--- _id: '14339' abstract: - lang: eng text: Lateral roots are typically maintained at non-vertical angles with respect to gravity. These gravitropic setpoint angles are intriguing because their maintenance requires that roots are able to effect growth response both with and against the gravity vector, a phenomenon previously attributed to gravitropism acting against an antigravitropic offset mechanism. Here we show how the components mediating gravitropism in the vertical primary root—PINs and phosphatases acting upon them—are reconfigured in their regulation such that lateral root growth at a range of angles can be maintained. We show that the ability of Arabidopsis lateral roots to bend both downward and upward requires the generation of auxin asymmetries and is driven by angle-dependent variation in downward gravitropic auxin flux acting against angle-independent upward, antigravitropic flux. Further, we demonstrate a symmetry in auxin distribution in lateral roots at gravitropic setpoint angle that can be traced back to a net, balanced polarization of PIN3 and PIN7 auxin transporters in the columella. These auxin fluxes are shifted by altering PIN protein phosphoregulation in the columella, either by introducing PIN3 phosphovariant versions or via manipulation of levels of the phosphatase subunit PP2A/RCN1. Finally, we show that auxin, in addition to driving lateral root directional growth, acts within the lateral root columella to induce more vertical growth by increasing RCN1 levels, causing a downward shift in PIN3 localization, thereby diminishing the magnitude of the upward, antigravitropic auxin flux. acknowledgement: We thank D. Weijers, C. Schwechheimer and R. Offringa for generous sharing of published and unpublished materials and P. Masson for advice on the use of the ARL2 promoter. We are grateful to M. Del Bianco and O. Leyser for critical reading of the manuscript. This work was supported by the BBSRC (grants BB/N010124/1 and BB/R000859/1 to S.K.), the Gatsby Charitable Foundation and the Leverhulme Trust (RPG-2018-137 to S.K.). article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: S full_name: Roychoudhry, S last_name: Roychoudhry - first_name: K full_name: Sageman-Furnas, K last_name: Sageman-Furnas - first_name: C full_name: Wolverton, C last_name: Wolverton - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Shutang full_name: Tan, Shutang id: 2DE75584-F248-11E8-B48F-1D18A9856A87 last_name: Tan orcid: 0000-0002-0471-8285 - first_name: Gergely full_name: Molnar, Gergely id: 34F1AF46-F248-11E8-B48F-1D18A9856A87 last_name: Molnar - first_name: M full_name: De Angelis, M last_name: De Angelis - first_name: HL full_name: Goodman, HL last_name: Goodman - first_name: N full_name: Capstaff, N last_name: Capstaff - first_name: Lloyd full_name: JPB, Lloyd last_name: JPB - first_name: J full_name: Mullen, J last_name: Mullen - first_name: R full_name: Hangarter, R last_name: Hangarter - first_name: Jiří full_name: Friml, Jiří id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: S full_name: Kepinski, S last_name: Kepinski citation: ama: Roychoudhry S, Sageman-Furnas K, Wolverton C, et al. Antigravitropic PIN polarization maintains non-vertical growth in lateral roots. Nature Plants. 2023;9:1500-1513. doi:10.1038/s41477-023-01478-x apa: Roychoudhry, S., Sageman-Furnas, K., Wolverton, C., Grones, P., Tan, S., Molnar, G., … Kepinski, S. (2023). Antigravitropic PIN polarization maintains non-vertical growth in lateral roots. Nature Plants. Springer Nature. https://doi.org/10.1038/s41477-023-01478-x chicago: Roychoudhry, S, K Sageman-Furnas, C Wolverton, Peter Grones, Shutang Tan, Gergely Molnar, M De Angelis, et al. “Antigravitropic PIN Polarization Maintains Non-Vertical Growth in Lateral Roots.” Nature Plants. Springer Nature, 2023. https://doi.org/10.1038/s41477-023-01478-x. ieee: S. Roychoudhry et al., “Antigravitropic PIN polarization maintains non-vertical growth in lateral roots,” Nature Plants, vol. 9. Springer Nature, pp. 1500–1513, 2023. ista: Roychoudhry S, Sageman-Furnas K, Wolverton C, Grones P, Tan S, Molnar G, De Angelis M, Goodman H, Capstaff N, JPB L, Mullen J, Hangarter R, Friml J, Kepinski S. 2023. Antigravitropic PIN polarization maintains non-vertical growth in lateral roots. Nature Plants. 9, 1500–1513. mla: Roychoudhry, S., et al. “Antigravitropic PIN Polarization Maintains Non-Vertical Growth in Lateral Roots.” Nature Plants, vol. 9, Springer Nature, 2023, pp. 1500–13, doi:10.1038/s41477-023-01478-x. short: S. Roychoudhry, K. Sageman-Furnas, C. Wolverton, P. Grones, S. Tan, G. Molnar, M. De Angelis, H. Goodman, N. Capstaff, L. JPB, J. Mullen, R. Hangarter, J. Friml, S. Kepinski, Nature Plants 9 (2023) 1500–1513. date_created: 2023-09-15T09:56:01Z date_published: 2023-09-01T00:00:00Z date_updated: 2023-12-13T12:23:49Z day: '01' ddc: - '580' department: - _id: JiFr doi: 10.1038/s41477-023-01478-x external_id: isi: - '001069238800014' pmid: - '37666965' file: - access_level: open_access checksum: 3d6d5d5abb937c14a5f6f0afba3b8624 content_type: application/pdf creator: dernst date_created: 2023-09-20T10:51:31Z date_updated: 2023-09-20T10:51:31Z file_id: '14351' file_name: 2023_NaturePlants_Roychoudhry.pdf file_size: 9647103 relation: main_file success: 1 file_date_updated: 2023-09-20T10:51:31Z has_accepted_license: '1' intvolume: ' 9' isi: 1 language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '09' oa: 1 oa_version: Published Version page: 1500-1513 pmid: 1 publication: Nature Plants publication_identifier: issn: - 2055-0278 publication_status: published publisher: Springer Nature quality_controlled: '1' status: public title: Antigravitropic PIN polarization maintains non-vertical growth in lateral roots tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9 year: '2023' ... --- _id: '8582' abstract: - lang: eng text: "Cell and tissue polarization is fundamental for plant growth and morphogenesis. The polar, cellular localization of Arabidopsis PIN‐FORMED (PIN) proteins is crucial for their function in directional auxin transport. The clustering of PIN polar cargoes within the plasma membrane has been proposed to be important for the maintenance of their polar distribution. However, the more detailed features of PIN clusters and the cellular requirements of cargo clustering remain unclear.