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Phalansterium Intestinum
''Phalansterium'' is a genus of single-celled flagellates, flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its pericentriolar material. Molecular evidence places it in the Amoebozoa. It has been suggested that it is similar to the ancestral eukaryote. Species Genus ''Phalansterium'' Cienkowsky 1870 * Species ''Phalansterium arcticum'' Shmakova, Karpov & Smirnov 2018 * Species ''Phalansterium consociatum'' (Fresenius 1858) Cienkowsky 1870 * Species ''Phalansterium digitatum'' Stein 1878 * Species ''Phalansterium filosum'' Cavalier-Smith & Chao 2011 * Species ''Phalansterium intestinum'' Cienkowsky 1870 * Species ''Phalansterium solitarium'' Sandon 1924 References Amoebozoa genera Conosa {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryota
The eukaryotes ( ) constitute the Domain (biology), domain of Eukaryota or Eukarya, organisms whose Cell (biology), cells have a membrane-bound cell nucleus, nucleus. All animals, plants, Fungus, fungi, seaweeds, and many unicellular organisms are eukaryotes. They constitute a major group of Outline of life forms, life forms alongside the two groups of prokaryotes: the Bacteria and the Archaea. Eukaryotes represent a small minority of the number of organisms, but given their generally much larger size, their collective global biomass is much larger than that of prokaryotes. The eukaryotes emerged within the archaeal Kingdom (biology), kingdom Asgard (Archaea), Promethearchaeati and its sole phylum Promethearchaeota. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among the Archaea. Eukaryotes first emerged during the Paleoproterozoic, likely as Flagellated cell, flagellated cells. The leading evolutiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pericentriolar Material
Pericentriolar material (PCM, sometimes also called pericent matrix) is a highly structured, dense mass of protein which makes up the part of the animal centrosome that surrounds the two centrioles. The PCM contains proteins responsible for microtubule nucleation and Microtubule anchoring, anchoring including γ-tubulin, pericentrin and ninein. Although the PCM appears amorphous by electron microscopy, super-resolution microscopy finds that it is highly organized. The PCM have 9-fold symmetry that mimics the symmetry of the centriole. Some PCM proteins are organized such that one end of the protein is found near the centriole and the other end is farther away from the centriole. The PCM size is dynamic during the cell cycle. After cell division, the PCM size is reduced in a process named centrosome cycle#Centrosome reduction, centrosome reduction.Atypical centrioles during sexual reproduction Tomer Avidor-Reiss*, Atul Khire, Emily L. Fishman and Kyoung H. Jo Curr Biol. 2015 Nov 16;25 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalansterium Solitarium
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its pericentriolar material. Molecular evidence places it in the Amoebozoa. It has been suggested that it is similar to the ancestral eukaryote. Species Genus ''Phalansterium'' Cienkowsky 1870 * Species '' Phalansterium arcticum'' Shmakova, Karpov & Smirnov 2018 * Species '' Phalansterium consociatum'' (Fresenius 1858) Cienkowsky 1870 * Species '' Phalansterium digitatum'' Stein 1878 * Species '' Phalansterium filosum'' Cavalier-Smith & Chao 2011 * Species ''Phalansterium intestinum ''Phalansterium'' is a genus of single-celled flagellates, flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a distinctive ultrastructure ...'' Cienkowsky 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalansterium Intestinum
''Phalansterium'' is a genus of single-celled flagellates, flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its pericentriolar material. Molecular evidence places it in the Amoebozoa. It has been suggested that it is similar to the ancestral eukaryote. Species Genus ''Phalansterium'' Cienkowsky 1870 * Species ''Phalansterium arcticum'' Shmakova, Karpov & Smirnov 2018 * Species ''Phalansterium consociatum'' (Fresenius 1858) Cienkowsky 1870 * Species ''Phalansterium digitatum'' Stein 1878 * Species ''Phalansterium filosum'' Cavalier-Smith & Chao 2011 * Species ''Phalansterium intestinum'' Cienkowsky 1870 * Species ''Phalansterium solitarium'' Sandon 1924 References Amoebozoa genera Conosa {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phalansterium Filosum
