Deasonia

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Deasonia
Deasonia sp. NAMSU 934-2 1d 04.png
Deasonia sp.
Scientific classification OOjs UI icon edit-ltr.svg
(unranked): Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Chlamydomonadales
Family: Actinochloridaceae
Genus: Deasonia
H. Ettl & J. Komárek, 1982 [1]
Type species
Deasonia prolifera
Species [1]

Deasonia is a genus of green algae, in the family Actinochloridaceae. [1] It is found in soils. [2]

Deasonia is a single-celled organism. Young cells are ellipsoidal or ovoid, while mature cells are consistently spherical with a smooth, thickened cell wall. In young cells, the chloroplast is cup-shaped and parietal, with an off-center pyrenoid; in mature cells, the chloroplast may have bifurcations and indentations and eventually forms an irregular network, with the pyrenoid in the center. Mature cells are multinucleate. [2]

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The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral- or ribbon-shaped in different species. Most of the members have one or more storage bodies called pyrenoids located in the chloroplast. Pyrenoids contain protein besides starch. Some green algae may store food in the form of oil droplets. They usually have a cell wall made up of an inner layer of cellulose and outer layer of pectose.

<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.

Actinochloris is a genus of green algae, in the family Actinochloridaceae, with a single species Actinochloris sphaerica. It is a subaerial to terrestrial alga.

Characiochloris is a genus of green algae in the family Characiochloridaceae. Characiochloris is epiphytic on freshwater algae, or found in soil.

<i>Characium</i> Genus of algae

Characium is a genus of green algae in the family Characiaceae. It is very commonly found in freshwater habitats, where it is attached to phytoplankton or zooplankton.

Planktosphaeria is a genus of green algae, specifically of the Chlorophyceae. It was first described by the phycologist Gilbert Morgan Smith in 1918, with Planktosphaeria gelatinosa as its type species. Species of Planktosphaeria are commonly found in freshwater plankton around the world.

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

Pseudomuriella is a genus of green algae, specifically of the class Chlorophyceae. It is the sole genus of the family Pseudomuriellaceae. It is a terrestrial alga that inhabits soils.

<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>Schroederia</i> (alga) Genus of algae

Schroederia is a genus of green algae in the family Schroederiaceae. Schroederiaceae is a monotypic taxon; Schroederia is its only genus.

Treubaria is a genus of green algae, the sole genus in the family Treubariaceae. Treubaria is found in freshwater habitats and has a cosmopolitan distribution.

Actinochloridaceae is a family of green algae, in the order Chlamydomonadales.

<i>Actidesmium</i> Genus of algae

Actidesmium is a small genus of green algae in the family Characiaceae. It was described by the German phycologist Paul Friedrich Reinsch in 1875.

Characiellopsis is a genus of green algae in the family Characiaceae. Two species are known: Characiellopsis anophelesii and Characiellopsis skujae.

Deuterocharacium is a genus of green algae in the family Characiaceae. It is found in freshwater habitats, attached to algae or detritus. It is rare and has only been recorded from Europe.

Chlorotetraedron is a genus of green algae, in the family Neochloridaceae. The name may also be written as Chlorotetraëdon. It is found as freshwater plankton or in soil.

Korshikoviella is a genus of green algae in the family Characiaceae.

Pseudodictyochloris is a genus of green algae, in the family Actinochloridaceae. It is found in soils.

<i>Chlorokybus</i> Genus of basal green algae

Chlorokybus is a multicellular (sarcinoid) genus of basal green algae or charophyte. It has been classified as the sole member of the family Chlorokybaceae, which is the sole member of the order Chlorokybales, in turn the sole member of the class Chlorokybophyceae. It grows on soil and rock surfaces, and is rare.

Bracteamorpha is a genus of green algae in the order Sphaeropleales, and is the only genus in the family Bracteamorphaceae. It contains a single species, Bracteamorpha trainorii.

References

  1. 1 2 3 Guiry, M.D.; Guiry, G.M. "Deasonia". AlgaeBase . World-wide electronic publication, National University of Ireland, Galway. Retrieved 2022-02-23.
  2. 1 2 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.