\r\nHere, we characterized PIN clusters in detail by means of multiple advanced microscopy and quantification methods, such as 3D quantitative imaging or freeze‐fracture replica labeling. The size and aggregation types of PIN clusters were determined by electron microscopy at the nanometer level at different polar domains and at different developmental stages, revealing a strong preference for clustering at the polar domains.\r\nPharmacological and genetic studies revealed that PIN clusters depend on phosphoinositol pathways, cytoskeletal structures and specific cell‐wall components as well as connections between the cell wall and the plasma membrane.\r\nThis study identifies the role of different cellular processes and structures in polar cargo clustering and provides initial mechanistic insight into the maintenance of polarity in plants and other systems." acknowledged_ssus: - _id: Bio acknowledgement: We thank Dr Ingo Heilmann (Martin‐Luther‐University Halle‐Wittenberg) for the XVE>>PIP5K1‐YFP line, Dr Brad Day (Michigan State University) for the ndr1‐1 mutant and the complementation lines, and Dr Patricia C. Zambryski (University of California, Berkeley) for the 35S::P30‐GFP line, the Bioimaging team (IST Austria) for assistance with imaging, group members for discussions, Martine De Cock for help in preparing the manuscript and Nataliia Gnyliukh for critical reading and revision of the manuscript. This project received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 742985) and Comisión Nacional de Investigación Científica y Tecnológica (Project CONICYT‐PAI 82130047). DvW received funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007‐2013) under REA grant agreement no. 291734. article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Hongjiang full_name: Li, Hongjiang id: 33CA54A6-F248-11E8-B48F-1D18A9856A87 last_name: Li orcid: 0000-0001-5039-9660 - first_name: Daniel full_name: von Wangenheim, Daniel id: 49E91952-F248-11E8-B48F-1D18A9856A87 last_name: von Wangenheim orcid: 0000-0002-6862-1247 - first_name: Xixi full_name: Zhang, Xixi id: 61A66458-47E9-11EA-85BA-8AEAAF14E49A last_name: Zhang orcid: 0000-0001-7048-4627 - first_name: Shutang full_name: Tan, Shutang id: 2DE75584-F248-11E8-B48F-1D18A9856A87 last_name: Tan orcid: 0000-0002-0471-8285 - first_name: Nasser full_name: Darwish-Miranda, Nasser id: 39CD9926-F248-11E8-B48F-1D18A9856A87 last_name: Darwish-Miranda orcid: 0000-0002-8821-8236 - first_name: Satoshi full_name: Naramoto, Satoshi last_name: Naramoto - first_name: Krzysztof T full_name: Wabnik, Krzysztof T id: 4DE369A4-F248-11E8-B48F-1D18A9856A87 last_name: Wabnik orcid: 0000-0001-7263-0560 - first_name: Riet full_name: de Rycke, Riet last_name: de Rycke - first_name: Walter full_name: Kaufmann, Walter id: 3F99E422-F248-11E8-B48F-1D18A9856A87 last_name: Kaufmann orcid: 0000-0001-9735-5315 - first_name: Daniel J full_name: Gütl, Daniel J id: 381929CE-F248-11E8-B48F-1D18A9856A87 last_name: Gütl - first_name: Ricardo full_name: Tejos, Ricardo last_name: Tejos - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Meiyu full_name: Ke, Meiyu last_name: Ke - first_name: Xu full_name: Chen, Xu id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87 last_name: Chen - first_name: Jan full_name: Dettmer, Jan last_name: Dettmer - first_name: Jiří full_name: Friml, Jiří id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Li H, von Wangenheim D, Zhang X, et al. Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana. New Phytologist. 2021;229(1):351-369. doi:10.1111/nph.16887 apa: Li, H., von Wangenheim, D., Zhang, X., Tan, S., Darwish-Miranda, N., Naramoto, S., … Friml, J. (2021). Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana. New Phytologist. Wiley. https://doi.org/10.1111/nph.16887 chicago: Li, Hongjiang, Daniel von Wangenheim, Xixi Zhang, Shutang Tan, Nasser Darwish-Miranda, Satoshi Naramoto, Krzysztof T Wabnik, et al. “Cellular Requirements for PIN Polar Cargo Clustering in Arabidopsis Thaliana.” New Phytologist. Wiley, 2021. https://doi.org/10.1111/nph.16887. ieee: H. Li et al., “Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana,” New Phytologist, vol. 229, no. 1. Wiley, pp. 351–369, 2021. ista: Li H, von Wangenheim D, Zhang X, Tan S, Darwish-Miranda N, Naramoto S, Wabnik KT, de Rycke R, Kaufmann W, Gütl DJ, Tejos R, Grones P, Ke M, Chen X, Dettmer J, Friml J. 2021. Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana. New Phytologist. 229(1), 351–369. mla: Li, Hongjiang, et al. “Cellular Requirements for PIN Polar Cargo Clustering in Arabidopsis Thaliana.” New Phytologist, vol. 229, no. 1, Wiley, 2021, pp. 351–69, doi:10.1111/nph.16887. short: H. Li, D. von Wangenheim, X. Zhang, S. Tan, N. Darwish-Miranda, S. Naramoto, K.T. Wabnik, R. de Rycke, W. Kaufmann, D.J. Gütl, R. Tejos, P. Grones, M. Ke, X. Chen, J. Dettmer, J. Friml, New Phytologist 229 (2021) 351–369. date_created: 2020-09-28T08:59:28Z date_published: 2021-01-01T00:00:00Z date_updated: 2023-08-04T11:01:21Z day: '01' ddc: - '580' department: - _id: JiFr - _id: EM-Fac - _id: Bio - _id: EvBe doi: 10.1111/nph.16887 ec_funded: 1 external_id: isi: - '000570187900001' file: - access_level: open_access checksum: b45621607b4cab97eeb1605ab58e896e content_type: application/pdf creator: dernst date_created: 2021-02-04T09:44:17Z date_updated: 2021-02-04T09:44:17Z file_id: '9084' file_name: 2021_NewPhytologist_Li.pdf file_size: 4061962 relation: main_file success: 1 file_date_updated: 2021-02-04T09:44:17Z has_accepted_license: '1' intvolume: ' 229' isi: 1 issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version page: 351-369 project: - _id: 261099A6-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742985' name: Tracing Evolution of Auxin Transport and Polarity in Plants - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: New Phytologist publication_identifier: eissn: - '14698137' issn: - 0028646X publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Cellular requirements for PIN polar cargo clustering in Arabidopsis thaliana tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 229 year: '2021' ... --- _id: '147' abstract: - lang: eng text: The trafficking of subcellular cargos in eukaryotic cells crucially depends on vesicle budding, a process mediated by ARF-GEFs (ADP-ribosylation factor guanine nucleotide exchange factors). In plants, ARF-GEFs play essential roles in endocytosis, vacuolar trafficking, recycling, secretion, and polar trafficking. Moreover, they are important for plant development, mainly through controlling the polar subcellular localization of PIN-FORMED (PIN) transporters of the plant hormone auxin. Here, using a chemical genetics screen in Arabidopsis