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Amastigomonas Marisrubri
''Amastigomonas'' is a genus (biology), genus of protists belonging to a lineage of wikt:biciliate, biciliated zooflagellates known as Apusomonadida. It was first described in 1931 by Henri de Saedeleer. The current use of ''Amastigomonas'' is as a descriptive archetype, with no phylogenetic or taxonomic implications. The term "''Amastigomonas''-like" is used to refer to all apusomonads that lack the 'derived' characteristics of ''Apusomonas''. Description Organisms under the name "''Amastigomonas''" have an oval or oblong cell (biology), cell that can generate pseudopodia from the ventral surface. They lack a mastigophore, a projection of the cell body that contains both basal bodies at its end. Like all Apusomonadida, they have two flagella, and the anterior flagellum is surrounded by a membranous sleeve. Current use of the name Historically, the name ''Amastigomonas'' was used for any apusomonad species that had 'primitive' characteristics compared to the more 'derived' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podomonas
''Podomonas'' is a genus of apusomonads, a group of small zooflagellates that glide on their posterior cilium. The genus was identified in 2010 as an independent lineage from ''Apusomonas'' and ''Amastigomonas'', and consequently were described as their own separate taxon, containing many species previously assigned to ''Amastigomonas''. Cell structure ''Podomonas'' are ovoid or fusiform apusomonads, not divided into cell body and mastigophore. They lack a dense rod associated with the 8-microtubule band, just like '' Thecamonas'' but unlike ''Apusomonas'' and '' Manchomonas''. The ciliary sleeve is inconspicuous, around 1.5 μm long, seemingly triangular and merging into the ciliary base, pointing anteriorly or slightly to the left. The anterior cilium is strongly acronematic, unlike ''Manchomonas'', but has a non-acronematic base extending several microns beyond the sleeve tip. The posterior cilium is acronematic or tapering, with a non-acronematic portion that extends visibl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amorphea Genera
Amorphea is a taxonomic supergroup that includes the basal Amoebozoa and Obazoa. That latter contains the Opisthokonta, which includes the fungi, animals and the choanoflagellates. The taxonomic affinities of the members of this clade were originally described and proposed by Thomas Cavalier-Smith in 2002. The International Society of Protistologists, the recognised body for taxonomy of protozoa, recommended in 2012 that the term Unikont be changed to Amorphea because the name "Unikont" is based on a hypothesized synapomorphy that the ISOP authors and other scientists later rejected. It includes amoebozoa, opisthokonts, and apusomonads. Taxonomic revisions within this group Thomas Cavalier-Smith proposed two new phyla: Sulcozoa, which consists of the subphyla Apusozoa (Apusomonadida and Breviatea), and Varisulca, which includes the subphyla Diphyllatea, Discocelida, Mantamonadidae, Planomonadida and Rigifilida. Further work by Cavalier-Smith showed that Sulcozoa is paraph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Life
Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, aquatic plant, plants, algae, marine fungi, fungi, marine protists, protists, single-celled marine microorganisms, microorganisms and associated marine virus, viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of coastal wetlands, lagoons, estuary, estuaries and inland seas. , more than 242,000 marine species have been documented, and perhaps two million marine species are yet to be documented. An average of 2,332 new species per year are being described. Marine life is studied scientifically in both marine biology and in biological oceanography. By volume, oceans provide about 90% of the living space on Earth, and served as the cradle of life and vital biotic sanctuaries throughout Earth's geological history. The earliest known life forms evolved as anaerobe, anaerobic prokaryotes (archaea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelonemonas
''Chelonemonas'' () is a genus of heterotrophic protists. They are unicellular eukaryotes with two flagella, characterized by the presence of a honeycomb or turtle shell pattern on the dorsal surface of their cells that is visible under electron microscopy. They belong to the Apusomonadida, a clade of flagellates related to the opisthokonts, the group containing animals, fungi and their closest protist relatives. ''Chelonemonas'' was described in 2015, along with its type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ... '' C. masanensis'' and '' C. geobuk''. In 2022, a new species '' C. dolani'' was described. References {{taxonbar, from=Q25369555 Taxa described in 2015 Apusomonadida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multimonas
The apusomonads (family Apusomonadidae) 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. Characteristics Apusomonads are small gliding heterotrophic biflagellates (i.e. with two flagella) that possess a proboscis, formed partly or entirely by the anterior flagellum surrounded by a membranous sleeve. There is a pellicle under the dorsal cell membrane that extends into the proboscis sleeve and into a skirt that covers the sides of the cell. Apusomonads present two different cell plans: *Derived cell plan, represented by ''Apusomonas'', with a round cell body and a mastigophore, a projection of the cell containing both basal bodies at its end. *"''Amastigomonas''-like" cell plan, with an oval or oblong cell that generally f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
