Related Research Articles
The alveolates are a group of protists, considered a major clade and superphylum within Eukarya. They are currently grouped with the stramenopiles and Rhizaria among the protists with tubulocristate mitochondria, the group being referred to as SAR.
Heterokonts are a group of protists. The group is a major line of eukaryotes. Most are algae, ranging from the giant multicellular kelp to the unicellular diatoms, which are a primary component of plankton. Other notable members of the Stramenopiles include the (generally) parasitic oomycetes, including Phytophthora, which caused the Great Famine of Ireland, and Pythium, which causes seed rot and damping off.
The Cercozoa are a group of single-celled eukaryotes. They lack shared morphological characteristics at the microscopic level, being defined by molecular phylogenies of rRNA and actin or polyubiquitin. They are the natural predators of many species of microbacteria and Archea.
The Labyrinthulomycetes (ICBN) or Labyrinthulea (ICZN) are a class of protists that produce a network of filaments or tubes, which serve as tracks for the cells to glide along and absorb nutrients for them. The two main groups are the labyrinthulids and thraustochytrids. They are mostly marine, commonly found as parasites on algae and seagrasses or as decomposers on dead plant material. They also include some parasites of marine invertebrates.
Cercomonads are small flagellates, widespread in aqueous habitats and common in soils.
Bicosoecida (ICZN) or Bicosoecales/Bicoecea (ICBN) is an order of Bikosea, a small group of unicellular flagellates, included among the heterokonts. Informally known as bicosoecids, they are a small group of unicellular flagellates, included among the heterokonts. The cells are free-living, with no chloroplasts, and in some genera are encased in a lorica.
Ochrophyta is a group of mostly photosynthetic heterokonts. Their plastid is of red algal origin.
Opalinata is a superclass of non-phagotrophic heterokonts that unites the classes Opalinea and Blastocystea, and is the sister group to Opalomonadea.
Phaeothamniophyceae is a class of heterokonts. It contains two orders, Phaeothamniales and Aurearenales, and consists of species separated from Chrysophyceae.
Bigyra is a grouping of heterokont organisms. It includes Bicosoecida, Blastocystis and Labyrinthulida. It has also been described as containing Opalozoa, Bicoecia, and Sagenista.
Opalozoa is a subphylum of heterotrophic heterokonts of the phylum Bigyra, and is the sister group to Sagenista.
Dictyochophyceae sensu lato is a photosynthetic lineage of heterokont algae.
The Apusomonadida are a group of protozoan zooflagellates that glide on surfaces, and mostly consume prokaryotes. They are of particular evolutionary interest because they appear to be the sister group to the Opisthokonts, the clade that includes both animals and fungi. Together with the Breviatea, these form the Obazoa clade.
Aphelida is a phylum of Fungi that appear to be sister to true fungi.
Placidozoa is a recently defined non-photosynthetic lineage of Heterokonts.
Bigyromonadea is a recently described non-photosynthetic lineage of Heterokonts that at present contains only one species.
Pirsoniales is a non photosynthetic lineage of Heterokonts.
Chrysomerophyceae is a monotypic class of photosynthetic heterokont eukaryotes.
Anoecida is an order of bicosoecids, a small group of unicellular flagellates, included among the heterokonts.
Neocercomonas is a protist genus of the order Cercomonadida. It consists of single-celled bacteriophagous organisms that usually live on or nearby terrestrial plants, both above and belowground. Species are biflagellate and may grow up to 60 micrometers long, with a trailing tail-like mass of protoplasm at their posterior end and a pair of roots connecting their posterior flagellum to the cytoskeleton.
References
- ↑ Phylogeny and megasystematics of phagotrophic heterokonts (kingdom Chromista) T Cavalier-Smith, EEY Chao - Journal of molecular evolution, 2006