thaliana, we identified Endosidin 4 (ES4), an inhibitor of eukaryotic ARF-GEFs. ES4 acts similarly to and synergistically with the established ARF-GEF inhibitor Brefeldin A and has broad effects on intracellular trafficking, including endocytosis, exocytosis, and vacuolar targeting. Additionally, Arabidopsis and yeast (Sacharomyces cerevisiae) mutants defective in ARF-GEF show altered sensitivity to ES4. ES4 interferes with the activation-based membrane association of the ARF1 GTPases, but not of their mutant variants that are activated independently of ARF-GEF activity. Biochemical approaches and docking simulations confirmed that ES4 specifically targets the SEC7 domain-containing ARF-GEFs. These observations collectively identify ES4 as a chemical tool enabling the study of ARF-GEF-mediated processes, including ARF-GEF-mediated plant development. acknowledgement: We thank Gerd Jürgens, Sandra Richter, and Sheng Yang He for providing antibodies; Maciek Adamowski, Fernando Aniento, Sebastian Bednarek, Nico Callewaert, Matyás Fendrych, Elena Feraru, and Mugurel I. Feraru for helpful suggestions; Siamsa Doyle for critical reading of the manuscript and helpful comments and suggestions; and Stephanie Smith and Martine De Cock for help in editing and language corrections. We acknowledge the core facility Cellular Imaging of CEITEC supported by the Czech-BioImaging large RI project (LM2015062 funded by MEYS CR) for their support with obtaining scientific data presented in this article. Plant Sciences Core Facility of CEITEC Masaryk University is gratefully acknowledged for obtaining part of the scientific data presented in this article. We acknowledge support from the Fondation pour la Recherche Médicale and from the Institut National du Cancer (J.C.). The research leading to these results was funded by the European Research Council under the European Union's 7th Framework Program (FP7/2007-2013)/ERC grant agreement numbers 282300 and 742985 and the Czech Science Foundation GAČR (GA18-26981S; J.F.); Ministry of Education, Youth, and Sports/MEYS of the Czech Republic under the Project CEITEC 2020 (LQ1601; T.N.); the China Science Council for a predoctoral fellowship (Q.L.); a joint research project within the framework of cooperation between the Research Foundation-Flanders and the Bulgarian Academy of Sciences (VS.025.13N; K.M. and E.R.); Vetenskapsrådet and Vinnova (Verket för Innovationssystem; S.R.), Knut och Alice Wallenbergs Stiftelse via “Shapesystem” Grant 2012.0050 (S.R.), Kempe stiftelserna (P.G.), Tryggers CTS410 (P.G.). article_processing_charge: No article_type: original author: - first_name: Urszula full_name: Kania, Urszula id: 4AE5C486-F248-11E8-B48F-1D18A9856A87 last_name: Kania - first_name: Tomasz full_name: Nodzyński, Tomasz last_name: Nodzyński - first_name: Qing full_name: Lu, Qing last_name: Lu - first_name: Glenn R full_name: Hicks, Glenn R last_name: Hicks - first_name: Wim full_name: Nerinckx, Wim last_name: Nerinckx - first_name: Kiril full_name: Mishev, Kiril last_name: Mishev - first_name: Francois full_name: Peurois, Francois last_name: Peurois - first_name: Jacqueline full_name: Cherfils, Jacqueline last_name: Cherfils - first_name: Rycke Riet Maria full_name: De, Rycke Riet Maria last_name: De - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Stéphanie full_name: Robert, Stéphanie last_name: Robert - first_name: Eugenia full_name: Russinova, Eugenia last_name: Russinova - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Kania U, Nodzyński T, Lu Q, et al. The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes. The Plant Cell. 2018;30(10):2553-2572. doi:10.1105/tpc.18.00127 apa: Kania, U., Nodzyński, T., Lu, Q., Hicks, G. R., Nerinckx, W., Mishev, K., … Friml, J. (2018). The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes. The Plant Cell. Oxford University Press. https://doi.org/10.1105/tpc.18.00127 chicago: Kania, Urszula, Tomasz Nodzyński, Qing Lu, Glenn R Hicks, Wim Nerinckx, Kiril Mishev, Francois Peurois, et al. “The Inhibitor Endosidin 4 Targets SEC7 Domain-Type ARF GTPase Exchange Factors and Interferes with Sub Cellular Trafficking in Eukaryotes.” The Plant Cell. Oxford University Press, 2018. https://doi.org/10.1105/tpc.18.00127. ieee: U. Kania et al., “The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes,” The Plant Cell, vol. 30, no. 10. Oxford University Press, pp. 2553–2572, 2018. ista: Kania U, Nodzyński T, Lu Q, Hicks GR, Nerinckx W, Mishev K, Peurois F, Cherfils J, De RRM, Grones P, Robert S, Russinova E, Friml J. 2018. The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes. The Plant Cell. 30(10), 2553–2572. mla: Kania, Urszula, et al. “The Inhibitor Endosidin 4 Targets SEC7 Domain-Type ARF GTPase Exchange Factors and Interferes with Sub Cellular Trafficking in Eukaryotes.” The Plant Cell, vol. 30, no. 10, Oxford University Press, 2018, pp. 2553–72, doi:10.1105/tpc.18.00127. short: U. Kania, T. Nodzyński, Q. Lu, G.R. Hicks, W. Nerinckx, K. Mishev, F. Peurois, J. Cherfils, R.R.M. De, P. Grones, S. Robert, E. Russinova, J. Friml, The Plant Cell 30 (2018) 2553–2572. date_created: 2018-12-11T11:44:52Z date_published: 2018-11-12T00:00:00Z date_updated: 2023-09-19T10:09:12Z day: '12' department: - _id: JiFr doi: 10.1105/tpc.18.00127 ec_funded: 1 external_id: isi: - '000450000500023' pmid: - '30018156' intvolume: ' 30' isi: 1 issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1105/tpc.18.00127 month: '11' oa: 1 oa_version: Published Version page: 2553 - 2572 pmid: 1 project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants - _id: 261099A6-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742985' name: Tracing Evolution of Auxin Transport and Polarity in Plants publication: The Plant Cell publication_identifier: issn: - 1040-4651 publication_status: published publisher: Oxford University Press publist_id: '7776' quality_controlled: '1' scopus_import: '1' status: public title: The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 30 year: '2018' ... --- _id: '191' abstract: - lang: eng text: Intercellular distribution of the plant hormone auxin largely depends on the polar subcellular distribution of the plasma membrane PIN-FORMED (PIN) auxin transporters. PIN polarity switches in response to different developmental and environmental signals have been shown to redirect auxin fluxes mediating certain developmental responses. PIN phosphorylation at different sites and by different kinases is crucial for PIN function. Here we investigate the