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 microtuhjkkbules 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 breakhhjs 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.
Fecha
10 de febrero de 2007 (fecha original de carga)Pisdez
Fuente
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. Transferido desde en.wikipedia a Commons por Mys_721tx.
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Registro original de carga
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2007-02-10 16:10 Tameeria 890×358× (129348 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
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