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Climacosphenia Catena
''Climacosphenia'' is a genus of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacosphenia Moniligera
''Climacosphenia'' is a genus of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatom Genera
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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennate
Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in patterns of erosion or stream beds. The term derives from the Latin word ''pinna'' meaning "feather", " wing", or " fin". A similar concept is "pectination," which is a comb-like arrangement of parts (arising from one side of an axis only). Pinnation is commonly referred to in contrast to "palmation," in which the parts or structures radiate out from a common point. The terms "pinnation" and "pennation" are cognate, and although they are sometimes used distinctly, there is no consistent difference in the meaning or usage of the two words.Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 Plants Botanically, pinnation is an arrangement of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simonsen Mereschkowsky
Simonsen is a surname. Notable people with the surname include: * Allan Simonsen (born 1952), Danish football player * Allan Simonsen (racing driver) (1978–2013), Danish racing driver * Bengt Simonsen (racewalker) (born 1958), Swedish racewalker *Fanny Simonsen (c. 1835–1896), French-born soprano in Australia * Iluska Pereira da Cunha Simonsen (1941–2017), Brazilian chess master *Jan Simonsen (born 1953), Norwegian politician * John Ditlev-Simonsen (1898–1967), Norwegian sailor *Karen Simonsen, Canadian judge * Lasse Simonsen (born 1953), Norwegian law professor *Mário Henrique Simonsen (1935–1997), Brazilian economist, professor, banker, and finance minister *Martin Simonsen (c. 1829–1899), Danish-born violinist and impresario in Australia * Mikael Simonsen (1882–1950), Danish rower *Olaf Ditlev-Simonsen (1897–1978), Norwegian sailor *Per Ditlev-Simonsen (born June 12, 1932), Norwegian politician * Peter Simonsen (born 1959), New Zealand football player *Redmond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacosphenia Truncata
''Climacosphenia'' is a genus of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacosphenia Siciliana
''Climacosphenia'' is a genus of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacosphenia Elongata
''Climacosphenia'' is a genus of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konstantin Mereschkowski
Konstantin Sergeevich Mereschkowski ( rus, Константи́н Серге́евич Мережко́вский, p=mʲɪrʲɪˈʂkofskʲɪj; – 9 January 1921) was a prominent Russian biologist and botanist, active mainly around Kazan, Tatarstan, whose research on lichens led him to propose the theory of symbiogenesis – that larger, more complex cells (of eukaryotes) evolved from the symbiotic relationship between less complex ones. He presented this theory in 1910, in his work, ''The Theory of Two Plasms as the Basis of Symbiogenesis, a New Study of the Origins of Organisms'', although the fundamentals of the idea had already appeared in his earlier 1905 work, ''The nature and origins of chromatophores in the plant kingdom''. Biography Early life Konstantin was born in Saint Petersburg, one of six sons and three daughters in the Mereschkowski family. His father Sergey Ivanovich served as a senior official in several Russian local governors' cabinets (including tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacosphenia Elegans
''Climacosphenia elegans'' is a species of marine pennate diatoms in the order Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a .... References External links * ''Climacosphenia elegans'' at the World Register of marine Species (WoRMS)''Climacosphenia elegans'' at algaebase Species described in 1901 Fragilariophyceae {{Diatom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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