role of PIN phosphorylation during gravitropic response. Loss- and gain-of-function mutants in PINOID and related kinases but not in D6PK kinase as well as mutations mimicking constitutive dephosphorylated or phosphorylated status of two clusters of predicted phosphorylation sites partially disrupted PIN3 phosphorylation and caused defects in gravitropic bending in roots and hypocotyls. In particular, they impacted PIN3 polarity rearrangements in response to gravity and during feed-back regulation by auxin itself. Thus PIN phosphorylation, besides regulating transport activity and apical-basal targeting, is also important for the rapid polarity switches in response to environmental and endogenous signals. article_number: '10279' article_processing_charge: No author: - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Melinda F full_name: Abas, Melinda F id: 3CFB3B1C-F248-11E8-B48F-1D18A9856A87 last_name: Abas - first_name: Jakub full_name: Hajny, Jakub id: 4800CC20-F248-11E8-B48F-1D18A9856A87 last_name: Hajny orcid: 0000-0003-2140-7195 - first_name: Angharad full_name: Jones, Angharad last_name: Jones - first_name: Sascha full_name: Waidmann, Sascha last_name: Waidmann - first_name: Jürgen full_name: Kleine Vehn, Jürgen last_name: Kleine Vehn - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Grones P, Abas MF, Hajny J, et al. PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. Scientific Reports. 2018;8(1). doi:10.1038/s41598-018-28188-1 apa: Grones, P., Abas, M. F., Hajny, J., Jones, A., Waidmann, S., Kleine Vehn, J., & Friml, J. (2018). PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. Scientific Reports. Springer. https://doi.org/10.1038/s41598-018-28188-1 chicago: Grones, Peter, Melinda F Abas, Jakub Hajny, Angharad Jones, Sascha Waidmann, Jürgen Kleine Vehn, and Jiří Friml. “PID/WAG-Mediated Phosphorylation of the Arabidopsis PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” Scientific Reports. Springer, 2018. https://doi.org/10.1038/s41598-018-28188-1. ieee: P. Grones et al., “PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism,” Scientific Reports, vol. 8, no. 1. Springer, 2018. ista: Grones P, Abas MF, Hajny J, Jones A, Waidmann S, Kleine Vehn J, Friml J. 2018. PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism. Scientific Reports. 8(1), 10279. mla: Grones, Peter, et al. “PID/WAG-Mediated Phosphorylation of the Arabidopsis PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” Scientific Reports, vol. 8, no. 1, 10279, Springer, 2018, doi:10.1038/s41598-018-28188-1. short: P. Grones, M.F. Abas, J. Hajny, A. Jones, S. Waidmann, J. Kleine Vehn, J. Friml, Scientific Reports 8 (2018). date_created: 2018-12-11T11:45:06Z date_published: 2018-07-06T00:00:00Z date_updated: 2024-03-28T23:30:38Z day: '06' ddc: - '581' department: - _id: JiFr - _id: EvBe doi: 10.1038/s41598-018-28188-1 ec_funded: 1 external_id: isi: - '000437673200053' file: - access_level: open_access checksum: 266b03f4fb8198e83141617aaa99dcab content_type: application/pdf creator: dernst date_created: 2018-12-17T15:38:56Z date_updated: 2020-07-14T12:45:20Z file_id: '5714' file_name: 2018_ScientificReports_Grones.pdf file_size: 2413876 relation: main_file file_date_updated: 2020-07-14T12:45:20Z has_accepted_license: '1' intvolume: ' 8' isi: 1 issue: '1' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants - _id: 261099A6-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742985' name: Tracing Evolution of Auxin Transport and Polarity in Plants publication: Scientific Reports publication_status: published publisher: Springer publist_id: '7729' quality_controlled: '1' related_material: record: - id: '8822' relation: dissertation_contains status: public scopus_import: '1' status: public title: PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 8 year: '2018' ... --- _id: '1372' abstract: - lang: eng text: Redirection of intercellular auxin fluxes via relocalization of the PIN-FORMED 3 (PIN3) and PIN7 auxin efflux carriers has been suggested to be necessary for the root gravitropic response. Cytokinins have also been proposed to play a role in controlling root gravitropism, but conclusive evidence is lacking. We present a detailed study of the dynamics of root bending early after gravistimulation, which revealed a delayed gravitropic response in transgenic lines with depleted endogenous cytokinins (Pro35S:AtCKX) and cytokinin signaling mutants. Pro35S:AtCKX lines, as well as a cytokinin receptor mutant ahk3, showed aberrations in the auxin response distribution in columella cells consistent with defects in the auxin transport machinery. Using in vivo real-time imaging of PIN3-GFP and PIN7-GFP in AtCKX3 overexpression and ahk3 backgrounds, we observed wild-type-like relocalization of PIN proteins in the columella early after gravistimulation, with gravity-induced relocalization of PIN7 faster than that of PIN3. Nonetheless, the cellular distribution of PIN3 and PIN7 and expression of PIN7 and the auxin influx carrier AUX1 was affected in AtCKX overexpression lines. Based on the retained cytokinin sensitivity in pin3 pin4 pin7 mutant, we propose the AUX1-mediated auxin transport rather than columella-located PIN proteins as a target of endogenous cytokinins in the control of root gravitropism. acknowledgement: 'Funded by Ministry of Education, Youth and Sports Czech Republic. Grant Numbers: CEITEC 2020, LQ1601, LO1204, LH14104 and The European Research Council. Grant Number: ERC-2011-StG-20101109-PSDP and The Czech Science Foundation. Grant Numbers: GAP501/11/1150, GA13-40637S, GP14-30004P' author: - first_name: Markéta full_name: Pernisová, Markéta last_name: Pernisová - first_name: Tomas full_name: Prat, Tomas id: 3DA3BFEE-F248-11E8-B48F-1D18A9856A87 last_name: Prat - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Danka full_name: Haruštiaková, Danka last_name: Haruštiaková - first_name: Martina full_name: Matonohova, Martina last_name: Matonohova - first_name: Lukáš full_name: Spíchal, Lukáš last_name: Spíchal - first_name: Tomasz full_name: Nodzyński, Tomasz last_name: Nodzyński - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: Jan full_name: Hejátko, Jan last_name: Hejátko citation: ama: Pernisová M, Prat T, Grones P, et al. Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis. New Phytologist. 2016;212(2):497-509. doi:10.1111/nph.14049 apa: Pernisová, M., Prat, T., Grones, P., Haruštiaková, D., Matonohova, M., Spíchal, L., … Hejátko, J. (2016). Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis. New Phytologist. Wiley-Blackwell. https://doi.org/10.1111/nph.14049 chicago: Pernisová, Markéta, Tomas Prat, Peter Grones, Danka Haruštiaková, Martina Matonohova, Lukáš Spíchal, Tomasz Nodzyński, Jiří Friml, and Jan Hejátko. “Cytokinins Influence Root Gravitropism via Differential Regulation of Auxin Transporter Expression and Localization in Arabidopsis.” New Phytologist. Wiley-Blackwell, 2016. https://doi.org/10.1111/nph.14049. ieee: M. Pernisová et al., “Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis,” New Phytologist, vol. 212, no. 2. Wiley-Blackwell, pp. 497–509, 2016. ista: Pernisová M, Prat T, Grones P, Haruštiaková D, Matonohova M, Spíchal L, Nodzyński T, Friml J, Hejátko J. 2016. Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis. New Phytologist. 212(2), 497–509. mla: Pernisová, Markéta, et al. “Cytokinins Influence Root Gravitropism via Differential Regulation of Auxin Transporter Expression and Localization in Arabidopsis.” New Phytologist, vol. 212, no. 2, Wiley-Blackwell, 2016, pp. 497–509, doi:10.1111/nph.14049. short: M. Pernisová, T. Prat, P. Grones, D. Haruštiaková, M. Matonohova, L. Spíchal, T. Nodzyński, J. Friml, J. Hejátko, New Phytologist 212 (2016) 497–509. date_created: 2018-12-11T11:51:38Z date_published: 2016-10-01T00:00:00Z date_updated: 2021-01-12T06:50:13Z day: '01' ddc: - '581' department: - _id: JiFr doi: 10.1111/nph.14049 file: - access_level: open_access checksum: 27fd841ceaf0403559d7048ef51500f9 content_type: application/pdf creator: system date_created: 2018-12-12T10:14:53Z date_updated: 2020-07-14T12:44:47Z file_id: '5108' file_name: IST-2018-1006-v1+1_Pernisova_NewPhytol_2016_peer_review.pdf file_size: 972763 relation: main_file file_date_updated: 2020-07-14T12:44:47Z has_accepted_license: '1' intvolume: ' 212' issue: '2' language: - iso: eng month: '10' oa: 1 oa_version: Submitted Version page: 497 - 509 publication: New Phytologist publication_status: published publisher: Wiley-Blackwell publist_id: '5839' pubrep_id: '1006' quality_controlled: '1' scopus_import: 1 status: public title: Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 212 year: '2016' ... --- _id: '1562' abstract: - lang: eng text: The plant hormone auxin is a key regulator of plant growth and development. Auxin levels are sensed and interpreted by distinct receptor systems that activate a broad range of cellular responses. The Auxin-Binding Protein1 (ABP1) that has been identified based on its ability to bind auxin with high affinity is a prime candidate for the extracellular receptor responsible for mediating a range of auxin effects, in particular, the fast non-transcriptional ones. Contradictory genetic studies suggested prominent or no importance of ABP1 in many developmental processes. However, how crucial the role of auxin binding to ABP1 is for its functions has not been addressed. Here, we show that the auxin-binding pocket of ABP1 is essential for its gain-of-function cellular and developmental roles. In total, 16 different abp1 mutants were prepared that possessed substitutions in the metal core or in the hydrophobic amino acids of the auxin-binding pocket as well as neutral mutations. Their analysis revealed that an intact auxin-binding pocket is a prerequisite for ABP1 to activate downstream components of the ABP1 signalling pathway, such as Rho of Plants (ROPs) and to mediate the clathrin association with membranes for endocytosis regulation. In planta analyses demonstrated the importance of the auxin binding pocket for all known ABP1-mediated postembryonic developmental processes, including morphology of leaf epidermal cells, root growth and root meristem activity, and vascular tissue differentiation. Taken together, these findings suggest that auxin binding to ABP1 is central to its function, supporting the role of ABP1 as auxin receptor. acknowledgement: This work was supported by ERC Independent Research grant (ERC-2011-StG- 20101109-PSDP to JF); the European Social Fund and the state budget of the Czech Republic [the project ‘Employment of Newly Graduated Doctors of Science for Scientific Excellence’ (CZ.1.07/2.3.00/30.0009) to TN]; the Czech Science Foundation (GACR) [project 13-40637S to JF]. article_type: original author: - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Xu full_name: Chen, Xu id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87 last_name: Chen - first_name: Sibu full_name: Simon, Sibu id: 4542EF9A-F248-11E8-B48F-1D18A9856A87 last_name: Simon orcid: 0000-0002-1998-6741 - first_name: Walter full_name: Kaufmann, Walter id: 3F99E422-F248-11E8-B48F-1D18A9856A87 last_name: Kaufmann orcid: 0000-0001-9735-5315 - first_name: Riet full_name: De Rycke, Riet last_name: De Rycke - first_name: Tomasz full_name: Nodzyński, Tomasz last_name: Nodzyński - first_name: Eva full_name: Zažímalová, Eva last_name: Zažímalová - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Grones P, Chen X, Simon S, et al. Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles. Journal of Experimental Botany. 2015;66(16):5055-5065. doi:10.1093/jxb/erv177 apa: Grones, P., Chen, X., Simon, S., Kaufmann, W., De Rycke, R., Nodzyński, T., … Friml, J. (2015). Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles. Journal of Experimental Botany. Oxford University Press. https://doi.org/10.1093/jxb/erv177 chicago: Grones, Peter, Xu Chen, Sibu Simon, Walter Kaufmann, Riet De Rycke, Tomasz Nodzyński, Eva Zažímalová, and Jiří Friml. “Auxin-Binding Pocket of ABP1 Is Crucial for Its Gain-of-Function Cellular and Developmental Roles.” Journal of Experimental Botany. Oxford University Press, 2015. https://doi.org/10.1093/jxb/erv177. ieee: P. Grones et al., “Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles,” Journal of Experimental Botany, vol. 66, no. 16. Oxford University Press, pp. 5055–5065, 2015. ista: Grones P, Chen X, Simon S, Kaufmann W, De Rycke R, Nodzyński T, Zažímalová E, Friml J. 2015. Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles. Journal of Experimental Botany. 