Description of Balamuthia

provided by BioPedia
Locomotive amoebae 12 to 60 µm in length, moving with leading lobose pseudopodium or by spider-like activity of the many radiating unbranched pseudopodia. Usually uninucleate with a vesicular nucleus about 5 µm diameter. Forms cysts. Mature cysts with tripartite wall consisting of an outer loose ectocyst, an inner endocyst and a middle mesocyst. Pathogenic amoeba that causes amoebic encephalitis in animals and with at least one report in humans. Type species B. mandrillaris Visvesvara, Schuster & Martinez, 1993 isolated from the brain of a mandrill baboon.
license
cc-by-nc
author
biopedia
provider
BioPedia
original
visit source
partner site
BioPedia

Discosea ( Bosnian )

provided by wikipedia emerging languages

Discosea je razred Amoebozoa, koji se sastoji od golih ameba spljoštenog, diskoidnog oblika.[1] Članovi grupe ne proizvode cjevaste ili supcilinindrične pseudopodije, poput ameba klase Tubulinea. Kada su u pokretu, na prednjem rubu ćelije formira se prozirni sloj nazvan "hijaloplazma" (vidi lamelipodija). Kod nekih može se iz ove hijaloplazme proširiti kratka "subpsudopodija", ali zrnati sadržaj ćelije se u njih ne uliva kao u pravoj pseudopodiji. Diskozejskim amebama nedostaju tvrde ljušture, ali neke poput rodova Cochliopodium i Korotnevella izdvajaju zamršene organske krljušti koje mogu pokriti gornju (dorzalnu) površinu ćelije. Nijedna vrsta nema bičeva ili bičasti životni stadij.[2][3] Taksonomski sastav Discosea sličan je sastavu razreda Flabellinea, koji su 2005. predložili Aleksej Smirnov i njegovi saradnici.[4] However, Discosea is a more comprehensive taxon, including several groups not included in Flabellinea.[5] In 2011, Smirnov et al. accepted Discosea as a class, and reduced Flabellinea to the rank of a subclass with the name Flabellinia.[2]

Također pogledajte

Reference

  1. ^ a b Cavalier-Smith, Thomas; Chao, Ema E. -Y.; Oates, Brian (18. 5. 2004). "Molecular phylogeny of Amoebozoa and the evolutionary significance of the unikont Phalansterium". European Journal of Protistology. 40 (1): 21–48. doi:10.1016/j.ejop.2003.10.001.
  2. ^ a b Smirnov, Alexey V.; Chao, Ema; Nassonova, Elena S.; Cavalier-Smith, Thomas (1. 10. 2011). "A revised classification of naked lobose amoebae (Amoebozoa: lobosa)". Protist. 162 (4): 545–570. doi:10.1016/j.protis.2011.04.004. ISSN 1618-0941. PMID 21798804.
  3. ^ Adl, Sina M.; Simpson, Alastair G. B.; Lane, Christopher E.; Lukeš, Julius; Bass, David; Bowser, Samuel S.; Brown, Matthew W.; Burki, Fabien; Dunthorn, Micah (1. 9. 2012). "The revised classification of eukaryotes". The Journal of Eukaryotic Microbiology. 59 (5): 429–493. doi:10.1111/j.1550-7408.2012.00644.x. ISSN 1550-7408. PMC 3483872. PMID 23020233.
  4. ^ Smirnov, Alexey; Nassonova, Elena; Berney, Cédric; Fahrni, José; Bolivar, Ignacio; Pawlowski, Jan (1. 8. 2005). "Molecular phylogeny and classification of the lobose amoebae". Protist. 156 (2): 129–142. doi:10.1016/j.protis.2005.06.002. ISSN 1434-4610. PMID 16171181.
  5. ^ "Catalogue of Organisms: Discosea: Keeping a Low Profile". coo.fieldofscience.com. Pristupljeno 3. 5. 2016.

