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Palmophyllophyceae
The Palmophyllophyceae are a proposed basal Chlorophyte clade consisting of the Palmophyllales and Prasinococcales Prasinococcaceae is a family of 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 (Embryophyte .... References {{Taxonbar, from=Q26962824 Green algae classes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyta
Chlorophyta or Prasinophyta is a taxon of green algae informally called chlorophytes. The name is used in two very different senses, so care is needed to determine the use by a particular author. In older classification systems, it refers to a highly paraphyletic group of ''all'' the green algae within the green plants (Viridiplantae) and thus includes about 7,000 species of mostly aquatic photosynthetic eukaryotic organisms. In newer classifications, it refers to the sister clade of the streptophytes/ charophytes. The clade Streptophyta consists of the Charophyta in which the Embryophyta (land plants) emerged. In this latter sense the Chlorophyta includes only about 4,300 species. About 90% of all known species live in freshwater. Like the land plants (embryophytes: bryophytes and tracheophytes), green algae (chlorophytes and charophytes besides embryophytes) contain chlorophyll a and chlorophyll b and store food as starch in their plastids. With the exception of Palmop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmophyllophyceae
The Palmophyllophyceae are a proposed basal Chlorophyte clade consisting of the Palmophyllales and Prasinococcales Prasinococcaceae is a family of 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 (Embryophyte .... References {{Taxonbar, from=Q26962824 Green algae classes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prasinophyceae
The prasinophytes are a group of unicellular green algae. Prasinophytes mainly include marine planktonic species, as well as some freshwater representatives.Sym, S. D. and Pienaar, R. N. 1993. The class Prasinophyceae. In Round, F. E. and Chapman, D. J. (eds) ''Progress in Phycological Research'', Vol. 9. Biopress Ltd., Bristol, pp. 281-376. The prasinophytes are morphologically diverse, including flagellates with one to eight flagella and non-motile (coccoid) unicells. The cells of many species are covered with organic body scales; others are naked. Well studied genera include ''Ostreococcus'', considered to be the smallest (ca. 0.95 μm) free-living eukaryote, and ''Micromonas'', both of which are found in marine waters worldwide. Prasinophytes have simple cellular structures, containing a single chloroplast and a single mitochondrion. The genomes are relatively small compared to other eukaryotes (about 12 Mbp for ''Ostreococcus'' and 21 Mbp for ''Micromonas''). At least one spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophytina
The Chlorophytina are a proposed basal Tetraphytina clade. It is currently seen as sister of the Pedinomonadaceae. It contains the more well-known green alga and is characterized by the presence of phycoplast image:Phycoplast.png, Schematic representation of types of cytokinesis in the green algae: 1) Phycoplast formation with cleavage furrow (e.g. ''Chlamydomonas''); 2) Cleavage furrow and persistent telophase spindle (e.g. ''Klebsormidium''); 3) Phycop ...s. Below is a consensus reconstruction of green algal relationships, mainly based on molecular data et al. References {{Taxonbar, from=Q21381627 Chlorophyta Plant unranked clades ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phragmoplastophyta
The Phragmoplastophyta (Lecointre & Guyader 2006) are a proposed sister clade of the Klebsormidiaceae in the Streptophyte/Charophyte clade. The Phragmoplastophyta consist of the Charophycaea and another unnamed clade which contains the Coleochaetophyceae, Zygnematophyceae, Mesotaeniaceae, and Embryophytes (land plants). It is an important step in the emergence of land plants within the green algae. It is equivalent to the ZCC clade/grade, cladistically granting the Embryophyta. The mitosis of Phragmoplastophyta takes place via a phragmoplast. Another synapomorphy In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to hav ... of this clade is the synthesis of cellulose microfibrils by a complex of octameric cellulose synthetases. This complex crosses the plasma membrane and polymerizes mole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prasinococcales
Prasinococcaceae is a family of 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 ... in the order Prasinococcales. References Green algae families Palmophyllophyceae {{Green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charophyceae
