--- _id: '1921' abstract: - lang: eng text: Cell polarity manifested by asymmetric distribution of cargoes, such as receptors and transporters, within the plasma membrane (PM) is crucial for essential functions in multicellular organisms. In plants, cell polarity (re)establishment is intimately linked to patterning processes. Despite the importance of cell polarity, its underlying mechanisms are still largely unknown, including the definition and distinctiveness of the polar domains within the PM. Here, we show in Arabidopsis thaliana that the signaling membrane components, the phosphoinositides phosphatidylinositol 4-phosphate (PtdIns4P) and phosphatidylinositol 4, 5-bisphosphate [PtdIns(4, 5)P2] as well as PtdIns4P 5-kinases mediating their interconversion, are specifically enriched at apical and basal polar plasma membrane domains. The PtdIns4P 5-kinases PIP5K1 and PIP5K2 are redundantly required for polar localization of specifically apical and basal cargoes, such as PIN-FORMED transporters for the plant hormone auxin. As a consequence of the polarity defects, instructive auxin gradients as well as embryonic and postembryonic patterning are severely compromised. Furthermore, auxin itself regulates PIP5K transcription and PtdIns4P and PtdIns(4, 5)P2 levels, in particular their association with polar PM domains. Our results provide insight into the polar domain-delineating mechanisms in plant cells that depend on apical and basal distribution of membrane lipids and are essential for embryonic and postembryonic patterning. acknowledgement: This work was supported by grants from the Odysseus program of the Research Foundation-Flanders (to J.F.). author: - first_name: Ricardo full_name: Tejos, Ricardo last_name: Tejos - first_name: Michael full_name: Sauer, Michael last_name: Sauer - first_name: Steffen full_name: Vanneste, Steffen last_name: Vanneste - first_name: 'MiriamPalacios ' full_name: 'Palacios-Gomez, MiriamPalacios ' last_name: Palacios-Gomez - first_name: Hongjiang full_name: Li, Hongjiang id: 33CA54A6-F248-11E8-B48F-1D18A9856A87 last_name: Li orcid: 0000-0001-5039-9660 - first_name: Mareike full_name: Heilmann, Mareike last_name: Heilmann - first_name: Ringo full_name: Van Wijk, Ringo last_name: Van Wijk - first_name: Joop full_name: Vermeer, Joop last_name: Vermeer - first_name: Ingo full_name: Heilmann, Ingo last_name: Heilmann - first_name: Teun full_name: Munnik, Teun last_name: Munnik - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Tejos R, Sauer M, Vanneste S, et al. Bipolar plasma membrane distribution of phosphoinositides and their requirement for auxin-mediated cell polarity and patterning in Arabidopsis. Plant Cell. 2014;26(5):2114-2128. doi:10.1105/tpc.114.126185 apa: Tejos, R., Sauer, M., Vanneste, S., Palacios-Gomez, M., Li, H., Heilmann, M., … Friml, J. (2014). Bipolar plasma membrane distribution of phosphoinositides and their requirement for auxin-mediated cell polarity and patterning in Arabidopsis. Plant Cell. American Society of Plant Biologists. https://doi.org/10.1105/tpc.114.126185 chicago: Tejos, Ricardo, Michael Sauer, Steffen Vanneste, MiriamPalacios Palacios-Gomez, Hongjiang Li, Mareike Heilmann, Ringo Van Wijk, et al. “Bipolar Plasma Membrane Distribution of Phosphoinositides and Their Requirement for Auxin-Mediated Cell Polarity and Patterning in Arabidopsis.” Plant Cell. American Society of Plant Biologists, 2014. https://doi.org/10.1105/tpc.114.126185. ieee: R. Tejos et al., “Bipolar plasma membrane distribution of phosphoinositides and their requirement for auxin-mediated cell polarity and patterning in Arabidopsis,” Plant Cell, vol. 26, no. 5. American Society of Plant Biologists, pp. 2114–2128, 2014. ista: Tejos R, Sauer M, Vanneste S, Palacios-Gomez M, Li H, Heilmann M, Van Wijk R, Vermeer J, Heilmann I, Munnik T, Friml J. 2014. Bipolar plasma membrane distribution of phosphoinositides and their requirement for auxin-mediated cell polarity and patterning in Arabidopsis. Plant Cell. 26(5), 2114–2128. mla: Tejos, Ricardo, et al. “Bipolar Plasma Membrane Distribution of Phosphoinositides and Their Requirement for Auxin-Mediated Cell Polarity and Patterning in Arabidopsis.” Plant Cell, vol. 26, no. 5, American Society of Plant Biologists, 2014, pp. 2114–28, doi:10.1105/tpc.114.126185. short: R. Tejos, M. Sauer, S. Vanneste, M. Palacios-Gomez, H. Li, M. Heilmann, R. Van Wijk, J. Vermeer, I. Heilmann, T. Munnik, J. Friml, Plant Cell 26 (2014) 2114–2128. date_created: 2018-12-11T11:54:43Z date_published: 2014-05-01T00:00:00Z date_updated: 2021-01-12T06:54:05Z day: '01' department: - _id: JiFr doi: 10.1105/tpc.114.126185 ec_funded: 1 intvolume: ' 26' issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4079372/ month: '05' oa: 1 oa_version: Submitted Version page: 2114 - 2128 project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants publication: Plant Cell publication_status: published publisher: American Society of Plant Biologists publist_id: '5173' scopus_import: 1 status: public title: Bipolar plasma membrane distribution of phosphoinositides and their requirement for auxin-mediated cell polarity and patterning in Arabidopsis type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 26 year: '2014' ...