| Deuterocharacium | |
|---|---|
Scientific classification  | |
| Clade: | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Characiaceae |
| Genus: | Deuterocharacium Petrý-Hesse, 1969 |
| Type species | |
| Deuterocharacium polyplastidicum Petrý-Hesse [1] | |
| Species [1] | |
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. [1]
Deuterocharacium consists of solitary cells that are attached to a substrate via a short mucilaginous pad or a pedicel. Cells are 30-50 μm long and 6-12 μm wide, cylindrical to ovoid, with a rounded or pointed tip. Cells have many small, discoid chloroplasts lining the inside of the cell membrane, which lack pyrenoids. Deuterocharacium has been described as uninucleate (i.e. containing a single nucleus); [1] other sources state the adult cells are multinucleate, [2] but this may be before the zoospores are formed. No eyespot is present. [1]
Deuterocharacium reproduces asexually; sexual reproduction has not been observed in this genus. It obligately produces zoospores which have two flagella and a single chloroplast containing a pyrenoid. Zoospores are produced in groups of 32 to 128, and are released through a tear in the mother cell wall. [1]
Similar genera include Characium and Pseudochlorothecium . Characium differs in having chloroplasts with pyrenoids. It differs from Pseudochlorothecium in that it does not reproduce via autospores, only via zoospores. [1]
Within Deuterocharacium, two species are known, D. polyplastidicum and D. fallax, which differ based on the shape of the cells. [2]
Characiochloris is a genus of green algae in the family Characiochloridaceae. Characiochloris is epiphytic on freshwater algae, or found in soil.
Characiopodium is a genus of green algae in the family Sphaeropleaceae. It occurs in soils.
Characiosiphon is a genus of green algae in the family Characiosiphonaceae. It contains a single species, Characiosiphon rivularis.
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.
Lobocharacium is a genus of green algae in the family Characiosiphonaceae. It contains the single species Lobocharacium coloradoense. It has been isolated from a pond in Colorado, United States.
Neochloris is a genus of green algae in the family Neochloridaceae. It is found in freshwater aquatic and terrestrial soil habitats.
Polyedriopsis is a genus of green algae in the order Sphaeropleales. As of February 2022, it contained a single species, Polyedriopsis spinulosa. It is found worldwide in freshwater habitats as phytoplankton, but is rare.
Pseudoschroederia is a genus of green algae in the family Characiaceae. It is planktonic in freshwater habitats, and probably has a cosmopolitan distribution. The genus Pseudoschroederia was circumscribed by Eberhard Hegewald and Eberhard Schnepf in 1986. The genus was distinguished from the similar Schroederia by being heteropolar and differing cell structure. However, some authors do not consider the genera to be separate.
Schroederia is a genus of green algae in the family Schroederiaceae. Schroederiaceae is a monotypic taxon; Schroederia is its only genus.
Sphaeroplea is a genus of green algae in the family Sphaeropleaceae. It was first circumscribed by the Swedish botanist Carl Adolph Agardh in 1824.
Tetraedron is a genus of green algae in the family Hydrodictyaceae. It may also be spelled as Tetraëdron.
Characiellopsis is a genus of green algae in the family Characiaceae. Two species are known: Characiellopsis anophelesii and Characiellopsis skujae.
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.
Follicularia is a genus of green algae, in the family Schizochlamydaceae. It is found in terrestrial habitats, mainly soil.
Korshikoviella is a genus of green algae in the family Characiaceae.
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.
Cecidochloris is a green algae genus in the family Chlorangiellaceae. It occurs in freshwater. However, it has only been reported so far from Europe, with an additional species from India that is incompletely described.
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.
Apiocystis is a genus of algae belonging to the family Tetrasporaceae. It is found attached to freshwater aquatic algae or plants. The species of this genus are found in Europe and Northern America, and are widespread but generally uncommon.
Chlorangiella is a genus of microscopic green algae, the type genus of the family Chlorangiellaceae. The name Chlorangiella was coined by Giovanni Battista de Toni in 1889. It is a nomen novum for Chlorangium F.Stein.
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