Molecular Mechanisms of Microtubule Nucleation in Tobacco BY-2 Cells

  • Anne-Catherine Schmit
  • Jean Canaday
  • Virginie Seltzer
  • Sarah Campagne
  • Etienne Herzog
  • Jean-Luc Evrard
  • Anne-Marie Lambert
Part of the Biotechnology in Agriculture and Forestry book series (AGRICULTURE, volume 53)


The dynamic organization of plant microtubules (MT) is unique in eukaryotes. Distinct MT arrays are assembled successively and spatially organized under cell cycle and developmental controls in the absence of a microtubuleorganizing center (MTOC). In other eukaryotes, most or even all microtubules emerge from a distinct organelle, the centrosome in animal cells or the spindle pole body in fungi. Since such organelles are not present in higher plant cells, how and where the different MT arrays are nucleated is an open question (Canaday et al. 2000; Vantard et al. 2000; Azimzadeh et al. 2001; Mayer and Jürgens 2002; Schmit 2002). In addition, translocation of pre-formed microtubules could also be involved in generating different microtubule arrays. The surface of plant nuclei has been functionally characterized as an MTOC (Mizuno 1993; Stoppin et al. 1994, 1996; Kumagai et al. 1995) and the cortical surface of the plasma membrane could play a similar role. Recent results suggest that plant microtubule nucleation and spatial organization may occur at different sites under cell cycle control (Canaday et al. 2000; Criqui and Genschik 2002; Mayer and Jürgens 2002).


Cortical Microtubule Nuclear Surface Spindle Pole Body Microtubule Array Curr Opin Plant Biol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Anne-Catherine Schmit
    • 1
  • Jean Canaday
    • 1
  • Virginie Seltzer
    • 1
  • Sarah Campagne
    • 1
  • Etienne Herzog
    • 1
  • Jean-Luc Evrard
    • 1
  • Anne-Marie Lambert
    • 2
  1. 1.Institut de Biologie Moléculaire des Plantes, Centre National de la Recherche Scientifique CNRS, UPR 2357Université Louis PasteurStrasbourgFrance
  2. 2.IBMPStrasbourg CedexFrance

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