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Ancyromonas
''Ancyromonas'' is a genus of basal Eukaryote consisting of heterotrophic flagellates. It includes the species ''Ancyromonas sigmoides'', first described by Saville Kent in 1880. The genus was rediscovered in modern times by Hänel in 1979. They are about 5 μm long and live in both marine and freshwater habitats with a global distribution. In 2008, Cavalier-Smith et. al proposed the reassignment of all known species of ''Ancyromonas'' into a new genus, ''Planomonas''. ''Planomonas'' has since been described as a junior synonym of ''Ancyromonas''. ''Ancyromonas'' does not belong to any of the eukaryotic supergroups, and they appear more basal than Malawimonas ''Malawimonas'' is a Loukozoa genus, possible sister of the Podiata. History of the discovery of Malawimonads In 1993, Charles J O’ Kelly studied the jakobid groups flagellates and implications for the early diversification of eukaryotes and ..., placing them in Loukouzoa, possibly relatives of podiates, and dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancyromonas Sigmoides
''Ancyromonas'' is a genus of basal Eukaryote consisting of heterotrophic flagellates. It includes the species ''Ancyromonas sigmoides'', first described by Saville Kent in 1880. The genus was rediscovered in modern times by Hänel in 1979. They are about 5 μm long and live in both marine and freshwater habitats with a global distribution. In 2008, Cavalier-Smith et. al proposed the reassignment of all known species of ''Ancyromonas'' into a new genus, ''Planomonas''. ''Planomonas'' has since been described as a junior synonym of ''Ancyromonas''. ''Ancyromonas'' does not belong to any of the eukaryotic supergroups, and they appear more basal than Malawimonas ''Malawimonas'' is a Loukozoa genus, possible sister of the Podiata. History of the discovery of Malawimonads In 1993, Charles J O’ Kelly studied the jakobid groups flagellates and implications for the early diversification of eukaryotes and ..., placing them in Loukouzoa, possibly relatives of podiates, and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Saville-Kent
William Saville-Kent (10 July 1845 – 11 October 1908) was an English marine biologist and author. Early life Born in the town of Sidmouth in Devon, South West England on 10 July 1845, William Saville-Kent was the son of Samuel Saville Kent (7 July 1800 – 5 February 1872) and Mary Ann Windus (b. 1808 – May 1852), who was Samuel's first wife. William was the youngest of ten children from his father's first marriage. Samuel was employed as a "Factory Commissioner" for the Home Office, and inspected factories to ensure that they were properly implementing the worker safety measures regulated in the Factory Acts of 1833. As the acts sought to alleviate the harm done to children that were caused by unregulated working conditions in the factories, Samuel's “duties required him to inspect factories that employed women and children.” Despite having “ambitions for promotion,” Samuel “suffered from the effects of local gossip and disapproval,” as a consequence of him be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryote
Eukaryotes () are organisms whose cells have a nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the three domains of life. Bacteria and Archaea (both prokaryotes) make up the other two domains. The eukaryotes are usually now regarded as having emerged in the Archaea or as a sister of the Asgard archaea. This implies that there are only two domains of life, Bacteria and Archaea, with eukaryotes incorporated among archaea. Eukaryotes represent a small minority of the number of organisms, but, due to their generally much larger size, their collective global biomass is estimated to be about equal to that of prokaryotes. Eukaryotes emerged approximately 2.3–1.8 billion years ago, during the Proterozoic eon, likely as flagellated phagotrophs. Their name comes from the Greek εὖ (''eu'', "well" or "good") and κάρυον (''karyon'', "nut" or "kernel"). Euka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterotroph
A heterotroph (; ) is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary, secondary and tertiary consumers, but not producers. Living organisms that are heterotrophic include all animals and fungi, some bacteria and protists, and many parasitic plants. The term heterotroph arose in microbiology in 1946 as part of a classification of microorganisms based on their type of nutrition. The term is now used in many fields, such as ecology in describing the food chain. Heterotrophs may be subdivided according to their energy source. If the heterotroph uses chemical energy, it is a chemoheterotroph (e.g., humans and mushrooms). If it uses light for energy, then it is a photoheterotroph (e.g., green non-sulfur bacteria). Heterotrophs represent one of the two mechanisms of nutrition (trophic levels), the other being autotrophs (''auto'' = self, ''troph'' = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagellate
A flagellate is a cell or organism with one or more whip-like appendages called 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, the term "flagellate" is included in other terms (such as "dinoflagellate" and "choanoflagellata") which 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 ingested. Flagella often support hairs, called mastigonemes, or contain rods. Their ultrastructure plays an important role in classifying eukaryotes. Among protoctists and microscopic anima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malawimonas
''Malawimonas'' is a Loukozoa genus, possible sister of the Podiata. History of the discovery of Malawimonads In 1993, Charles J O’ Kelly studied the jakobid groups flagellates and implications for the early diversification of eukaryotes and recognized that ''Jakoba, Reclimonas,'' and ''Histonia'' or often refer as “core jakobids” were morphologically somewhat similar. Interestingly, they included an unnamed and undescribed free-swimming, flagellate, and also groove- bearing cell. During the early study, these cells were thought to be a member from ''Jakoba'' due to the external morphology features that resembles ''Jakoba libera'' in terms of lack of cell covering, sessile trophic stages, swimming in a similar manner and sharing the tendency for the anterior flagellum to form a “crook. However, later discovery found that this species seems to not fit and can not be assigned to the genus ''Jakoba'', nor to any other genus of Jakobids, because of their discoidal mitochond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loukozoa
Loukozoa (+ Ancyromonads) (From Greek ''loukos'': groove) is a proposed taxon used in some classifications of eukaryotes, consisting of the Metamonada and Malawimonadea. Ancyromonads are closely related to this group, as sister of the entire group, or as sister of the Metamonada. Amorphea may have emerged in this grouping, specifically as sister of the Malawimonads. Originally, Loukozoa included Anaeromonadea and Jakobea. In 2013, it consisted of three subphyla: Eolouka (Tsukubea and Jakobea), Metamonada and Neolouka (''Malawimonas''). Cavalier-Smith has recently removed Eolouka from Loukozoa, placing it instead in Discoba Excavata is a major supergroup of unicellular organisms belonging to the domain Eukaryota. It was first suggested by Simpson and Patterson in 1999 and introduced by Thomas Cavalier-Smith in 2002 as a formal taxon. It contains a variety of fre .... With the root of the Eukaryota likely close to or in Loukozoa or Discoba, these groupings are studied to giv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotokaryotes
The Scotokaryotes (Cavalier-Smith) is a proposed basal Neokaryote clade as sister of the Diaphoretickes. Basal Scotokaryote groupings are the Metamonads, the Malawimonas and the Podiata. In this phylogeny the Discoba are sometimes seen as paraphyletic and basal Eukaryotes. An alternative to the Unikont–Bikont division was suggested by Derelle ''et al.'' in 2015, where they proposed the acronyms Opimoda–Diphoda respectively, as substitutes to the older terms. The name Opimoda is formed from the letters (shown in capitals) of OPIsthokonta and aMOebozoa Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. In traditional and currently no longer supported classi .... In this phylogeny Discoba belongs to the Diphoda clade. Taxonomy A proposed cladogram is See also * Diphoda References {{Taxonbar, from=Q21399998 Eukaryote unranke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