license
cc-by-sa-3.0
copyright
Autori i urednici Wikipedije

Discosea: Brief Summary ( Bosnian )

provided by wikipedia emerging languages

Discosea je razred Amoebozoa, koji se sastoji od golih ameba spljoštenog, diskoidnog oblika. Članovi grupe ne proizvode cjevaste ili supcilinindrične pseudopodije, poput ameba klase Tubulinea. Kada su u pokretu, na prednjem rubu ćelije formira se prozirni sloj nazvan "hijaloplazma" (vidi lamelipodija). Kod nekih može se iz ove hijaloplazme proširiti kratka "subpsudopodija", ali zrnati sadržaj ćelije se u njih ne uliva kao u pravoj pseudopodiji. Diskozejskim amebama nedostaju tvrde ljušture, ali neke poput rodova Cochliopodium i Korotnevella izdvajaju zamršene organske krljušti koje mogu pokriti gornju (dorzalnu) površinu ćelije. Nijedna vrsta nema bičeva ili bičasti životni stadij. Taksonomski sastav Discosea sličan je sastavu razreda Flabellinea, koji su 2005. predložili Aleksej Smirnov i njegovi saradnici. However, Discosea is a more comprehensive taxon, including several groups not included in Flabellinea. In 2011, Smirnov et al. accepted Discosea as a class, and reduced Flabellinea to the rank of a subclass with the name Flabellinia.

 src=

Acanthamoeba sp.

 src=

Thecamoeba sp.

 src=

Mayorella (Amoebozoa, Discosea)

license
cc-by-sa-3.0
copyright
Autori i urednici Wikipedije

Flabellinea ( Interlingua (International Auxiliary Language Association) )

provided by wikipedia emerging languages

Flabellinea es un classe, phylo de Lobosa.

Nota
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors

Discosea

provided by wikipedia EN

Discosea is a class of Amoebozoa, consisting of naked amoebae with a flattened, discoid body shape.[1] Members of the group do not produce tubular or subcylindrical pseudopodia, like amoebae of the class Tubulinea. When a discosean is in motion, a transparent layer called hyaloplasm forms at the leading edge of the cell (see lamelliopodium). In some discoseans, short "subpseudopodia" may be extended from this hyaloplasm, but the granular contents of the cell do not flow into these, as in true pseudopodia. Discosean amoebae lack hard shells, but some, like Cochliopodium and Korotnevella secrete intricate organic scales which may cover the upper (dorsal) surface of the cell. No species have flagella or flagellated stages of life.[3][4]

The composition of Discosea is similar to that of the class Flabellinea, proposed by Alexey Smirnov and his collaborators in 2005.[5] However, Discosea is a more comprehensive taxon, including several groups not included in Flabellinea.[6] In 2011, Smirnov et al. accepted Discosea as a class, and reduced Flabellinea to the rank of a subclass with the name Flabellinia.[3]

Taxonomy

Class Discosea Cavalier-Smith 2004 stat. nov. Adl et al. 2018[7]

References

  1. ^ a b Cavalier-Smith, Thomas; Chao, Ema E. -Y.; Oates, Brian (2004-05-18). "Molecular phylogeny of Amoebozoa and the evolutionary significance of the unikont Phalansterium". European Journal of Protistology. 40 (1): 21–48. doi:10.1016/j.ejop.2003.10.001.
  2. ^ Kang S, Tice AK, Spiegel FW, Silberman JD, Pánek T, Cepicka I, et al. (September 2017). "Between a Pod and a Hard Test: The Deep Evolution of Amoebae". Molecular Biology and Evolution. 34 (9): 2258–2270. doi:10.1093/molbev/msx162. PMC 5850466. PMID 28505375.
  3. ^ a b Smirnov, Alexey V.; Chao, Ema; Nassonova, Elena S.; Cavalier-Smith, Thomas (2011-10-01). "A revised classification of naked lobose amoebae (Amoebozoa: lobosa)". Protist. 162 (4): 545–570. doi:10.1016/j.protis.2011.04.004. ISSN 1618-0941. PMID 21798804.
  4. ^ Adl, Sina M.; Simpson, Alastair G. B.; Lane, Christopher E.; Lukeš, Julius; Bass, David; Bowser, Samuel S.; Brown, Matthew W.; Burki, Fabien; Dunthorn, Micah (2012-09-01). "The revised classification of eukaryotes". The Journal of Eukaryotic Microbiology. 59 (5): 429–493. doi:10.1111/j.1550-7408.2012.00644.x. ISSN 1550-7408. PMC 3483872. PMID 23020233.
  5. ^ Smirnov, Alexey; Nassonova, Elena; Berney, Cédric; Fahrni, José; Bolivar, Ignacio; Pawlowski, Jan (2005-08-01). "Molecular phylogeny and classification of the lobose amoebae". Protist. 156 (2): 129–142. doi:10.1016/j.protis.2005.06.002. ISSN 1434-4610. PMID 16171181.
  6. ^ "Catalogue of Organisms: Discosea: Keeping a Low Profile". coo.fieldofscience.com. Retrieved 2016-05-03.
  7. ^ Adl, Sina M.; Bass, David; Lane, Christopher E.; Lukeš, Julius; Schoch, Conrad L.; Smirnov, Alexey; Agatha, Sabine; Berney, Cedric; Brown, Matthew W. (2018-09-26). "Revisions to the Classification, Nomenclature, and Diversity of Eukaryotes". Journal of Eukaryotic Microbiology. 66 (1): 4–119. doi:10.1111/jeu.12691. PMC 6492006. PMID 30257078.

