afterwards on July 6, 1920. [8]
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 ). [1]
The Stramenopiles, also called Heterokonts, are a clade of organisms distinguished by the presence of stiff tripartite external hairs. In most species, the hairs are attached to flagella, in some they are attached to other areas of the cellular surface, and in some they have been secondarily lost. Stramenopiles represent one of the three major clades in the SAR supergroup, along with Alveolata and Rhizaria.
Coccolithophores, or coccolithophorids, are single-celled organisms which are part of the phytoplankton, the autotrophic (self-feeding) component of the plankton community. They form a group of about 200 species, and belong either to the kingdom Protista, according to Robert Whittaker's five-kingdom system, or clade Hacrobia, according to a newer biological classification system. Within the Hacrobia, the coccolithophores are in the phylum or division Haptophyta, class Prymnesiophyceae. Coccolithophores are almost exclusively marine, are photosynthetic, and exist in large numbers throughout the sunlight zone of the ocean.
The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta, are a clade of algae.
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Symsagittifera roscoffensis, also called the Roscoff worm, the mint-sauce worm, or the shilly-shally worm, is a marine worm belonging to the phylum Xenacoelomorpha. The origin and nature of the green color of this worm stimulated the intrigued zoologists in the 1870's. It was discovered that the coloring resulted from the symbiosis between the animal and a green micro-algae, the species Tetraselmis convolutae, hosted under its epidermis. It is the photosynthetic activity of the micro-algae in hospite that provides the essential nutrients for the worm. This partnership is called photosymbiosis, from "photo", "light", and symbiosis "who lives with". These photosynthetic marine animals live in colonies on the tidal zone.
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prymnesium: The post wherevnto the cable of a ship is tyed. The cable it selfe. [The post unto which the cable of a ship is tied; the cable itself.]
Prymnesium (Gr. prymnesion, stern-cable) is a single-celled flagellate.
proís < Cat. prois < VL. *prodesium < L. prymnēsium [...]