66(16), 5055–5065. mla: Grones, Peter, et al. “Auxin-Binding Pocket of ABP1 Is Crucial for Its Gain-of-Function Cellular and Developmental Roles.” Journal of Experimental Botany, vol. 66, no. 16, Oxford University Press, 2015, pp. 5055–65, doi:10.1093/jxb/erv177. short: P. Grones, X. Chen, S. Simon, W. Kaufmann, R. De Rycke, T. Nodzyński, E. Zažímalová, J. Friml, Journal of Experimental Botany 66 (2015) 5055–5065. date_created: 2018-12-11T11:52:44Z date_published: 2015-08-01T00:00:00Z date_updated: 2023-02-23T10:04:26Z day: '01' department: - _id: JiFr - _id: EM-Fac doi: 10.1093/jxb/erv177 ec_funded: 1 intvolume: ' 66' issue: '16' language: - iso: eng month: '08' oa_version: None page: 5055 - 5065 project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants publication: Journal of Experimental Botany publication_status: published publisher: Oxford University Press publist_id: '5609' quality_controlled: '1' scopus_import: 1 status: public title: Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and developmental roles type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 66 year: '2015' ... --- _id: '1847' acknowledgement: This work was supported by the European Research Council (project ERC-2011-StG-20101109-PSDP), European Social Fund (CZ.1.07/2.3.00/20.0043), and the Czech Science Foundation GAČR (GA13-40637S). author: - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Jiřĺ full_name: Friml, Jiřĺ id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: 'Grones P, Friml J. ABP1: Finally docking. Molecular Plant. 2015;8(3):356-358. doi:10.1016/j.molp.2014.12.013' apa: 'Grones, P., & Friml, J. (2015). ABP1: Finally docking. Molecular Plant. Elsevier. https://doi.org/10.1016/j.molp.2014.12.013' chicago: 'Grones, Peter, and Jiří Friml. “ABP1: Finally Docking.” Molecular Plant. Elsevier, 2015. https://doi.org/10.1016/j.molp.2014.12.013.' ieee: 'P. Grones and J. Friml, “ABP1: Finally docking,” Molecular Plant, vol. 8, no. 3. Elsevier, pp. 356–358, 2015.' ista: 'Grones P, Friml J. 2015. ABP1: Finally docking. Molecular Plant. 8(3), 356–358.' mla: 'Grones, Peter, and Jiří Friml. “ABP1: Finally Docking.” Molecular Plant, vol. 8, no. 3, Elsevier, 2015, pp. 356–58, doi:10.1016/j.molp.2014.12.013.' short: P. Grones, J. Friml, Molecular Plant 8 (2015) 356–358. date_created: 2018-12-11T11:54:20Z date_published: 2015-03-02T00:00:00Z date_updated: 2021-01-12T06:53:35Z day: '02' department: - _id: JiFr doi: 10.1016/j.molp.2014.12.013 intvolume: ' 8' issue: '3' language: - iso: eng month: '03' oa_version: None page: 356 - 358 publication: Molecular Plant publication_status: published publisher: Elsevier publist_id: '5254' quality_controlled: '1' scopus_import: 1 status: public title: 'ABP1: Finally docking' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2015' ... --- _id: '1871' abstract: - lang: eng text: The plant hormone auxin is a key regulator of plant growth and development. Differences in auxin distribution within tissues are mediated by the polar auxin transport machinery, and cellular auxin responses occur depending on changes in cellular auxin levels. Multiple receptor systems at the cell surface and in the interior operate to sense and interpret fluctuations in auxin distribution that occur during plant development. Until now, three proteins or protein complexes that can bind auxin have been identified. SCFTIR1 [a SKP1-cullin-1-F-box complex that contains transport inhibitor response 1 (TIR1) as the F-box protein] and S-phase-kinaseassociated protein 2 (SKP2) localize to the nucleus, whereas auxinbinding protein 1 (ABP1), predominantly associates with the endoplasmic reticulum and cell surface. In this Cell Science at a Glance article, we summarize recent discoveries in the field of auxin transport and signaling that have led to the identification of new components of these pathways, as well as their mutual interaction. acknowledgement: This work was supported by the European Research Council [project ERC-2011-StG-20101109-PSDP]; European Social Fund [grant number CZ.1.07/2.3.00/20.0043] and the Czech Science Foundation GAČR [grant number GA13-40637S] author: - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Grones P, Friml J. Auxin transporters and binding proteins at a glance. Journal of Cell Science. 2015;128(1):1-7. doi:10.1242/jcs.159418 apa: Grones, P., & Friml, J. (2015). Auxin transporters and binding proteins at a glance. Journal of Cell Science. Company of Biologists. https://doi.org/10.1242/jcs.159418 chicago: Grones, Peter, and Jiří Friml. “Auxin Transporters and Binding Proteins at a Glance.” Journal of Cell Science. Company of Biologists, 2015. https://doi.org/10.1242/jcs.159418. ieee: P. Grones and J. Friml, “Auxin transporters and binding proteins at a glance,” Journal of Cell Science, vol. 128, no. 1. Company of Biologists, pp. 1–7, 2015. ista: Grones P, Friml J. 2015. Auxin transporters and binding proteins at a glance. Journal of Cell Science. 128(1), 1–7. mla: Grones, Peter, and Jiří Friml. “Auxin Transporters and Binding Proteins at a Glance.” Journal of Cell Science, vol. 128, no. 1, Company of Biologists, 2015, pp. 1–7, doi:10.1242/jcs.159418. short: P. Grones, J. Friml, Journal of Cell Science 128 (2015) 1–7. date_created: 2018-12-11T11:54:28Z date_published: 2015-01-01T00:00:00Z date_updated: 2021-01-12T06:53:45Z day: '01' ddc: - '570' department: - _id: JiFr doi: 10.1242/jcs.159418 file: - access_level: open_access checksum: 24c779f4cd9d549ca6833e26f486be27 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:00Z date_updated: 2020-07-14T12:45:19Z file_id: '4852' file_name: IST-2016-563-v1+1_1.full.pdf file_size: 1688844 relation: main_file file_date_updated: 2020-07-14T12:45:19Z has_accepted_license: '1' intvolume: ' 128' issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Submitted Version page: 1 - 7 publication: Journal of Cell Science publication_status: published publisher: Company of Biologists publist_id: '5225' pubrep_id: '563' quality_controlled: '1' scopus_import: 1 status: public title: Auxin transporters and binding proteins at a glance type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 128 year: '2015' ... --- _id: '1893' abstract: - lang: eng text: Phosphatidylinositol (PtdIns) is a structural phospholipid that can be phosphorylated into various lipid signaling molecules, designated polyphosphoinositides (PPIs). The reversible phosphorylation of PPIs on the 3, 4, or 5 position of inositol is performed by a set of organelle-specific kinases and phosphatases, and the characteristic head groups make these molecules ideal for regulating biological processes in time and space. In yeast and mammals, PtdIns3P and PtdIns(3,5)P2 play crucial roles in trafficking toward the lytic compartments, whereas the role in plants is not yet fully understood. Here we identified the role of a land plant-specific subgroup of PPI phosphatases, the suppressor of actin 2 (SAC2) to SAC5, during vacuolar trafficking and morphogenesis in Arabidopsis thaliana. SAC2-SAC5 