 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Discosea: Brief Summary

provided by wikipedia EN

Discosea is a class of Amoebozoa, consisting of naked amoebae with a flattened, discoid body shape. Members of the group do not produce tubular or subcylindrical pseudopodia, like amoebae of the class Tubulinea. When a discosean is in motion, a transparent layer called hyaloplasm forms at the leading edge of the cell (see lamelliopodium). In some discoseans, short "subpseudopodia" may be extended from this hyaloplasm, but the granular contents of the cell do not flow into these, as in true pseudopodia. Discosean amoebae lack hard shells, but some, like Cochliopodium and Korotnevella secrete intricate organic scales which may cover the upper (dorsal) surface of the cell. No species have flagella or flagellated stages of life.

The composition of Discosea is similar to that of the class Flabellinea, proposed by Alexey Smirnov and his collaborators in 2005. However, Discosea is a more comprehensive taxon, including several groups not included in Flabellinea. In 2011, Smirnov et al. accepted Discosea as a class, and reduced Flabellinea to the rank of a subclass with the name Flabellinia.

 src=

Acanthamoeba sp.

 src=

Thecamoeba sp.

 src=

Mayorella (Amoebozoa, Discosea)

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Flabellinia

provided by wikipedia EN

The Flabellinia are a subclass of Amoebozoa. During locomotion the cells are flattened and have a clear layer called hyaloplasm along the front margin. Some form slender subpseudopodia projecting outward from the hyaloplasm, but the cell mass does not flow into these as in true pseudopodia, and advances without a definite central axis as in the Tubulinea. They also lack distinctive features like shells and flagella, and are united mainly by evidence from molecular trees.

The group was originally created by Alexey Smirnov and his coauthors as the class Flabellinea, which was similar in composition to the group Discosea, proposed by Cavalier-Smith et al. (2004).[2] In 2011, Smirnov accepted Discosea as a class and reduced Flabellinea to the rank of a subclass, with the name Flabellinia.[3]

References

  1. ^ Smirnov A, Nassonova E, Berney C, Fahrni J, Bolivar I, Pawlowski J (August 2005). "Molecular phylogeny and classification of the lobose amoebae". Protist. 156 (2): 129–42. doi:10.1016/j.protis.2005.06.002. PMID 16171181.
  2. ^ Cavalier-Smith, T.; Chao, E-Y; Oates, B. (2004). "Molecular phylogeny of the Amoebozoa and evolutionary significance of the unikont Phalansterium". European Journal of Protistology. 40: 21–48. doi:10.1016/j.ejop.2003.10.001.
  3. ^ Smirnov, Alexey V.; Chao, Ema; Nassonova, Elena S.; Cavalier-Smith, Thomas (2011-10-01). "A revised classification of naked lobose amoebae (Amoebozoa: lobosa)". Protist. 162 (4): 545–570. doi:10.1016/j.protis.2011.04.004. ISSN 1618-0941. PMID 21798804.

 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Flabellinia: Brief Summary

provided by wikipedia EN

The Flabellinia are a subclass of Amoebozoa. During locomotion the cells are flattened and have a clear layer called hyaloplasm along the front margin. Some form slender subpseudopodia projecting outward from the hyaloplasm, but the cell mass does not flow into these as in true pseudopodia, and advances without a definite central axis as in the Tubulinea. They also lack distinctive features like shells and flagella, and are united mainly by evidence from molecular trees.

