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Achnanthidium Affine
''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae. The genus was described in 1844 by Friedrich Traugott Kützing. The genus has cosmopolitan distribution. Species: (see a more complete list) * '' Achnanthidium affine'' (Grunow) Czarnecki, 1994 * '' Achnanthidium agardhii'' (Kützing) Mereschkowsky * ''Achnanthidium alpestre ''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae Achnanthidiaceae is a family of diatoms in the order Achnanthales Achnanthales is an order of diatoms. References External links * * * Diatom orde ...'' (R. Lowe & J.P. Kociolek) R. Lowe & J.P. Kociolek * '' Achnanthidium minutissimum'' (Kützing) Czarnecki from Phycology Section of the Academy of N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatoms
A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Depression, which was once made up of a system of fres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achnanthidiaceae
Achnanthidiaceae is a family of diatoms in the order Achnanthales Achnanthales is an order of diatoms. References External links * * * Diatom orders {{diatom-stub .... It contains 461 species within 22 genera. Genera The following genera are accepted within Achnanthidiaceae according to AlgaeBase. * '' Achnanthidium'' * '' Astartiella'' * '' Crenotia'' * '' Eucocconeis'' * '' Gliwiczia'' * '' Gogorevia'' * '' Gololobovia'' * '' Gomphothidium'' * '' Haloroundia'' * '' Karayevia'' * '' Kolbesia'' * '' Lemnicola'' * '' Madinithidium'' * '' Majewskaea'' * '' Planothidium'' * '' Platebaikalia'' * '' Platessa'' * '' Psammothidium'' * '' Pseudachnanthidium'' * '' Rossithidium'' * '' Skabitschewskia'' * '' Trifonovia'' References Achnanthales {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Traugott Kützing
Friedrich Traugott Kützing (8 December 1807 in Ritteburg – 9 September 1893) was a German pharmacist, botanist and phycologist. Despite his limited background in regard to higher education, Kützing made significant scientific contributions. In 1833, he demonstrated differences between diatoms and desmids, thus separating the two groups into families of their own. Also, independent of Charles Cagniard-Latour (1777–1859) and Theodor Schwann (1810–1882), he was among the first to provide comprehensive answers in regard to yeast and the role it played in fermentation. In 1849, he published ''Species Algarum'', a massive work that provided descriptions for 6000 species of algae. He is the taxonomic authority of the genera ''Syringodium'' (family Cymodoceaceae) and ''Phlebothamnion'' (family Ceramiaceae). Early life As a young man, he worked in several pharmacies in Germany, also serving as assistant for a few semesters at the chemical-pharmaceutical institute of Franz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achnanthidium Affine
''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae. The genus was described in 1844 by Friedrich Traugott Kützing. The genus has cosmopolitan distribution. Species: (see a more complete list) * '' Achnanthidium affine'' (Grunow) Czarnecki, 1994 * '' Achnanthidium agardhii'' (Kützing) Mereschkowsky * ''Achnanthidium alpestre ''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae Achnanthidiaceae is a family of diatoms in the order Achnanthales Achnanthales is an order of diatoms. References External links * * * Diatom orde ...'' (R. Lowe & J.P. Kociolek) R. Lowe & J.P. Kociolek * '' Achnanthidium minutissimum'' (Kützing) Czarnecki from Phycology Section of the Academy of N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achnanthidium Alpestre
''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae Achnanthidiaceae is a family of diatoms in the order Achnanthales Achnanthales is an order of diatoms. References External links * * * Diatom orders {{diatom-stub .... It contains 461 species within 22 genera. Genera The fol .... The genus was described in 1844 by Friedrich Traugott Kützing. The genus has cosmopolitan distribution. Species: (see a more complete list) * '' Achnanthidium affine'' (Grunow) Czarnecki, 1994 * '' Achnanthidium agardhii'' (Kützing) Mereschkowsky * '' Achnanthidium alpestre'' (R. Lowe & J.P. Kociolek) R. Lowe & J.P. Kociolek * '' Achnanthidium minutissimum'' (Kützing) Czarnecki from Phycology Section of the Academy of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achnanthidium Minutissimum
''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae. The genus was described in 1844 by Friedrich Traugott Kützing. The genus has cosmopolitan distribution. Species: (see a more complete list) * ''Achnanthidium affine'' (Grunow) Czarnecki, 1994 * ''Achnanthidium agardhii'' (Kützing) Mereschkowsky * ''Achnanthidium alpestre ''Achnanthidium'' is a genus of diatoms belonging to the family Achnanthidiaceae Achnanthidiaceae is a family of diatoms in the order Achnanthales Achnanthales is an order of diatoms. References External links * * * Diatom orde ...'' (R. Lowe & J.P. Kociolek) R. Lowe & J.P. Kociolek * '' Achnanthidium minutissimum'' (Kützing) Czarnecki from Phycology Section of the Academy of Nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achnanthales
Achnanthales is an order of diatom A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising sev ...s. References External links * * * Diatom orders {{diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
