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Aphanizomenon Sphaericum
''Aphanizomenon'' is a genus of cyanobacteria that inhabits freshwater lakes and can cause dense algal bloom, blooms. These cyanobacteria are unicellular organisms that form linear (non-branching) chains known as trichomes. Parallel trichomes can further unite into aggregates called rafts. Cyanobacteria such as ''Aphanizomenon'' are known for using photosynthesis to create energy and thus rely on sunlight as their energy source. ''Aphanizomenon'' bacteria also play a significant role in the Nitrogen cycle due to their ability to perform nitrogen fixation. Studies on the species ''Aphanizomenon flos-aquae'' have shown that it can regulate buoyancy through light-induced changes in turgor pressure. The genus is also capable of gliding motility, although the specific mechanism responsible for this ability remains unknown. Species Species and synonymy from AlgaeBase: * ''Aphanizomenon americanum'' S → ''Aphanizomenon flos-aquae'' * ''Aphanizomenon aphanizomenoides'' S → ''Sphae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphanizomenon Flos-aquae
''Aphanizomenon flos-aquae'' is a diverse group of cyanobacteria with both toxic and non-toxic strains found in brackish and freshwater environments globally, including the Baltic Sea and the Great Lakes. Cyanobacteria were the first organisms to achieve photosynthesis. Chlorophyll and phycocyanine—two pigments contained in cyanobacteria—allow the vegetative cells to absorb light and transform it into nutrients. Taxonomy and diversity There are two cyanobacterial species in Aphanizomenonaceae having the specific epithet ''flos-aquae'', both appearing in Bornet & Flahault 1886's work on what was then Nostocaceae. The two were morphologically different, being assigned to ''Aphanizomenon'' and ''Anabeana'' respectively. In 2005, Rajaniemi et al. (2005) reported that: * Three samples of ''Ap. flos-aquae'' had cylindrical akinetes and hyaline terminal cells, while the shape varies in five samples of ''An. flos-aquae''. * Four samples of ''Ap. flos-aquae'' end up in one phyloge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
