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Actinastrum
''Actinastrum'' is a genus of mostly freshwater single-celled Eukaryotes, first described by Gustaf Lagerheim in 1882. Studies since 2002 have placed Actinastrum as either sister to or a subgrouping within Chlorella, a Charophyte green alga genus in the family Chlorellaceae Chlorellaceae are a family of green algae in the order Chlorellales.See the NCBIbr>webpage on Chlorellaceae Data extracted from the This genus includes some important emerging pathogens of humans and farm animals, such as ''Prototheca zopfii .... References External links Trebouxiophyceae genera Chlorellaceae {{Green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinastrum Aciculare
''Actinastrum'' is a genus of mostly freshwater single-celled Eukaryotes, first described by Gustaf Lagerheim in 1882. Studies since 2002 have placed Actinastrum as either sister to or a subgrouping within Chlorella, a Charophyte green alga genus in the family Chlorellaceae Chlorellaceae are a family (biology), family of green algae in the order Chlorellales.See the National Center for Biotechnology Information, NCBI]webpage on Chlorellaceae Data extracted from the This genus includes some important emerging path .... References External links Trebouxiophyceae genera Chlorellaceae {{Green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorellaceae
Chlorellaceae are a family of green algae in the order Chlorellales.See the NCBIbr>webpage on Chlorellaceae Data extracted from the This genus includes some important emerging pathogens of humans and farm animals, such as ''Prototheca zopfii ''Prototheca zopfii'' is aerobic, unicellular, yeast-like, achlorophyllic (without chlorophyll) microalga. Distribution ''Prototheca zopfii'' is opportunistic, environmental pathogen and ubiquitous in nature. This alga is mainly associated wi ...''. References External links Trebouxiophyceae families {{green algae-stub ... [...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] |
Gustaf Lagerheim
Nils Gustaf Lagerheim (1860–1926) was a Swedish botanist, mycologist, phycologist, and pteridologist. Today, he is best remembered as one of the chief architects of pollen analysis as a tool in botany, alongside his student Ernst Post. In 1895, botanists Giovanni Battista De Toni and Robert Hippolyte Chodat published '' Lagerheimia'', which is a genus of green algae in the family Oocystaceae Oocystaceae is a family of green algae, in the order Chlorellales. The type genus is '' Oocystis''. List of genera , AlgaeBase accepted the following genera: *'' Amphikrikos'' Korshikov – 6 species *'' Catenocystis'' F.Hindák – 2 specie ..., named in his honour. Then in 1940, Boedijn published ''Lagerheimiella'', another green algae genus. References {{DEFAULTSORT:Lagerheim, Nils Gustaf Swedish botanists Swedish mycologists Swedish phycologists 1860 births 1926 deaths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorella
''Chlorella'' is a genus of about thirteen species of single- celled green algae belonging to the division Chlorophyta. The cells are spherical in shape, about 2 to 10 μm in diameter, and are without flagella. Their chloroplasts contain the green photosynthetic pigments chlorophyll-a and -b. In ideal conditions cells of ''Chlorella'' multiply rapidly, requiring only carbon dioxide, water, sunlight, and a small amount of minerals to reproduce. The name ''Chlorella'' is taken from the Greek χλώρος, ''chlōros/ khlōros'', meaning green, and the Latin diminutive suffix ''ella'', meaning small. German biochemist and cell physiologist Otto Heinrich Warburg, awarded with the Nobel Prize in Physiology or Medicine in 1931 for his research on cell respiration, also studied photosynthesis in ''Chlorella''. In 1961, Melvin Calvin of the University of California received the Nobel Prize in Chemistry for his research on the pathways of carbon dioxide assimilation in plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charophyte
Charophyta () is a group of freshwater green algae, called charophytes (), sometimes treated as a division, yet also as a superdivision or an unranked clade. The terrestrial plants, the Embryophyta emerged within Charophyta, possibly from terrestrial unicellular charophytes, with the class Zygnematophyceae as a sister group. The clade Streptophyta may be formed by placing Embryophyta within the Charophyta. The Embryophyta may already be included in the Charophyta, in which case it is a synonym of the Streptophyta. The sister group of the charophytes are the Chlorophyta. In some charophyte groups, such as the Zygnematophyceae or conjugating green algae, flagella are absent and sexual reproduction does not involve free-swimming flagellate sperm. Flagellate sperm, however, are found in stoneworts ( Charales) and Coleochaetales, orders of parenchymatous charophytes that are the closest relatives of the land plants, where flagellate sperm are also present in all except the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
