Pleurastraceae
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Pleurastraceae
''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *''Pleurastrum insigne'' Chodat *''Pleurastrum photoheterotrophicum'' Metting *''Pleurastrum sarcinoideum'' Groover & H.C.Bold *''Pleurastrum terricola ''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *'' Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotr ...'' (Bristol) D.M.John References External links Scientific references Scientific databases AlgaTerra databaseIndex Nominum Genericorum Chlamydomonadales genera Chlamydomonadales {{Chlorophyceae-stub ...
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Pleurastrum Photoheterotrophicum
''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *''Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotrophicum'' Metting *''Pleurastrum sarcinoideum'' Groover & H.C.Bold *''Pleurastrum terricola ''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *'' Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotr ...'' (Bristol) D.M.John References External links Scientific references Scientific databases AlgaTerra databaseIndex Nominum Genericorum Chlamydomonadales genera Chlamydomonadales {{Chlorophyceae-stub ...
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Pleurastrum Insigne
''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *'' Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotrophicum'' Metting *''Pleurastrum sarcinoideum'' Groover & H.C.Bold *''Pleurastrum terricola ''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *'' Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotr ...'' (Bristol) D.M.John References External links Scientific references Scientific databases AlgaTerra databaseIndex Nominum Genericorum Chlamydomonadales genera Chlamydomonadales {{Chlorophyceae-stub ...
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Pleurastrum Sarcinoideum
''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *''Pleurastrum insigne'' Chodat *''Pleurastrum photoheterotrophicum'' Metting *''Pleurastrum sarcinoideum'' Groover & H.C.Bold *''Pleurastrum terricola'' (Bristol) D.M.John References External links Scientific references Scientific databases AlgaTerra databaseIndex Nominum Genericorum
Chlamydomonadales genera Chlamydomonadales {{Chlorophyceae-stub ...
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Pleurastrum Terricola
''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *'' Pleurastrum insigne'' Chodat *'' Pleurastrum photoheterotrophicum'' Metting *''Pleurastrum sarcinoideum ''Pleurastrum'' is a genus of green algae, specifically of the Chlorophyceae. , it was the only genus in the family Pleurastraceae. Species , AlgaeBase accepted the following species: *''Pleurastrum insigne'' Chodat *''Pleurastrum photoheterotrop ...'' Groover & H.C.Bold *'' Pleurastrum terricola'' (Bristol) D.M.John References External links Scientific references Scientific databases AlgaTerra databaseIndex Nominum Genericorum Chlamydomonadales genera Chlamydomonadales {{Chlorophyceae-stub ...
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Chlamydomonadales Genera
Chlamydomonadales, also known as Volvocales, are an order of flagellated or pseudociliated green algae, specifically of the Chlorophyceae.See the NCBIbr>webpage on Chlamydomonadales Data extracted from the Chlamydomonadales can form planar or spherical colonies. These vary from ''Gonium'' (four to 32 cells) up to ''Volvox'' (500 cells or more). Each cell has two flagella, and is similar in appearance to ''Chlamydomonas'', with the flagella throughout the colony moving in coordination. Both asexual and sexual reproduction occur. In the former, cells divide until they form new colonies, which are then released. In the smaller forms, typically all cells are involved, but larger forms have anterior vegetative and posterior reproductive cells. Sexual reproduction varies from isogamy (both genders produce flagellated gametes of equal size) to oogamy (one gender produces a much larger, nonmotile gamete). The classification of the Chlamydomonadales varies. Very often they are taken t ...
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Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ...
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Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ...
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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 other organi ...
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Chlorophyceae
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral or ribbon shaped in different species. Most of the members have one or more storage bodies called pyrenoids located in the chloroplast. Pyrenoids contain protein besides starch. Some green algae may store food in the form of oil droplets. They usually have a cell wall made up of an inner layer of cellulose and outer layer of pectose. General characteristics * the body may be unicellular, colonial, filamentous or multicellular. * They are usually green due to the presence of chlorophyll a, chlorophyll b and beta-carotene. * The chloroplast may be discoid, cup-shaped (e.g. ''Chlamydomonas''), spiral or ribbon shaped * Most chlorophytes have one or more storage bodies called pyrenoids (central prot ...
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AlgaeBase
AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael Guiry. Text was copied from this source, which is available under Attribution 4.0 International (CC BY 4.0)licence. (Sehere. By 2005, the database contained about 65,000 names. In 2013, AlgaeBase and the Flanders Marine Institute (VLIZ) signed an end-user license agreement regarding the Electronic Intellectual Property of AlgaeBase. This allows the World Register of Marine Species (WoRMS) to include taxonomic names of algae in WoRMS, thereby allowing WoRMS, as part of the Aphia database, to make its overview of all described marine species more complete. Synchronisation of the AlgaeBase data with Aphia and WoRMS was undertaken manually until March 2015, but this was very time-consuming, so an online application was developed to semi-automate the synchronisation, launching in 2015 in conju ...
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