Difference between revisions of "Microtubule"

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[[file:Fig 67.jpg|thumb|'''Fig.1.''' Microtubules (Mt) and tubulin paracrystals (T) in canal ectoplasm of ''Assilina ammonoides'' (GRONOVIUS). TEM micrograph, courtesy S. REBER-LEUTENEGGER, x 24,000.
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[[file:Fig 67.jpg|thumb|'''Fig.1.''' Microtubules (Mt) and tubulin paracrystals (T) in canal ectoplasm of ''Assilina ammonoides'' (Gronovius). TEM micrograph, courtesy S. Reber-Leutenegger, x 24,000.
'''B:''' bacteria; '''M:''' mitochondria; '''Mt:''' microtubule; '''Pl:''' plasmalemma; '''T:''' tubulin paracrystals; '''V:''' vacuoles with or without fibrillar content (waste products?) (from [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Hottinger 2006]; fig.67)]]
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'''B:''' bacteria; '''M:''' mitochondria; '''Mt:''' microtubule; '''Pl:''' plasmalemma; '''T:''' tubulin paracrystals; '''V:''' vacuoles with or without fibrillar content (waste products?); (Hottinger, 2006; fig. 67 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]  
  
 
==Definition==
 
==Definition==
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'''MICROTUBULE''' - polymerized heterodimers of alpha and beta tubulin in helicoids that form long, straight cylinders reinforcing the pseudopodial ectoplasm of the pseudopods and the plasmatic content of interlocular spaces, i.e. canal systems. May depolymerize and form paracrystals in the chamber plasm. The paracrystals are believed to be the reservoir that feeds the polymerization when pseudopods expand through an orifice into the ambient environment.
 
'''MICROTUBULE''' - polymerized heterodimers of alpha and beta tubulin in helicoids that form long, straight cylinders reinforcing the pseudopodial ectoplasm of the pseudopods and the plasmatic content of interlocular spaces, i.e. canal systems. May depolymerize and form paracrystals in the chamber plasm. The paracrystals are believed to be the reservoir that feeds the polymerization when pseudopods expand through an orifice into the ambient environment.
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==References==
 
==References==
 
 
Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744.
 
Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744.
  
 
                    
 
                    
  
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Latest revision as of 15:10, 17 April 2019

Fig.1. Microtubules (Mt) and tubulin paracrystals (T) in canal ectoplasm of Assilina ammonoides (Gronovius). TEM micrograph, courtesy S. Reber-Leutenegger, x 24,000. B: bacteria; M: mitochondria; Mt: microtubule; Pl: plasmalemma; T: tubulin paracrystals; V: vacuoles with or without fibrillar content (waste products?); (Hottinger, 2006; fig. 67 [1] CC/BY-NC-SA)

Definition

  • according to Hottinger (2006):

MICROTUBULE - polymerized heterodimers of alpha and beta tubulin in helicoids that form long, straight cylinders reinforcing the pseudopodial ectoplasm of the pseudopods and the plasmatic content of interlocular spaces, i.e. canal systems. May depolymerize and form paracrystals in the chamber plasm. The paracrystals are believed to be the reservoir that feeds the polymerization when pseudopods expand through an orifice into the ambient environment.



See also


References

Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744.


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