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Tetradesmus
''Tetradesmus'' is a genus of green algae in the family Scenedesmaceae. History The genus ''Tetradesmus'' was described by Gilbert Morgan Smith for ''Tetradesmus wisconsinensis ''Tetradesmus'' is a genus of green algae in the family Scenedesmaceae. History The genus ''Tetradesmus'' was described by Gilbert Morgan Smith for '' Tetradesmus wisconsinensis''. It was merged into the similar genus ''Scenedesmus ''Scenedes ...''. It was merged into the similar genus '' Scenedesmus'' until the 2000s, when ''Tetradesmus'' was raised to genus rank. References External links Sphaeropleales genera Sphaeropleales {{Chlorophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetradesmus Wisconsinensis
''Tetradesmus'' is a genus of green algae in the family Scenedesmaceae. History The genus ''Tetradesmus'' was described by Gilbert Morgan Smith for '' Tetradesmus wisconsinensis''. It was merged into the similar genus ''Scenedesmus ''Scenedesmus'' is a genus of green algae, in the class Chlorophyceae. They are colonial and non-motile. Taxonomy Currently, there are 74 taxonomically accepted species of ''Scenedesmus''. Additionally, several subgenera have been identified, ...'' until the 2000s, when ''Tetradesmus'' was raised to genus rank. References External links Sphaeropleales genera Sphaeropleales {{Chlorophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scenedesmaceae
Scenedesmaceae is a family of green algae in the order Sphaeropleales. ''Scenedesmus'' algae are commonly found in freshwater plankton. The former family Coelastraceae is considered a synonym of Scenedesmaceae. Genera Genera in this family include: * '' Acutodesmus'' * '' Asterarcys'' * '' Astrocladium'' * '' Chodatodesmus'' * '' Closteriococcus'' * ''Coelastrella'' * '' Coelastropsis'' * '' Coelastrum'' * '' Comasiella'' * '' Crucigeniopsis'' * ''Danubia'' * ''Desmodesmus'' * ''Dimorphococcus'' * ''Enallax'' * '' Flechtneria'' * ''Gilbertsmithia'' * '' Hariotina'' * '' Hofmania'' * '' Hylodesmus'' * '' Komarekia'' * '' Lauterborniella'' * '' Neodesmus'' * '' Pectinodesmus'' * '' Pseudodidymocystis'' * '' Pseudotetrastrum'' * '' Scenedesmus'' * '' Schistochilium'' * '' Schmidledesmus'' * '' Schroederiella'' * '' Scotiellopsis'' * '' Soropediastrum'' * '' Staurogenia'' * '' Steinedesmus'' * ''Tetradesmus'' * '' Tetrallantos'' * '' Tetranephris'' * '' Tetrastrum'' * '' Trunca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert Morgan Smith
Gilbert Morgan Smith (6 January 1885, Beloit, Wisconsin – 11 July 1959) was a botanist and phycologist, who worked primarily on the algae. He was best known for his books, particularly the ''Freshwater Algae of the United States'', the ''Marine Algae of the Monterey Peninsula'' and the two volumes of ''Cryptogamic Botany''. Career Smith was born on 6 January 1885 to Elizabeth Mayher Smith and Erastus G. Smith in Beloit, Wisconsin, where his father was Professor of Chemistry at the College. His parents were both born in Massachusetts and educated there, at Mt. Holyoke College and Amherst College respectively. Smith attended Beloit College, where he concentrated on botany and chemistry, and graduated in 1907. He taught science at the high school in Stoughton, Wisconsin for the next two years, before beginning graduate studies at the University of Wisconsin in 1909, where he started work on the algal genus '' Oedogonium''. He interrupted his studies for a one-year teaching appo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Algae
The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ( Embryophytes) have emerged deep in the Charophyte alga as sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to properly include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae. Many species live most of their lives as single cells, while other species form coenobia (colonies), long filaments, or highly differentiated macroscopic seaweeds. A few oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper. The NCBI houses a series of databases relevant to biotechnology and biomedicine and is an important resource for bioinformatics tools and services. Major databases include GenBank for DNA sequences and PubMed, a bibliographic database for biomedical literature. Other databases include the NCBI Epigenomics database. All these databases are available online through the Entrez search engine. NCBI was directed by David Lipman, one of the original authors of the BLAST sequence alignment program and a widely respected figure in bioinformatics. GenBank NCBI had responsibility for making available the GenBan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scenedesmus
''Scenedesmus'' is a genus of green algae, in the class Chlorophyceae. They are colonial and non-motile. Taxonomy Currently, there are 74 taxonomically accepted species of ''Scenedesmus''. Additionally, several subgenera have been identified, but vary according to the source. Hegewald denotes ''Acutodesmus'', ''Desmodesmus'', and ''Scenedesmus'' as the three major categories. ''Acutodesmus'' is characterized as having acute cell poles, while ''Desmodesmus'' and ''Scenedesmus'' have obtuse/truncated cell poles (differentiated by the presence or absence of spines respectively). Fossil records date ''Scenedesmus'' from 70 to 100 million years ago with ''Desmodesmus'' suspected to be the youngest of these three groups. Basic biology ''Scenedesmus'' is one of the most common freshwater algae genera; however, the extremely diverse morphologies found within species make identification difficult.Lürling, Miquel. The Smell of Water: Grazer-Induced Colony Formation in Scenedesmus. Thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeropleales Genera
Sphaeropleales is an order of green algae that used to be called Chlorococcales. The order includes some of the most common freshwater planktonic algae such as '' Scenedesmus'' and '' Pediastrum''. The Spaeropleales includes vegetatively non-motile unicellular or colonial taxa that have biflagellate zoospores with flagella that are directly opposed in direction (the DO arrangement): ''Sphaeroplea'', '' Atractomorpha'', ''Neochloris'', '' Hydrodictyon'', and '' Pediastrum''. All of these taxa have basal body core connections. With an increase in the number of taxa for which sequence data are available, there is evidence of an expanded DO clade that includes additional zoosporic (''Bracteacoccus'', '' Schroederia'') and some strictly autosporic genera such as '' Ankistrodesmus'', '' Scenedesmus'', ''Selenastrum'', and ''Monoraphidium''. The filamentous ''Microspora ''Microspora'' is a genus of green algae in the family Microsporaceae.See the NCBIbr>webpage on Microspora Data ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
