Amphikrikos

Last updated

Amphikrikos
Scientific classification OOjs UI icon edit-ltr.svg
Clade: Viridiplantae
Division: Chlorophyta
Class: Trebouxiophyceae
Order: Chlorellales
Family: Oocystaceae
Genus: Amphikrikos
Korshikov
Type species
Amphikrikos minutissimus
Korshikov
Species [1]

Amphikrikos is a genus of algae in the family Oocystaceae. [2] It is found in freshwater and has been reported from most continents. [1]

Amphikrikos consists of solitary, planktonic cells about 3–13 μm long and 2–9 μm wide. Cells are barrel-shaped, cylindrical, ellipsoid or broadly oval, with rounded poles. The cell may be surrounded by a thin, structureless mucilage layer. The cell wall is smooth, or covered with dark-brown incrustations on the surface which appear as granules or ribs, mainly near the equator and poles of the cell. Cells contain one (or two) chloroplasts, which is/are parietal and may have or lack a pyrenoid. Asexual reproduction occurs by the formation of typically four (rarely 2 or 8) autospores per cell; these are released through a tear in the mother cell wal. [1] [3]

Related Research Articles

<span class="mw-page-title-main">Selenastraceae</span> Family of algae

Selenastraceae is a family of green algae in the order Sphaeropleales. Members of this family are common components of the phytoplankton in freshwater habitats worldwide. A few species have been found in brackish and marine habitats, such as in the Baltic Sea.

Asteromonas is a genus of green algae in the family Asteromonadaceae. It has been described from saline, marine, and brackish environments. It is closely related to the genus Dunaliella, another genus common in saline waters.

Atractomorpha is a genus in the Sphaeropleaceae, a family of green algae. The genus name is derived from Greek and means "spindle-shaped" or "arrow-shaped", and refers to the shape of the cells.

<i>Chlamydocapsa</i> Genus of algae

Chlamydocapsa is a genus of green algae, specifically of the Chlorophyceae.

<i>Closteriopsis</i> Genus of algae

Closteriopsis is a genus of green algae in the family Chlorellaceae. It is planktonic in freshwater habitats, and is widespread.

Coelastropsis is a genus of green algae in the family Scenedesmaceae, containing the single species Coelastropsis costata. It is found in freshwater lakes and bogs, usually associated with mosses and filamentous algae. It has been recorded in Europe, Cuba and possibly New Zealand.

Dicloster is a genus of green algae in the family Chlorellaceae, containing the sole species Dicloster acuatus. It is found in freshwater habitats as plankton, and is distributed around the world.

<i>Didymogenes</i> Genus of algae

Didymogenes is a genus of microscopic green algae in the class Trebouxiophyceae. It is a planktonic species found in freshwater habitats worldwide. Formerly placed in the family Scenedesmaceae, molecular studies have placed it in the family Chlorellaceae.

<i>Dimorphococcus</i> Genus of algae

Dimorphococcus is a genus of fresh water green algae in the family Scenedesmaceae. It is found as a component of the phytoplankton of freshwater ponds, lakes, and peat bogs. It is widespread, but usually not very common.

Enallax is a genus of green algae in the family Scenedesmaceae. It is found in freshwater habitats, such as peat bogs or wet rocks.

<i>Eremosphaera</i> Genus of algae

Eremosphaera is a genus of green algae in the family Oocystaceae. It was first described by Heinrich Anton de Bary in 1858, who thought it was a desmid. Since then, many authors have debated its classification, until its modern placement in the family Oocystaceae.

<i>Lagerheimia</i> Genus of algae

Lagerheimia is a genus of green algae in the family Oocystaceae. It is commonly found in freshwater habitats all over the world, although some species are rare and have only been recorded from Europe or the United States.

<i>Lobosphaera</i> Genus of algae

Lobosphaera is a genus of green algae in the family Trebouxiaceae. It was originally described from soils in Austria, but has since been found in freshwater habitats and as a symbiont within lichens.

Neodesmus is a genus of green algae in the family Scenedesmaceae.

Podohedriella is a genus of green algae in the family Selenastraceae. It is found in freshwater habitats or on damp wood.

<i>Quadrigula</i> Genus of algae

Quadrigula is a genus of green algae in the family Selenastraceae. It is commonly found in freshwater habitats as phytoplankton.

<i>Schroederiella</i> Genus of algae

Schroederiella is a genus of green algae in the family Scenedesmaceae.

<i>Sphaeroplea</i> Genus of algae

Sphaeroplea is a genus of green algae in the family Sphaeropleaceae. It was first circumscribed by the Swedish botanist Carl Adolph Agardh in 1824.

<i>Xanthidium</i> Genus of algae

Xanthidium is a genus of green algae, specifically of the Desmidiaceae.

<i>Tetradesmus obliquus</i> Species of green algae

Tetradesmus obliquus is a green algae species of the family Scenedesmaceae. It is commonly known by its synonym, Scenedesmus obliquus. It is a common species found in a variety of freshwater habitats.

References

  1. 1 2 3 Guiry, M.D.; Guiry, G.M. "Amphikrikos". AlgaeBase . University of Galway . Retrieved 2025-01-30.
  2. ↑ See the NCBI webpage on Amphikrikos. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information . Retrieved 2007-03-19.
  3. ↑ Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. ISBN   978-0-12-385876-4.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.