The group was originally created by Alexey Smirnov and his coauthors as the class Flabellinea, which was similar in composition to the group Discosea, proposed by Cavalier-Smith et al. (2004). In 2011, Smirnov accepted Discosea as a class and reduced Flabellinea to the rank of a subclass, with the name Flabellinia.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Discosea ( Spanish; Castilian )

provided by wikipedia ES

Discosea o Flabellinea es una clase de protistas del filo Amoebozoa encontradas en agua dulce, suelo y en ambientes marinos.[2][3][4]​ Comprende aquellas amebas que durante la locomoción se aplanan tomando la forma de disco y exhiben un flujo citoplasmático poliaxial, esto es, sin un eje central definido. Nunca producen seudópodos cilíndricos ni alteran su forma locomotiva. Esto los distingue del otro grupo de amebas lobosas, Tubulinea. En la mayoría de los casos, los movimientos celulares se realizan como un todo, sin seudópodos separados. Pueden emitir subseudópodos de diferentes formas (seudópodos secundarios perfectamente definidos que no están implicados directamente en la locomoción).[5][6][7]​ Son amebas desnudas que carecen de características distintivas como testas o tecas, aunque pueden tener una cubierta celular. Tampoco presentan flagelos en ninguna etapa de su ciclo vital.

Incluye el género Acanthamoeba, que es importante en medicina porque causa encefalitis y queratitis amébica, Balamuthia mandrillaris, una ameba de vida libre causante de amebiasis en seres humanos, y Thecamoeba, que a pesar de su nombre carece de teca.

Clasificación

Discosea comprende dos subclases:

  • Flabellinia. Incluye amebas aplanadas, por lo general en forma de abanico, discoide o triangular irregular, nunca con subseudopodia puntiaguda. Las células carecen de centrosomas.
  • Longamoebia. Comprende amebas aplanadas de cuerpo alargado (de ahí el nombre) y con subseudopodia puntiaguda. Las células de uno de los órdenes presenta centrosomas.

La unidad del grupo se sustenta principalmente en árboles moleculares. El término Discosea fue introducido por Cavalier-Smith et al. (2004),[3]​ mientras que Flabellinea, actualmente restringido a una subclase, fue introducido por Smirnov et al. (2005).[6]

Galería

Referencias

  1. Ruggiero, M. A., Gordon, D. P., Orrell, T. M., Bailly, N., Bourgoin, T., Brusca, R. C., Cavalier-Smith, T., Guiry, M.D. y Kirk, P. M. (2015). A Higher Level Classification of All Living Organisms.
  2. Adl, S.M. et al. (2012). The revised classification of eukaryotes. Journal of Eukaryotic Microbiology, 59(5), 429-514.
  3. a b Cavalier-Smith, T., Chao, E-Y, Oates, B. (2004). «Molecular phylogeny of the Amoebozoa and evolutionary significance of the unikont Phalansterium». European Journal of Protistology 40: 21-48.
  4. Peglar et al. (2003). «Two new small-subunit ribosomal RNA gene lineages within the subclass Gymnamoebia». Journal of Eukaryotic Microbiology 50: 224-232.
  5. Smirnov, A. V., & Brown, S. (2004). Guide to the methods of study and identification of soil gymnamoebae. Protistology, 3(3), 148-190.
  6. a b Smirnov, A., Nassonova, E., Berney, C., Fahrni, J., Bolivar, I., & Pawlowski, J. (2005). Molecular phylogeny and classification of the lobose amoebae Archivado el 5 de enero de 2016 en la Wayback Machine.. Protist, 156(2), 129-142.
  7. Smirnov, A. V., Chao, E., Nassonova, E. S., & Cavalier-Smith, T. (2011). A revised classification of naked lobose amoebae (Amoebozoa: Lobosa). Protist, 162(4), 545-570.

 title=
license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Discosea: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Discosea o Flabellinea es una clase de protistas del filo Amoebozoa encontradas en agua dulce, suelo y en ambientes marinos.​​​ Comprende aquellas amebas que durante la locomoción se aplanan tomando la forma de disco y exhiben un flujo citoplasmático poliaxial, esto es, sin un eje central definido. Nunca producen seudópodos cilíndricos ni alteran su forma locomotiva. Esto los distingue del otro grupo de amebas lobosas, Tubulinea. En la mayoría de los casos, los movimientos celulares se realizan como un todo, sin seudópodos separados. Pueden emitir subseudópodos de diferentes formas (seudópodos secundarios perfectamente definidos que no están implicados directamente en la locomoción).​​​ Son amebas desnudas que carecen de características distintivas como testas o tecas, aunque pueden tener una cubierta celular. Tampoco presentan flagelos en ninguna etapa de su ciclo vital.