Charophyceae is a class of charophyte green algae. AlgaeBase places it in division Charophyta. Extant (living) species are placed in a single order Charales, commonly known as "stoneworts" and "brittleworts". Fossil members of the class may be placed in separate orders, e.g. Sycidiales and Trochiliscales. Charophyceae is basal in the Phragmoplastophyta clade which contains the embryophytes (land plants).Hoek, C. van den, Mann, D. G. & Jahns, H. M. 1995''Algae: An Introduction to Phycology'' Cambridge University Press, Cambridge. McCourt, R. M., Chapman, R. L., Buchheim, M. & Mishler, B. D“Green Plants” Accessed 13 December 2007 In 2018, the first nuclear genome sequence from a species belonging to the Charophyceae was published: that of ''Chara braunii''. Description The thallus is erect with regular nodes and internodes. At each node there is a whorl of branches. The whole plant is calcified and ''Equisetum''-like. The internodes of the main axis consist of a single elong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmophyllales
The Palmophyllales are a deep-branching order of thalloid green alga, possibly forming a sister group to the Chlorophyta. They survive today in deep waters, where predation pressure is reduced. The group contains the genera '' Palmophyllum'', '' Verdigellas'' and '' Palmoclathrus''. The morphology of Palmophyllales is unusual in that they are composed of cells in a gelatinous matrix, so they are multicellular A multicellular organism is an organism that consists of more than one cell, in contrast to unicellular organism. All species of animals, land plants and most fungi are multicellular, as are many algae, whereas a few organisms are partially un ..., but not in a conventional way. Genera * '' Palmoclathrus'' Womersley 1971 * '' Palmophyllum'' Kützing 1845 non Conwentz 1886 * '' Verdigellas'' Ballantine & Norris 1994 References Green algae orders Palmophyllophyceae {{Algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trebouxiophyceae
The Trebouxiophyceae are a class of green algae, in the division Chlorophyta. Their circumscription within the green algae is not well established due to the need for more genetic studies at higher levels within the group. Genera without intervening taxonomy include: * '' Choricystis'' * '' Crucigenia'' * '' Koliellopsis'' * ''Leptosira'' * '' Rhopalosolen'' * '' Viridiella'' * ''Prototheca'' See also *List of Trebouxiophyceae genera This is a list of genera in the green algae class Trebouxiophyceae, sub-divided by order and family. Some genera have uncertain taxonomic placement and are listed as ''incertae sedis''. Ranks without accepted subordinate taxa have been omitted. ... References Green algae classes it is also the very well-known album by WUDU SJON {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorokybus
''Chlorokybus'' is a multicellular (sarcinoid) genus of basal green algae or charophyte, a soil alga Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular mi .... It has been classified as the sole member of the family Chlorokybaceae, which is the sole member of the order Chlorokybales, in turn the sole member of the class Chlorokybophyceae. Taxonomy ''Chlorokybus atmophyticus'' was once thought to be the only species in the genus. In 2021, a study showed that there were at least four other species, morphologically indistinguishable, but with deep genomic differences, suggesting divergences possibly about 76 million years ago. ''Chlorokybus'' has been found in Eurasia, Central and South America. ''Chlorokybus'' was placed in a new class, order and family. The new class Chlorokybophyceae was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleochaetales
Coleochaetaceae is a family of algae. It is the only family in the Coleochaetales, an order of parenchymous charophyte algae, that includes some of the closest multicellular relatives of land plants. They questionably include the fossil genus ''Parka A parka or anorak is a type of coat with a hood, often lined with fur or faux fur. This kind of garment is a staple of Inuit clothing, traditionally made from caribou or seal skin, for hunting and kayaking in the frigid Arctic. Some Inuit ano ...''. References Charophyta Green algae orders {{alga-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embryophyte
The Embryophyta (), or land plants, are the most familiar group of green plants that comprise vegetation on Earth. Embryophytes () have a common ancestor with green algae, having emerged within the Phragmoplastophyta clade of green algae as sister of the Zygnematophyceae. The Embryophyta consist of the bryophytes plus the polysporangiophytes. Living embryophytes therefore include hornworts, liverworts, mosses, lycophytes, ferns, gymnosperms and flowering plants. The land plants have diplobiontic life cycles and it is accepted now that they emerged from freshwater, multi-celled algae. The embryophytes are informally called land plants because they live primarily in terrestrial habitats (with exceptional members who evolved to live once again in aquatic habitats), while the related green algae are primarily aquatic. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
