Eudorina
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''Eudorina'' is a paraphyletic
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
in the volvocine green algae clade. Eudorina colonies consist of 16, 32 or 64 individual cells grouped together. Each individual cell contains flagella which allow the colony to move as a whole when the individual cells beat their flagella together. Description by GM Smith (1920, p 95):Smith, GM. Phytoplankton of Inland Lakes of Wisconsin, Part I, Wisconsin Geological and Natural History Survey, Madison, WI. (1920).


Description

''Eudorina'' colonies typically consist of 16, 32 or 64 cells, each of which is similar to ''
Chlamydomonas reinhardtii ''Chlamydomonas reinhardtii'' is a single-cell green alga about 10 micrometres in diameter that swims with two flagella. It has a cell wall made of hydroxyproline-rich glycoproteins, a large cup-shaped chloroplast, a large pyrenoid, and an eye ...
''. These cells are bedded within an extracellular matrix composed of glycoproteins. Colonies are spherical and motile, with motility derived from the flagellated individual cells. ''Eudorina'' is facultatively sexual, meaning colonies can reproduce either sexually or asexually. During development, each ''Chlamydomonas''-like cell undergoes several rounds of division to form plakeas, which then invert to form daughter colonies before hatching out of the mother colony.


References


External links


Eudorina
- Description with pictures Yamada, T.Y, Miyaja,K. and Nisayoshi, N. 2008. A taxonomic study of ''Eudorina unicocca'' (Volvocaceae, Chlorophyceae) and related species, based on morphology and molecular phylogeny. ''Eur. L.Phycol.'' 43: 317 - 326. Chlamydomonadales Chlamydomonadales genera {{Chlorophyceae-stub