Incluye el género Acanthamoeba, que es importante en medicina porque causa encefalitis y queratitis amébica, Balamuthia mandrillaris, una ameba de vida libre causante de amebiasis en seres humanos, y Thecamoeba, que a pesar de su nombre carece de teca.

license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Flabellinia ( Spanish; Castilian )

provided by wikipedia ES

Flabellinia es una subclase de protistas del filo Amoebozoa.[2][3][4]​ Incluye amebas aplanadas, por lo general en forma de abanico, discoide o triangular irregular, nunca con subseudopodia puntiaguda. Las células carecen de centrosomas.[2]

Referencias

  1. Ruggiero, M. A., Gordon, D. P., Orrell, T. M., Bailly, N., Bourgoin, T., Brusca, R. C., Cavalier-Smith, T., Guiry, M.D. y Kirk, P. M. (2015). A Higher Level Classification of All Living Organisms.
  2. a b Adl, S.M. et al. (2012). The revised classification of eukaryotes. Journal of Eukaryotic Microbiology, 59(5), 429-514.
  3. Cavalier-Smith, T., Chao, E-Y, Oates, B. (2004). «Molecular phylogeny of the Amoebozoa and evolutionary significance of the unikont Phalansterium». European Journal of Protistology 40: 21-48.
  4. Peglar et al. (2003). «Two new small-subunit ribosomal RNA gene lineages within the subclass Gymnamoebia». Journal of Eukaryotic Microbiology 50: 224-232.

 title=
license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Flabellinia: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Flabellinia es una subclase de protistas del filo Amoebozoa.​​​ Incluye amebas aplanadas, por lo general en forma de abanico, discoide o triangular irregular, nunca con subseudopodia puntiaguda. Las células carecen de centrosomas.​

license
cc-by-sa-3.0
copyright
Autores y editores de Wikipedia
original
visit source
partner site
wikipedia ES

Discosea ( Polish )

provided by wikipedia POL

Discosea – gromada ameb należących do supergrupy Amoebozoa w klasyfikacji Cavaliera-Smitha[1]. Klasyfikacja Adla traktuje Discosea jako klad[2].

Należą tutaj następujące podgromady i rzędy według Cavalier-Smitha[1]:

W klasyfikacji Adl'a wyróżniamy tylko 4 klady[2]:

Przypisy

  1. a b Alexey V. Smirnov, Ema Chao, Elena S. Nassonova, Thomas Cavalier-Smith. A Revised Classification of Naked Lobose Amoebae (Amoebozoa: Lobosa). „Protist”. 162, s. 545-570, 2011.
  2. a b Sina M. Adl, Alastair G. B. Simpson, Christopher E. Lane i inni. The Revised Classification of Eukaryotes. „J. Eukaryot. Microbiol.”. 59(5), s. 429-493, 2012.
license
cc-by-sa-3.0
copyright
Autorzy i redaktorzy Wikipedii
original
visit source
partner site
wikipedia POL

Discosea: Brief Summary ( Polish )

provided by wikipedia POL

Discosea – gromada ameb należących do supergrupy Amoebozoa w klasyfikacji Cavaliera-Smitha. Klasyfikacja Adla traktuje Discosea jako klad.

Należą tutaj następujące podgromady i rzędy według Cavalier-Smitha:

Podgromada Flabellinia Smirnov i inni, 2005 Rząd Dactylopodida Smirnov i inni, 2005 Rząd Vannellida Smirnov i inni, 2005 Rząd Himatismenida Page, 1987 Rząd Stygamoebida Smirnov i Cavalier-Smith, 2011 Rząd Pellitida Smirnov i Cavalier-Smith Rząd Trichosida Moebius, 1889 Podgromada Longamoebia Smirnov i Cavalier-Smith, 2011 Rząd Dermamoebida Cavalier-Smith, 2004 Rząd Thecamoebida Smirnov i Cavalier-Smith Rząd Centramoebida Rogerson i Patterson, 2002 przywrócony przez Cavalier-Smith, 2004

W klasyfikacji Adl'a wyróżniamy tylko 4 klady:

Flabellinia Smirnov i inni, 2005 Himatismenida Page, 1987 Stygamoebida Smirnov i inni 2011 Longamoebia Smirnov i Cavalier-Smith, 2011
license
cc-by-sa-3.0
copyright
Autorzy i redaktorzy Wikipedii
original
visit source
partner site
wikipedia POL