PATELLINS are regulators of auxin mediated PIN1 relocation and plant development in Arabidopsis thaliana

R. Tejos, C. Rodríguez Furlán, M. Adamowski, M. Sauer, L. Norambuena, J. Friml, Journal of Cell Science 131 (2018).

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Journal Article | Published | English

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Author
Tejos, Ricardo; Rodríguez Furlán, Cecilia; Adamowski, MaciekIST Austria; Sauer, Michael; Norambuena, Lorena; Friml, JiríIST Austria
Department
Abstract
Coordinated cell polarization in developing tissues is a recurrent theme in multicellular organisms. In plants, a directional distribution of the plant hormone auxin is at the core of many developmental programs. A feedback regulation of auxin on the polarized localization of PIN auxin transporters in individual cells has been proposed as a self-organizing mechanism for coordinated tissue polarization, but the molecular mechanisms linking auxin signalling to PIN-dependent auxin transport remain unknown. We performed a microarray-based approach to find regulators of the auxin-induced PIN relocation in the Arabidopsis thaliana root. We identified a subset of a family of phosphatidylinositol transfer proteins (PITP), the PATELLINs (PATL). Here, we show that PATLs are expressed in partially overlapping cells types in different tissues going through mitosis or initiating differentiation programs. PATLs are plasma membrane-associated proteins accumulated in Arabidopsis embryos, primary roots, lateral root primordia, and developing stomata. Higher order patl mutants display reduced PIN1 repolarization in response to auxin, shorter root apical meristem, and drastic defects in embryo and seedling development. This suggests PATLs redundantly play a crucial role in polarity and patterning in Arabidopsis.
Publishing Year
Date Published
2018-01-29
Journal Title
Journal of Cell Science
Volume
131
Issue
2
Article Number
jcs.204198
ISSN
IST-REx-ID
913

Cite this

Tejos R, Rodríguez Furlán C, Adamowski M, Sauer M, Norambuena L, Friml J. PATELLINS are regulators of auxin mediated PIN1 relocation and plant development in Arabidopsis thaliana. Journal of Cell Science. 2018;131(2). doi:10.1242/jcs.204198
Tejos, R., Rodríguez Furlán, C., Adamowski, M., Sauer, M., Norambuena, L., & Friml, J. (2018). PATELLINS are regulators of auxin mediated PIN1 relocation and plant development in Arabidopsis thaliana. Journal of Cell Science, 131(2). https://doi.org/10.1242/jcs.204198
Tejos, Ricardo, Cecilia Rodríguez Furlán, Maciek Adamowski, Michael Sauer, Lorena Norambuena, and Jiří Friml. “PATELLINS Are Regulators of Auxin Mediated PIN1 Relocation and Plant Development in Arabidopsis Thaliana.” Journal of Cell Science 131, no. 2 (2018). https://doi.org/10.1242/jcs.204198.
R. Tejos, C. Rodríguez Furlán, M. Adamowski, M. Sauer, L. Norambuena, and J. Friml, “PATELLINS are regulators of auxin mediated PIN1 relocation and plant development in Arabidopsis thaliana,” Journal of Cell Science, vol. 131, no. 2, 2018.
Tejos R, Rodríguez Furlán C, Adamowski M, Sauer M, Norambuena L, Friml J. 2018. PATELLINS are regulators of auxin mediated PIN1 relocation and plant development in Arabidopsis thaliana. Journal of Cell Science. 131(2).
Tejos, Ricardo, et al. “PATELLINS Are Regulators of Auxin Mediated PIN1 Relocation and Plant Development in Arabidopsis Thaliana.” Journal of Cell Science, vol. 131, no. 2, jcs. 204198, Company of Biologists, 2018, doi:10.1242/jcs.204198.
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