ArticlePlant physiology2010
Tethering factors required for cytokinesis in Arabidopsis.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Integrative Transcriptomic and Phosphoproteomic Analysis Reveals Key Components of the SnRK1 Signaling Network in Rice.Plant direct · 2025Article
- Roles of the ArabidopsisInternational journal of molecular sciences · 2024Article
- Regulation of adaptive growth decisions via phosphorylation of the TRAPPII complex in Arabidopsis.The Journal of cell biology · 2024Article
- The phosphoinositide signature guides the final step of plant cytokinesis.Science advances · 2023Article
- Rab GTPases, tethers, and SNAREs work together to regulateFrontiers in plant science · 2023Review
- RAB GTPases and SNAREs at the trans-Golgi network in plants.Journal of plant research · 2022Review
- Cell biology of primary cell wall synthesis in plants.The Plant cell · 2022Review
- TRIPP Is a Plant-Specific Component of the Arabidopsis TRAPPII Membrane Trafficking Complex with Important Roles in Plant Development.The Plant cell · 2020Article
- An essential role for Arabidopsis Trs33 in cell growth and organization in plant apical meristems.Plant cell reports · 2020Article
- AtTRAPPC11/ROG2: A Role for TRAPPs in Maintenance of the PlantThe Plant cell · 2019Article
- TRAPPC9: Novel insights into its trafficking and signaling pathways in health and disease (Review).International journal of molecular medicine · 2018Review
- SCD1 and SCD2 Form a Complex That Functions with the Exocyst and RabE1 in Exocytosis and Cytokinesis.The Plant cell · 2017Article
- Vesicle Dynamics during Plant Cell Cytokinesis Reveals Distinct Developmental Phases.Plant physiology · 2017Article
- Tethering Complexes in the Arabidopsis Endomembrane System.Frontiers in cell and developmental biology · 2016Review
- TRAPP Complexes in Secretion and Autophagy.Frontiers in cell and developmental biology · 2016Review
- Article
- Identification of Regulatory and Cargo Proteins of Endosomal and Secretory Pathways in Arabidopsis thaliana by Proteomic Dissection.Molecular & cellular proteomics : MCP · 2015Article
- Golgi- and trans-Golgi network-mediated vesicle trafficking is required for wax secretion from epidermal cells.Plant physiology · 2014Article
- Identification of trans-golgi network proteins in Arabidopsis thaliana root tissue.Journal of proteome research · 2014Article
- Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
At the end of the cell cycle, the nascent cross wall is laid down within a transient membrane compartment referred to as the cell plate. Tethering factors, which act by capturing vesicles and holding them in the vicinity of their target membranes, are likely to play an important role in the first stages of cell plate assembly. Factors required for cell plate biogenesis, however, remain to be identified. In this study, we used a reverse genetic screen to isolate tethering factors required for cytokinesis in Arabidopsis (Arabidopsis thaliana). We focused on the TRAPPI and TRAPPII (for transport protein particle) tethering complexes, which are thought to be required for the flow of traffic through the Golgi and for trans-Golgi network function, as well as on the GARP complex, thought to be required for the tethering of endocytotic vesicles to the trans-Golgi network. We found weak cytokinesis defects in some TRAPPI mutants and strong cytokinesis defects in all the TRAPPII lines we surveyed. Indeed, four insertion lines at the TRAPPII locus AtTRS120 had canonical cytokinesis-defective seedling-lethal phenotypes, including cell wall stubs and incomplete cross walls. Confocal and electron microscopy showed that in trs120 mutants, vesicles accumulated at the equator of dividing cells yet failed to assemble into a cell plate. This shows that AtTRS120 is required for cell plate biogenesis. In contrast to the TRAPP complexes, we found no conclusive evidence for cytokinesis defects in seven GARP insertion lines. We discuss the implications of these findings for the origin and identity of cell plate membranes.
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