localize to the tonoplast along with PtdIns3P, the presumable product of their activity. In SAC gain- and loss-of-function mutants, the levels of PtdIns monophosphates and bisphosphates were changed, with opposite effects on the morphology of storage and lytic vacuoles, and the trafficking toward the vacuoles was defective. Moreover, multiple sac knockout mutants had an increased number of smaller storage and lytic vacuoles, whereas extralarge vacuoles were observed in the overexpression lines, correlating with various growth and developmental defects. The fragmented vacuolar phenotype of sac mutants could be mimicked by treating wild-type seedlings with PtdIns(3,5)P2, corroborating that this PPI is important for vacuole morphology. Taken together, these results provide evidence that PPIs, together with their metabolic enzymes SAC2-SAC5, are crucial for vacuolar trafficking and for vacuolar morphology and function in plants. acknowledgement: This work was supported by grants from the Research Foundation-Flanders (Odysseus). author: - first_name: Petra full_name: Nováková, Petra id: 44E59624-F248-11E8-B48F-1D18A9856A87 last_name: Nováková - first_name: Sibylle full_name: Hirsch, Sibylle last_name: Hirsch - first_name: Elena full_name: Feraru, Elena last_name: Feraru - first_name: Ricardo full_name: Tejos, Ricardo last_name: Tejos - first_name: Ringo full_name: Van Wijk, Ringo last_name: Van Wijk - first_name: Tom full_name: Viaene, Tom last_name: Viaene - first_name: Mareike full_name: Heilmann, Mareike last_name: Heilmann - first_name: Jennifer full_name: Lerche, Jennifer last_name: Lerche - first_name: Riet full_name: De Rycke, Riet last_name: De Rycke - first_name: Mugurel full_name: Feraru, Mugurel last_name: Feraru - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Marc full_name: Van Montagu, Marc last_name: Van Montagu - 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: Marhavá P, Hirsch S, Feraru E, et al. SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function in Arabidopsis. PNAS. 2014;111(7):2818-2823. doi:10.1073/pnas.1324264111 apa: Marhavá, P., Hirsch, S., Feraru, E., Tejos, R., Van Wijk, R., Viaene, T., … Friml, J. (2014). SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function in Arabidopsis. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1324264111 chicago: Marhavá, Petra, Sibylle Hirsch, Elena Feraru, Ricardo Tejos, Ringo Van Wijk, Tom Viaene, Mareike Heilmann, et al. “SAC Phosphoinositide Phosphatases at the Tonoplast Mediate Vacuolar Function in Arabidopsis.” PNAS. National Academy of Sciences, 2014. https://doi.org/10.1073/pnas.1324264111. ieee: P. Marhavá et al., “SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function in Arabidopsis,” PNAS, vol. 111, no. 7. National Academy of Sciences, pp. 2818–2823, 2014. ista: Marhavá P, Hirsch S, Feraru E, Tejos R, Van Wijk R, Viaene T, Heilmann M, Lerche J, De Rycke R, Feraru M, Grones P, Van Montagu M, Heilmann I, Munnik T, Friml J. 2014. SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function in Arabidopsis. PNAS. 111(7), 2818–2823. mla: Marhavá, Petra, et al. “SAC Phosphoinositide Phosphatases at the Tonoplast Mediate Vacuolar Function in Arabidopsis.” PNAS, vol. 111, no. 7, National Academy of Sciences, 2014, pp. 2818–23, doi:10.1073/pnas.1324264111. short: P. Marhavá, S. Hirsch, E. Feraru, R. Tejos, R. Van Wijk, T. Viaene, M. Heilmann, J. Lerche, R. De Rycke, M. Feraru, P. Grones, M. Van Montagu, I. Heilmann, T. Munnik, J. Friml, PNAS 111 (2014) 2818–2823. date_created: 2018-12-11T11:54:34Z date_published: 2014-02-18T00:00:00Z date_updated: 2021-01-12T06:53:53Z day: '18' department: - _id: JiFr doi: 10.1073/pnas.1324264111 ec_funded: 1 intvolume: ' 111' issue: '7' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3932866/ month: '02' oa: 1 oa_version: Submitted Version page: 2818 - 2823 project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants publication: PNAS publication_status: published publisher: National Academy of Sciences publist_id: '5202' scopus_import: 1 status: public title: SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function in Arabidopsis type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 111 year: '2014' ... --- _id: '528' abstract: - lang: eng text: Establishment of the embryonic axis foreshadows the main body axis of adults both in plants and in animals, but underlying mechanisms are considered distinct. Plants utilize directional, cell-to-cell transport of the growth hormone auxin [1, 2] to generate an asymmetric auxin response that specifies the embryonic apical-basal axis [3-6]. The auxin flow directionality depends on the polarized subcellular localization of PIN-FORMED (PIN) auxin transporters [7, 8]. It remains unknown which mechanisms and spatial cues guide cell polarization and axis orientation in early embryos. Herein, we provide conceptually novel insights into the formation of embryonic axis in Arabidopsis by identifying a crucial role of localized tryptophan-dependent auxin biosynthesis [9-12]. Local auxin production at the base of young embryos and the accompanying PIN7-mediated auxin flow toward the proembryo are required for the apical auxin response maximum and the specification of apical embryonic structures. Later in embryogenesis, the precisely timed onset of localized apical auxin biosynthesis mediates PIN1 polarization, basal auxin response maximum, and specification of the root pole. Thus, the tight spatiotemporal control of distinct local auxin sources provides a necessary, non-cell-autonomous trigger for the coordinated cell polarization and subsequent apical-basal axis orientation during embryogenesis and, presumably, also for other polarization events during postembryonic plant life [13, 14]. author: - first_name: Hélène full_name: Robert, Hélène last_name: Robert - first_name: Peter full_name: Grones, Peter id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Anna full_name: Stepanova, Anna last_name: Stepanova - first_name: Linda full_name: Robles, Linda last_name: Robles - first_name: Annemarie full_name: Lokerse, Annemarie last_name: Lokerse - first_name: Jose full_name: Alonso, Jose last_name: Alonso - first_name: Dolf full_name: Weijers, Dolf last_name: Weijers - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Robert H, Grones P, Stepanova A, et al. Local auxin sources orient the apical basal axis in arabidopsis embryos. Current Biology. 