Image:Preprophase.jpg

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[edit] Summary

[edit] Description

Microtubule dynamics during preprophase and prophase in plant cell mitosis.

The images follow a tobacco BY-2 cell through the first stages of mitosis. N = Nucleus, V = Vacuole, PPB = Preprophase band, MTN = Microtubule nucleation, NEB = Nuclear envelope breakdown. The growing ends of microtubules are shown in green (labeled with green fluorescent protein fused to the microtubule plus end binding protein EB1 of Arabidopsis thaliana).

1) and 2): The preprophase band is visible at the cell wall.
3) Microtubles start nucleating at the nuclear envelope.
4) The preprophase band starts to disappear.
5) Microtubules around the nucleus form the prophase spindle.
6) The nuclear envelope breaks down and the spindle microtubules occupy the nuclear space.

Also see the movie corresponding to this figure. The movie is accelerated 100 times. The real time is 12 min.

[edit] Image source/attribution

Modified (by adding additional labels) from figure 2G-L from Dhonukshe, P, Mathur, J, Hülskamp, M, Gadella, TWJ (2005): Microtubule plus-ends reveal essential links between intracellular polarization and localized modulation of endocytosis during division-plane establishment in plant cells. BMC Biology 3:11, doi:10.1186/1741-7007-3-11

[edit] Copyright

[edit] License

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

[edit] Licensing

This file is licensed under Creative Commons Attribution 2.5 License.

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(del) (cur) 16:10, 10 February 2007 . . Tameeria (Talk | contribs) . . 890×358 (129,348 bytes) (==Description== Microtubule dynamics during '''preprophase''' and prophase in plant cell mitosis. The images follow a tobacco BY-2 cell through the first stages of mitosis. N = Nucleus, V = Vacuole, PPB = Preprophase band, MTN = M)