''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a distinctive ultrastructure of its pericentriolar material. Molecular evidence places it in the Amoebozoa. It has been suggested that it is similar to the ancestral eukaryote. Species Genus ''Phalansterium'' Cienkowsky 1870 * Species '' Phalansterium arcticum'' Shmakova, Karpov & Smirnov 2018 * Species '' Phalansterium consociatum'' (Fresenius 1858) Cienkowsky 1870 * Species '' Phalansterium digitatum'' Stein 1878 * Species '' Phalansterium filosum'' Cavalier-Smith & Chao 2011 * Species ''Phalansterium intestinum'' Cienkowsky 1870 * Species ''Phalansterium solitarium ''Phalansterium'' is a genus of single-celled flagellated organisms comprising several species, which form colonies. ''Phalansterium'' produces tetraspores. ''Phalansterium'' is hard to classify; it has a dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrastructure
Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a conventional transmission electron microscope (TEM) when viewing biological specimens such as cells, tissue, or organs. Ultrastructure can also be viewed with scanning electron microscopy and super-resolution microscopy, although TEM is a standard histology technique for viewing ultrastructure. Such cellular structures as organelles, which allow the cell to function properly within its specified environment, can be examined at the ultrastructural level. Ultrastructure, along with molecular phylogeny, is a reliable phylogenetic way of classifying organisms. Features of ultrastructure are used industrially to control material properties and promote biocompatibility. History In 1931, German engineers Max Knoll and Ernst Ruska invente ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoebozoa
Amoebozoa is a major Taxonomy (biology), taxonomic group containing about 2,400 described species of Amoeba, amoeboid protists, often possessing blunt, fingerlike, Pseudopod#Morphology, lobose pseudopods and tubular mitochondrial cristae. In traditional classification schemes, Amoebozoa is usually ranked as a phylum within either the kingdom (biology), kingdom Protista or the kingdom Protozoa. In the classification favored by the International Society of Protistologists, it is retained as an unranked "supergroup (biology), supergroup" within Eukaryota. Molecular genetics, Molecular genetic analysis supports Amoebozoa as a monophyletic clade. Modern studies of eukaryotic phylogenetic trees identify it as the sister group to Opisthokonta, another major clade which contains both fungi and animals as well as several other clades comprising some 300 species of unicellular eukaryotes. Amoebozoa and Opisthokonta are sometimes grouped together in a high-level taxon, named Amorphea. Amoeboz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AlgaeBase
AlgaeBase is a global species database of information on all groups of algae, both seaweed, marine and freshwater algae, freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael D. Guiry, Michael Guiry. Text was copied from this source, which is available under aAttribution 4.0 International (CC BY 4.0)licence. (Sehere. By 2005, the database contained about 65,000 names. In 2013, AlgaeBase and the Flanders Marine Institute (VLIZ) signed an end-user license agreement regarding the intellectual property, Electronic Intellectual Property of AlgaeBase. This allows the World Register of Marine Species (WoRMS) to include taxonomic names of algae in WoRMS, thereby allowing WoRMS, as part of the Aphia database, to make its overview of all described marine species more complete. Synchronisation of the AlgaeBase data with Aphia and WoRMS was undertaken manually until March 2015, but this was very time-consuming, so an online application was developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagellates
A flagellate is a cell or organism with one or more whip-like appendages called flagellum, flagella. The word ''flagellate'' also describes a particular construction (or level of organization) characteristic of many prokaryotes and eukaryotes and their means of motion. The term presently does not imply any specific relationship or classification of the organisms that possess flagella. However, several Morphological derivation, derivations of the term "flagellate" (such as "dinoflagellate" and "choanoflagellate") are more formally characterized. Form and behavior Flagella in eukaryotes are supported by microtubules in a characteristic arrangement, with nine fused pairs surrounding two central singlets. These arise from a basal body. In some flagellates, flagella direct food into a cytostome or mouth, where food is Ingestion, ingested. Flagella role in classifying eukaryotes. Among protoctists and microscopic animals, a flagellate is an organism with one or more flagella. So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
