Eutreptia Pyrenoidifera

	Eutreptia Pyrenoidifera ''Eutreptia'' is a genus of Euglenozoa belonging to the family Eutreptiaceae (Eutreptiidae). The genus was first described by Maximilian Perty in 1852. It has a cosmopolitan distribution, and is most commonly found in marine or brackish waters; however, some species have also been reported from freshwater. Description ''Eutreptia'' consists of single, free-swimming cells that are spindle-shaped with pronounced euglenoid movement (metaboly). Two heterodynamic flagella are present, both highly active while swimming, with a reddish eyespot near the base. ''Eutreptia'' is photosynthetic with green chloroplasts; there may be numerous discoid or ribbon-shaped chloroplasts, often radiating from central pyrenoids surrounded by grains of paramylon. The chloroplast structure is similar to that of ''Euglena viridis'', but in ''Eutreptia'' what appears to be a stellate chloroplast actually consists complex of ribbon-shaped chloroplasts each with a terminal pyrenoid. While swimming, it rot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Euglenozoa Euglenozoa are a large group of flagellate Discoba. They include a variety of common free-living species, as well as a few important parasites, some of which infect humans. Euglenozoa are represented by four major groups, ''i.e.,'' Kinetoplastea, Diplonemea, Euglenida, and Symbiontida. Euglenozoa are unicellular, mostly around in size, although some euglenids get up to long. Structure Most euglenozoa have two flagella, which are inserted parallel to one another in an apical or subapical pocket. In some these are associated with a cytostome or mouth, used to ingest bacteria or other small organisms. This is supported by one of three sets of microtubules that arise from the flagellar bases; the other two support the dorsal and ventral surfaces of the cell. Some other euglenozoa feed through absorption, and many euglenids possess chloroplasts, the only eukaryotes outside Diaphoretickes to do so without performing kleptoplasty, and so obtain energy through photosynthesis. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Eutreptia Thiophila ''Eutreptia'' is a genus of Euglenozoa belonging to the family Eutreptiaceae (Eutreptiidae). The genus was first described by Maximilian Perty in 1852. It has a cosmopolitan distribution, and is most commonly found in marine or brackish waters; however, some species have also been reported from freshwater. Description ''Eutreptia'' consists of single, free-swimming cells that are spindle-shaped with pronounced euglenoid movement (metaboly). Two heterodynamic flagella are present, both highly active while swimming, with a reddish eyespot near the base. ''Eutreptia'' is photosynthetic with green chloroplasts; there may be numerous discoid or ribbon-shaped chloroplasts, often radiating from central pyrenoids surrounded by grains of paramylon. The chloroplast structure is similar to that of ''Euglena viridis'', but in ''Eutreptia'' what appears to be a stellate chloroplast actually consists complex of ribbon-shaped chloroplasts each with a terminal pyrenoid. While swimming, it rot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Eutreptiella ''Eutreptiella'' is a genus of Euglenozoa belonging to the family Eutreptiaceae (Eutreptiidae). The genus was first described by A. M. da Cunha in 1914. The genus has a cosmopolitan distribution. Description ''Eutreptiella'' consists of single, free-swimming flagellate cells. Cells have two or four unequal flagella, an eyespot (stigma), and discoid, stellate or reticulate chloroplasts (according to the species) The cells exhibit a form of movement called metaboly. Habitat and ecology ''Eutreptiella'' is found in marine habitats (typically in the neritic zone), or in brackish habitats such as estuaries. During spring and summer, it can form blooms and become locally dominant. At least one species ('' E. eupharyngea'') is mixotrophic and feeds on marine heteretrophic bacteria and cyanobacteria. Blooms of euglenoids can be beneficial, as a source of nutrition for animals. However, ''Eutreptiella'' has also been implicated in fish kills in Mexico. Biochemistry The chloropl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Euglena Viridis ''Euglena viridis'' is a single-celled species of euglenoid, a type of microalgae. It is one of the oldest-known species of ''Euglena'', and was first seen by Antonie van Leeuwenhoek in 1764. It is found in freshwater habitats worldwide. ''Euglena viridis'', along with other ''Euglena'' species, are well-studied. Cells of ''E. viridis'' have a secondary chloroplast. The chloroplast is bounded by three layers of membrane without a nucleomorph. Taxonomy ''Euglena viridis'' is one of the first ''Euglena'' species named when Ehrenberg established the genus ''Euglena''. ''Euglena viridis'' is also the type species of this genus. The whole group of Euglenozoa was originally placed in a group called Excavata. However, Excavata has been thought not monophyletic and is divided into several groups. Now, Euglenozoa is placed below a group in Discoba. Phylogeny According to molecular evidence, phylogenetic relationships between ''Euglena viridis'' and its close relatives are as follo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]