2013;23(24):2506-2512. doi:10.1016/j.cub.2013.09.039 apa: Robert, H., Grones, P., Stepanova, A., Robles, L., Lokerse, A., Alonso, J., … Friml, J. (2013). Local auxin sources orient the apical basal axis in arabidopsis embryos. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2013.09.039 chicago: Robert, Hélène, Peter Grones, Anna Stepanova, Linda Robles, Annemarie Lokerse, Jose Alonso, Dolf Weijers, and Jiří Friml. “Local Auxin Sources Orient the Apical Basal Axis in Arabidopsis Embryos.” Current Biology. Cell Press, 2013. https://doi.org/10.1016/j.cub.2013.09.039. ieee: H. Robert et al., “Local auxin sources orient the apical basal axis in arabidopsis embryos,” Current Biology, vol. 23, no. 24. Cell Press, pp. 2506–2512, 2013. ista: Robert H, Grones P, Stepanova A, Robles L, Lokerse A, Alonso J, Weijers D, Friml J. 2013. Local auxin sources orient the apical basal axis in arabidopsis embryos. Current Biology. 23(24), 2506–2512. mla: Robert, Hélène, et al. “Local Auxin Sources Orient the Apical Basal Axis in Arabidopsis Embryos.” Current Biology, vol. 23, no. 24, Cell Press, 2013, pp. 2506–12, doi:10.1016/j.cub.2013.09.039. short: H. Robert, P. Grones, A. Stepanova, L. Robles, A. Lokerse, J. Alonso, D. Weijers, J. Friml, Current Biology 23 (2013) 2506–2512. date_created: 2018-12-11T11:46:59Z date_published: 2013-12-16T00:00:00Z date_updated: 2021-01-12T08:01:25Z day: '16' department: - _id: JiFr doi: 10.1016/j.cub.2013.09.039 ec_funded: 1 intvolume: ' 23' issue: '24' language: - iso: eng month: '12' oa_version: None page: 2506 - 2512 project: - _id: 25716A02-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '282300' name: Polarity and subcellular dynamics in plants publication: Current Biology publication_status: published publisher: Cell Press publist_id: '7291' quality_controlled: '1' scopus_import: 1 status: public title: Local auxin sources orient the apical basal axis in arabidopsis embryos type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 23 year: '2013' ... --- _id: '3089' abstract: - lang: eng text: The phytohormone auxin is an important determinant of plant development. Directional auxin flow within tissues depends on polar localization of PIN auxin transporters. To explore regulation of PIN-mediated auxin transport, we screened for suppressors of PIN1 overexpression (supo) and identified an inositol polyphosphate 1-phosphatase mutant (supo1), with elevated inositol trisphosphate (InsP 3) and cytosolic Ca 2+ levels. Pharmacological and genetic increases in InsP 3 or Ca 2+ levels also suppressed the PIN1 gain-of-function phenotypes and caused defects in basal PIN localization, auxin transport and auxin-mediated development. In contrast, the reductions in InsP 3 levels and Ca 2+ signaling antagonized the effects of the supo1 mutation and disrupted preferentially apical PIN localization. InsP 3 and Ca 2+ are evolutionarily conserved second messengers involved in various cellular functions, particularly stress responses. Our findings implicate them as modifiers of cell polarity and polar auxin transport, and highlight a potential integration point through which Ca 2+ signaling-related stimuli could influence auxin-mediated development. author: - first_name: Jing full_name: Zhang, Jing last_name: Zhang - first_name: Steffen full_name: Vanneste, Steffen last_name: Vanneste - first_name: Philip full_name: Brewer, Philip B last_name: Brewer - first_name: Marta full_name: Michniewicz, Marta last_name: Michniewicz - first_name: Peter full_name: Peter Grones id: 399876EC-F248-11E8-B48F-1D18A9856A87 last_name: Grones - first_name: Jürgen full_name: Kleine-Vehn, Jürgen last_name: Kleine Vehn - first_name: Christian full_name: Löfke, Christian last_name: Löfke - first_name: Thomas full_name: Teichmann, Thomas last_name: Teichmann - first_name: Agnieszka full_name: Bielach, Agnieszka last_name: Bielach - first_name: Bernard full_name: Cannoot, Bernard last_name: Cannoot - first_name: Klára full_name: Hoyerová, Klára last_name: Hoyerová - first_name: Xu full_name: Xu Chen id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87 last_name: Chen - first_name: Hong full_name: Xue, Hong-Wei last_name: Xue - first_name: Eva full_name: Eva Benková id: 38F4F166-F248-11E8-B48F-1D18A9856A87 last_name: Benková orcid: 0000-0002-8510-9739 - first_name: Eva full_name: Zažímalová, Eva last_name: Zažímalová - first_name: Jirí full_name: Jirí Friml id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Zhang J, Vanneste S, Brewer P, et al. Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and pin polarity. Developmental Cell. 2011;20(6):855-866. doi:10.1016/j.devcel.2011.05.013 apa: Zhang, J., Vanneste, S., Brewer, P., Michniewicz, M., Grones, P., Kleine Vehn, J., … Friml, J. (2011). Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and pin polarity. Developmental Cell. Cell Press. https://doi.org/10.1016/j.devcel.2011.05.013 chicago: Zhang, Jing, Steffen Vanneste, Philip Brewer, Marta Michniewicz, Peter Grones, Jürgen Kleine Vehn, Christian Löfke, et al. “Inositol Trisphosphate-Induced Ca^2+ Signaling Modulates Auxin Transport and Pin Polarity.” Developmental Cell. Cell Press, 2011. https://doi.org/10.1016/j.devcel.2011.05.013. ieee: J. Zhang et al., “Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and pin polarity,” Developmental Cell, vol. 20, no. 6. Cell Press, pp. 855–866, 2011. ista: Zhang J, Vanneste S, Brewer P, Michniewicz M, Grones P, Kleine Vehn J, Löfke C, Teichmann T, Bielach A, Cannoot B, Hoyerová K, Chen X, Xue H, Benková E, Zažímalová E, Friml J. 2011. Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and pin polarity. Developmental Cell. 20(6), 855–866. mla: Zhang, Jing, et al. “Inositol Trisphosphate-Induced Ca^2+ Signaling Modulates Auxin Transport and Pin Polarity.” Developmental Cell, vol. 20, no. 6, Cell Press, 2011, pp. 855–66, doi:10.1016/j.devcel.2011.05.013. short: J. Zhang, S. Vanneste, P. Brewer, M. Michniewicz, P. Grones, J. Kleine Vehn, C. Löfke, T. Teichmann, A. Bielach, B. Cannoot, K. Hoyerová, X. Chen, H. Xue, E. Benková, E. Zažímalová, J. Friml, Developmental Cell 20 (2011) 855–866. date_created: 2018-12-11T12:01:18Z date_published: 2011-06-14T00:00:00Z date_updated: 2021-01-12T07:40:58Z day: '14' doi: 10.1016/j.devcel.2011.05.013 extern: 1 intvolume: ' 20' issue: '6' month: '06' page: 855 - 866 publication: Developmental Cell publication_status: published publisher: Cell Press publist_id: '3612' quality_controlled: 0 status: public title: Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and pin polarity type: journal_article volume: 20 year: '2011' ...