Journal
PLANT JOURNAL
Volume 75, Issue 2, Pages 258-269Publisher
WILEY
DOI: 10.1111/tpj.12177
Keywords
preprophase band; division plane; phragmoplast; cytokinesis; cytoskeleton; Arabidopsis thaliana; Physcomitrella patens; Tradescantia virginiana; maize
Categories
Funding
- Deutsche Forschungsgemeinschaft [MU3133/1-1]
- National Science Foundation (NSF-MCB) [1244202]
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1244202] Funding Source: National Science Foundation
Ask authors/readers for more resources
In plants, as in all eukaryotic organisms, microtubule- and actin-filament based structures play fundamental roles during cell division. In addition to the mitotic spindle, plant cells have evolved a unique cytoskeletal structure that designates a specific division plane before the onset of mitosis via formation of a cortical band of microtubules and actin filaments called the preprophase band. During cytokinesis, a second plant-specific microtubule and actin filament structure called the phragmoplast directs vesicles to create the new cell wall. In response to intrinsic and extrinsic cues, many plant cells form a preprophase band in G(2), then the preprophase band recruits specific proteins to populate the cortical division site prior to disassembly of the preprophase band in prometaphase. These proteins are thought to act as a spatial reminder that actively guides the phragmoplast towards the cortical division site during cytokinesis. A number of proteins involved in determination and maintenance of the plane of cell division have been identified. Our current understanding of the molecular interactions of these proteins and their regulation of microtubules is incomplete, but advanced imaging techniques and computer simulations have validated some early concepts of division site determination.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available