Demarcation of the cortical division zone in dividing plant cells
Daniel Van Damme1, Danny Geelen
1Department of Plant Systems Biology, Flanders Institute for Biotechnology, Ghen University, B-9052 Ghent, Belgium.
Abstract:
Somatic cytokinesis in higher plants involves, besides the actual construction of a new cell wall, also the determination of a division zone. Several proteins have been shown to play a part in the mechanism that somatic plant cells use to control the positioning of the new cell wall. Plant cells determine the division zone at an early stage of cell division and use a transient microtubular structure, the preprophase band (PPB), during this process. The PPB is formed at the division zone, leaving behind a mark that during cytokinesis is utilized by the phragmoplast to guide the expanding cell plate toward the correct cortical insertion site. This review discusses old and new observations with regard to mechanisms implicated in the orientation of cell division and determination of a cortical division zone.
More Related Videos
13:47Ex utero Electroporation and Whole Hemisphere Explants: A Simple Experimental Method for Studies of Early Cortical Development
Published on: April 3, 2013
05:41In Vitro Ovule Cultivation for Live-cell Imaging of Zygote Polarization and Embryo Patterning in Arabidopsis thaliana
Published on: September 11, 2017
Related Concept Videos
Determining the Plane of Cell Division
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
Determining the Plane of Cell Division
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
The Phragmoplast
The...
The Phragmoplast
The...
Animal and Plant Cell Structure
Cell Division
Though both plant and animal cells divide by mitosis (for non-gametic cells) and meiosis (for gametic cells), they differ in the specifics of this process. Unlike animal cells, plant cells lack centrosomes — an organelle responsible for organizing the spindle fibers and segregating the chromosomes during cell...
Mitosis and Cytokinesis
The processes of the cell cycle occur over approximately 24 hours (in typical human cells) and in two major distinguishable stages. The...
