The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana

Osorio-Navarro C, Neira-Valenzuela G, Sierra P, Adamowski M, Toledo J, Norambuena L. 2025. The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana. Journal of Experimental Botany. 76(10), 2700–2714.

Download
No fulltext has been uploaded. References only!

Journal Article | Published | English

Scopus indexed
Author
Osorio-Navarro, Claudio; Neira-Valenzuela, Gabriel; Sierra, Paula; Adamowski, MaciekISTA ; Toledo, Jorge; Norambuena, Lorena
Department
Abstract
The central vacuole is a multifunctional organelle with the most significant occupancy in a differentiated plant cell. Plants depend on the function of the vacuole for critical development, growth, and environmental responses. As the cell expands, the vacuole changes shape and size, increasing its membrane and luminal content. The set of these events is called the vacuolar configuration process, which has not been well described. Our research highlights the impact of plasma membrane internalization on vacuole morphology during the vacuolar configuration process. We observed a direct correlation between differential endocytosis rates and the enrichment of vacuolar membranous structures. Chemical and genetic interference with clathrin-mediated endocytosis (CME) revealed that it is required for the vacuolar configuration of growing root cells. The contribution of CME to the vacuole configuration process co-occurs with the induction of post-trans-Golgi network (TGN)/early endosome (EE) trafficking with the participation of the Rab GTPases ARA6 and ARA7. Our results show that the CME plays an active role during vacuole configuration, most probably carrying the material that allows the establishment of the vacuole in elongating cells. Since membrane trafficking through the EE/TGN is required to reach the vacuole, additional players must be defined.
Publishing Year
Date Published
2025-07-02
Journal Title
Journal of Experimental Botany
Publisher
Oxford University Press
Acknowledgement
This research was supported by FONDECYT grants 1170950 and 1211311 and by ANID PhD fellowship 2020-21201663 to PhD student CO-N. The microscopes used in this work were funded by grants FONDEQUIP #EQM 140019 and #EQM12-0003 at the Advanced Microscopy Unit of the Biology Department, Faculty of Science, University of Chile. We thank Jiri Friml for donating the XVE»AUXILIN-LIKE2 (AX2) line to support our research. We wish to acknowledge the active and helpful discussion of all the members of the LNM team and the Plant Molecular Biology Centre at Universidad de Chile.
Volume
76
Issue
10
Page
2700-2714
ISSN
eISSN
IST-REx-ID

Cite this

Osorio-Navarro C, Neira-Valenzuela G, Sierra P, Adamowski M, Toledo J, Norambuena L. The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana. Journal of Experimental Botany. 2025;76(10):2700-2714. doi:10.1093/jxb/eraf084
Osorio-Navarro, C., Neira-Valenzuela, G., Sierra, P., Adamowski, M., Toledo, J., & Norambuena, L. (2025). The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana. Journal of Experimental Botany. Oxford University Press. https://doi.org/10.1093/jxb/eraf084
Osorio-Navarro, Claudio, Gabriel Neira-Valenzuela, Paula Sierra, Maciek Adamowski, Jorge Toledo, and Lorena Norambuena. “The Configuration of the Vacuole Is Driven by Clathrin-Mediated Trafficking in Root Cells of Arabidopsis Thaliana.” Journal of Experimental Botany. Oxford University Press, 2025. https://doi.org/10.1093/jxb/eraf084.
C. Osorio-Navarro, G. Neira-Valenzuela, P. Sierra, M. Adamowski, J. Toledo, and L. Norambuena, “The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana,” Journal of Experimental Botany, vol. 76, no. 10. Oxford University Press, pp. 2700–2714, 2025.
Osorio-Navarro C, Neira-Valenzuela G, Sierra P, Adamowski M, Toledo J, Norambuena L. 2025. The configuration of the vacuole is driven by clathrin-mediated trafficking in root cells of Arabidopsis thaliana. Journal of Experimental Botany. 76(10), 2700–2714.
Osorio-Navarro, Claudio, et al. “The Configuration of the Vacuole Is Driven by Clathrin-Mediated Trafficking in Root Cells of Arabidopsis Thaliana.” Journal of Experimental Botany, vol. 76, no. 10, Oxford University Press, 2025, pp. 2700–14, doi:10.1093/jxb/eraf084.

Export

Marked Publications

Open Data ISTA Research Explorer

Sources

PMID: 40056424
PubMed | Europe PMC

Search this title in

Google Scholar