Mesotaeniaceae

	Mesotaeniaceae The Mesotaeniaceae are a small family of unicellular green algae known as the "saccoderm desmids". The Mesotaeniaceae appear to be sister or ancestral to the Zygnemataceae. The desmids are a deep branching group of Zygnemataceae. ''Spirotaenia'' was found to be a Basal (phylogenetics), basal green alga. Genera The Mesotaeniaceae includes the following genera: * ''Ancylonema'' Berggren, 1872 * ''Cylindrocystis'' Meneghini ex De Bary, 1858 * ''Geniculus'' Prescott, 1967 * ''Mesotaenium'' Nägeli, 1849 * ''Netrium'' (Nägeli) Itzigsohn & Rothe, 1856 * ''Nucleotaenium'' Gontcharov & Melkonian, 2010 * ''Planotaenium'' (Ohtani) Petlovany & Palamar-Mordvintseva, 2009 * ''Roya (alga), Roya'' West & G.S.West, 1896 * ''Tortitaenia'' A.J.Brook, 1998 Synonyms: * ''Endospira'' Brébisson, nom. inval., is a synonym of Spirotaenia * ''Entospira'' Kuntze, 1898 is a synonym of ''Spirotaenia'' * ''Polytaenia'' A.J.Brook, 1997, nom. illeg., is a synonym of ''Tortitaenia'' References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Spirotaenia ''Spirotaenia'' is a genus of basal unicellular green algae that may be sister to the Chlorokybophyceae. It was previously considered to be part of the Zygnemataceae. It is sexually Isogamy#Conjugation, conjugating, a mode of reproduction that was previously only known in the Zygnemataceae/Mesotaeniaceae, the sister groups to the land plants. This is surprising, as ''Spirotaenia'' is much more basal. The conjugating process is substantially aberrant. ''Spirotaenia'' may actually be more than one distinct lineage which may not be closely related. Phylogeny References Charophyta {{green alga-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Zygnematales The Zygnematales ( (''zygós'') and νῆμα (''nḗma'') ( nom.), νήματος (''nḗmatos'') ( gen.)), also called the Conjugatales, are an order of green algae, comprising several thousand different species in two families. The larger family Zygnemataceae, with well-known genera such as ''Zygnema'' and ''Spirogyra'', includes members that grow as unbranched filaments, which grow longer through normal cell division. This group includes the desmids. Most members of both families live in freshwater, and form an important component of the algal scum that grows on or near plants and rocks. Systematically they fall within the division Charophyta/ Streptophyta, in which the land plants ( Embryophyta) emerged. Sexual reproduction in Zygnematales takes place through a process called ''conjugation''. Here filaments of opposite gender line up, and tubes form between corresponding cells. The male cells then become amoeboid and crawl across, or sometimes both cells crawl into the tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Cylindrocystis Brebissonii ''Cylindrocystis'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and America. Species: ''Cylindrocystis angulatum'' ''Cylindrocystis cylindrospora'' ''Cylindrocystis diplospora'' ''Cylindrocystis minutissima'' ''Cylindrocystis obesa'' ''Cylindrocystis splendida ''Cylindrocystis'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and America. Species: ''Cylindrocystis angulatum'' ''Cylindrocystis cylindrospora'' ''Cylindrocystis diplospora'' ...'' References {{Authority control Zygnematales Charophyta genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Ancylonema ''Ancylonema'' is a genus of algae belonging to the family Mesotaeniaceae The Mesotaeniaceae are a small family of unicellular green algae known as the "saccoderm desmids". The Mesotaeniaceae appear to be sister or ancestral to the Zygnemataceae. The desmids are a deep branching group of Zygnemataceae. ''Spirotaenia'' .... References Snow algae Zygnematales Charophyta genera {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Cylindrocystis ''Cylindrocystis'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and America. Species: ''Cylindrocystis angulatum'' ''Cylindrocystis cylindrospora'' ''Cylindrocystis diplospora'' ''Cylindrocystis minutissima'' ''Cylindrocystis obesa'' ''Cylindrocystis splendida ''Cylindrocystis'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and America. Species: ''Cylindrocystis angulatum'' ''Cylindrocystis cylindrospora'' ''Cylindrocystis diplospora'' ...'' References {{Authority control Zygnematales Charophyta genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Mesotaenium ''Mesotaenium'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and Northern America. Species: '' Mesotaenium aplanosporum'' '' Mesotaenium berggrenii'' '' Mesotaenium caldariorum'' '' Mesotaenium chlamydosporum'' '' Mesotaenium degreyi'' '' Mesotaenium dodekahedron'' ''Mesotaenium endlicherianum'' '' Mesotaenium fusisporum'' '' Mesotaenium hansgirgii'' '' Mesotaenium heimii'' '' Mesotaenium kramstae'' ''Mesotaenium macrococcum'' ''Mesotaenium minimum'' ''Mesotaenium mirificum'' ''Mesotaenium neglectum'' ''Mesotaenium nivale'' ''Mesotaenium obscurum'' ''Mesotaenium purpureum'' ''Mesotaenium pyrenoidosum'' ''Mesotaenium truncatum'' ''Mesotaenium turicense'' ''Mesotaenium violascens ''Mesotaenium'' is a genus of algae belonging to the family Mesotaeniaceae. The species of this genus are found in Europe and Northern America. Species: '' Mesotaenium aplanosporum'' '' Mesotaen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Netrium ''Netrium'' is a genus of algae belonging to the family Mesotaeniaceae The Mesotaeniaceae are a small family of unicellular green algae known as the "saccoderm desmids". The Mesotaeniaceae appear to be sister or ancestral to the Zygnemataceae. The desmids are a deep branching group of Zygnemataceae. ''Spirotaenia'' .... The species of this genus are found in Europe, America and Australia. Species: '' Netrium digitus'' '' Netrium interruptum'' '' Netrium lamellosum'' '' Netrium naegelii'' '' Netrium obesus'' '' Netrium oblongum'' References {{Taxonbar, from=Q1231838 Zygnematales Charophyta genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Green Alga The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ( Embryophytes) have emerged deep within the charophytes as a sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to 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 (spherical), and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae, many of which live most of their lives as single cells, while other species form coenobia (colonies), long filaments, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Zygnemataceae The Zygnemataceae are a family of Algae#Morphology, filamentous or unicellular, uniseriate (unbranched) green algae. The filaments are septum, septated and reproduction is by Sexual conjugation, conjugation; ''Spirogyra'' is commonly used in schools to demonstrate this kind of reproduction. The family is notable for its diversely shaped chloroplasts, such as Star, stellate in ''Zygnema'', Helix, helical in ''Spirogyra'', and flat in ''Mougeotia''. The Zygnemataceae are cosmopolitan, but though all generally occur in the same types of habitats, ''Mougeotia'', ''Spirogyra'', and ''Zygnema'' are by far the most common; in one study across North America, 95% of the Zygnemataceae collected were in these three genera. Classification and identification is primarily by the morphology of the conjugation, which is somewhat rare to find in natural populations of permanent water bodies; when in the vegetative state, the rarer genera resemble the three most common, and are often mistaken for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]