Plant cytokinesis is orchestrated by the sequential action of the TRAPPII and exocyst tethering complexes
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.
PubMed
24882377
DOI
10.1016/j.devcel.2014.04.029
PII: S1534-5807(14)00276-7
Knihovny.cz E-resources
- MeSH
- Arabidopsis cytology physiology MeSH
- Cytokinesis physiology MeSH
- Cytoplasmic Vesicles metabolism MeSH
- Exocytosis physiology MeSH
- Microtubules metabolism MeSH
- Models, Molecular MeSH
- Arabidopsis Proteins metabolism MeSH
- Growth Plate cytology metabolism MeSH
- Vesicular Transport Proteins metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
- Names of Substances
- Arabidopsis Proteins MeSH
- transport protein particle, TRAPP MeSH Browser
- Vesicular Transport Proteins MeSH
Plant cytokinesis is initiated in a transient membrane compartment, the cell plate, and completed by a process of maturation during which the cell plate becomes a cross wall. How the transition from juvenile to adult stages occurs is poorly understood. In this study, we monitor the Arabidopsis transport protein particle II (TRAPPII) and exocyst tethering complexes throughout cytokinesis. We show that their appearance is predominantly sequential, with brief overlap at the onset and end of cytokinesis. The TRAPPII complex is required for cell plate biogenesis, and the exocyst is required for cell plate maturation. The TRAPPII complex sorts plasma membrane proteins, including exocyst subunits, at the cell plate throughout cytokinesis. We show that the two tethering complexes physically interact and propose that their coordinated action may orchestrate not only plant but also animal cytokinesis.
Botany Technische Universität München 85354 Freising Germany
Chair for Proteomics and Bioanalytics Technische Universität München 85354 Freising Germany
Department Biologie 1 Ludwig Maximillians Universität 82152 Planegg Martinsried Germany
References provided by Crossref.org
Plasma membrane phospholipid signature recruits the plant exocyst complex via the EXO70A1 subunit
EXO70A2 Is Critical for Exocyst Complex Function in Pollen Development
EXO70C2 Is a Key Regulatory Factor for Optimal Tip Growth of Pollen
Tethering Complexes in the Arabidopsis Endomembrane System
Endosidin2 targets conserved exocyst complex subunit EXO70 to inhibit exocytosis
