Treubaria

Last updated

Treubaria
Scientific classification OOjs UI icon edit-ltr.svg
(unranked): Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Sphaeropleales
Family: Treubariaceae
Genus: Treubaria
C.Bernard
Species

See text

Treubaria is a genus of green algae, the sole genus in the family Treubariaceae. [1] Treubaria is found in freshwater habitats and has a cosmopolitan distribution. [2]

Contents

The genus was circumscribed by Charles Jean Bernard in Protococ. Desmid. Eau Douce 5–6, 12, 169 in 1908.

The genus name of Treubaria is in honour of Melchior Treub (1851–1910), who was a Dutch botanist. He worked at the Bogor Botanical Gardens in Buitenzorg on the island of Java, south of Batavia, Dutch East Indies, gaining renown for his work on tropical flora. [3]

Description

Treubaria consists of single cells that are planktonic. The protoplast is 5–22 μm in diameter, spherical to multi-lobed, with 3–4 (sometimes up to 20) hollow, conical or tubular spines (up to 83 μm long) radiating from the cells. Cells are uninucleate when young, but have up to four or five nuclei when mature. They have one chloroplast when young; chloroplasts have one (or multiple) pyrenoids. [2]

Treubaria reproduces asexually; sexual reproduction has not been observed in Treubaria. Asexual reproduction typically occurs through the formation of autospores; four autospores are produced per cell. One species is known to produce zoospsores. Two, four, or eight zoospores are produced per cell, each with four flagella. [2]

Classification

The classification of Treubaria is currently unclear. Currently, the taxonomy of green algae is in flux because morphological characteristics do not align with phylogenetic relationships. Phylogenetically, Treubaria forms a close relationship with Cylindrocapsa , Elakatothrix , and Trochiscia . All four genera share ultrastructural features such as pyrenoids where the matrix is penetrated by cytoplasmic invaginations, and Cylindrocapsa produces quadriflagellate zoospores. However, the genera share litle else in common, making a coherent classification difficult. [4]

Species

As accepted by WoRMS; [5]

Former species;

Species of Treubaria are identified based on morphological characteristics such as the shape of the protoplast and the shape and number of spines. However, all species are very polymorphic and require further revisions. [2]

Related Research Articles

<span class="mw-page-title-main">Chlorophyceae</span> Class of green algae

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">Chlamydomonadales</span> Order of green algae

Chlamydomonadales, also known as Volvocales, are an order of flagellated or pseudociliated green algae, specifically of the Chlorophyceae. Chlamydomonadales can form planar or spherical colonies. These vary from Gonium up to Volvox. Each cell has two flagella, and is similar in appearance to Chlamydomonas, with the flagella throughout the colony moving in coordination.

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

Characiochloridaceae is a family of green algae in the order Chlamydomonadales.

<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.

Characiosiphon is a genus of green algae in the family Characiosiphonaceae. It contains a single species, Characiosiphon rivularis.

<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.

<i>Kirchneriella</i> Genus of algae

Kirchneriella is a genus of green algae in the family Selenastraceae. It is found in freshwater habitats, as phytoplankton or metaphyton.

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.

<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.

<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>Tetraedron</i> Genus of algae

Tetraedron is a genus of green algae in the family Hydrodictyaceae. It may also be spelled as Tetraëdron.

Gilbertsmithia is a genus of green algae in the family Scenedesmaceae, containing the single species Gilbertsmithia grandis. It was named after the American botanist Gilbert Morgan Smith. This remarkable alga has only been recorded once from a muddy rainwater pool in Madras, India.

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

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.

<i>Marthea</i> Genus of algae

Marthea is a genus of green algae in the family Characiaceae, containing the single species Marthea tetras. It is an extremely rare genus; it has only been recorded once, as freshwater phytoplankton from its original locality in the Bohemian Forest region of the Czech Republic.

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.

<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. ↑ See the NCBI webpage on Treubaria. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information . Retrieved 2007-03-19.
  2. 1 2 3 4 Guiry, M.D.; Guiry, G.M. "Treubaria". AlgaeBase . World-wide electronic publication, National University of Ireland, Galway. Retrieved 2023-12-08.
  3. ↑ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names](pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN   978-3-946292-41-8. S2CID   246307410 . Retrieved January 27, 2022.
  4. ↑ Buchheim, Mark A.; Michalopulos, Eugenia A.; Buchheim, Julie A. (2001). "Phylogeny of the Chlorophyceae with special reference to the Sphaeropleales: a study of 18S and 26S rDNA data". Journal of Phycology. 37 (5): 819–835. Bibcode:2001JPcgy..37..819B. doi: 10.1046/j.1529-8817.2001.00162.x . S2CID   84617219.
  5. ↑ "Treubaria C.Bernard, 1908". www.marinespecies.org. WoRMS - World Register of Marine Species. Retrieved 25 November 2022.


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.