--- _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 acknowledgement: We thank D. Weijers, C. Schwechheimer and R. Offringa for generous sharing of published and unpublished materials and P. Masson for advice on the use of the ARL2 promoter.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 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: '7106' abstract: - lang: eng text: PIN-FORMED (PIN) transporters mediate directional, intercellular movement of the phytohormone auxin in land plants. To elucidate the evolutionary origins of this developmentally crucial mechanism, we analysed the single PIN homologue of a simple green alga Klebsormidium flaccidum. KfPIN functions as a plasma membrane-localized auxin exporter in land plants and heterologous models. While its role in algae remains unclear, PIN-driven auxin export is probably an ancient and conserved trait within streptophytes. article_processing_charge: No article_type: original author: - first_name: Roman full_name: Skokan, Roman last_name: Skokan - first_name: Eva full_name: Medvecká, Eva last_name: Medvecká - first_name: Tom full_name: Viaene, Tom last_name: Viaene - first_name: Stanislav full_name: Vosolsobě, Stanislav last_name: Vosolsobě - first_name: Marta full_name: Zwiewka, Marta last_name: Zwiewka - first_name: Karel full_name: Müller, Karel last_name: Müller - first_name: Petr full_name: Skůpa, Petr last_name: Skůpa - first_name: Michal full_name: Karady, Michal last_name: Karady - first_name: Yuzhou full_name: Zhang, Yuzhou last_name: Zhang - first_name: Dorina P. full_name: Janacek, Dorina P. last_name: Janacek - first_name: Ulrich Z. full_name: Hammes, Ulrich Z. last_name: Hammes - first_name: Karin full_name: Ljung, Karin last_name: Ljung - first_name: Tomasz full_name: Nodzyński, Tomasz last_name: Nodzyński - first_name: Jan full_name: Petrášek, Jan last_name: Petrášek - first_name: Jiří full_name: Friml, Jiří id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Skokan R, Medvecká E, Viaene T, et al. PIN-driven auxin transport emerged early in streptophyte evolution. Nature Plants. 2019;5(11):1114-1119. doi:10.1038/s41477-019-0542-5 apa: Skokan, R., Medvecká, E., Viaene, T., Vosolsobě, S., Zwiewka, M., Müller, K., … Friml, J. (2019). PIN-driven auxin transport emerged early in streptophyte evolution. Nature Plants. Springer Nature. https://doi.org/10.1038/s41477-019-0542-5 chicago: Skokan, Roman, Eva Medvecká, Tom Viaene, Stanislav Vosolsobě, Marta Zwiewka, Karel Müller, Petr Skůpa, et al. “PIN-Driven Auxin Transport Emerged Early in Streptophyte Evolution.” Nature Plants. Springer Nature, 2019. https://doi.org/10.1038/s41477-019-0542-5. ieee: R. Skokan et al., “PIN-driven auxin transport emerged early in streptophyte evolution,” Nature Plants, vol. 5, no. 11. Springer Nature, pp. 1114–1119, 2019. ista: Skokan R, Medvecká E, Viaene T, Vosolsobě S, Zwiewka M, Müller K, Skůpa P, Karady M, Zhang Y, Janacek DP, Hammes UZ, Ljung K, Nodzyński T, Petrášek J, Friml J. 2019. PIN-driven auxin transport emerged early in streptophyte evolution. Nature Plants. 5(11), 1114–1119. mla: Skokan, Roman, et al. “PIN-Driven Auxin Transport Emerged Early in Streptophyte Evolution.” Nature Plants, vol. 5, no. 11, Springer Nature, 2019, pp. 1114–19, doi:10.1038/s41477-019-0542-5. short: R. Skokan, E. Medvecká, T. Viaene, S. Vosolsobě, M. Zwiewka, K. Müller, P. Skůpa, M. Karady, Y. Zhang, D.P. Janacek, U.Z. Hammes, K. Ljung, T. Nodzyński, J. Petrášek, J. Friml, Nature Plants 5 (2019) 1114–1119. date_created: 2019-11-25T09:08:04Z date_published: 2019-11-01T00:00:00Z date_updated: 2023-09-06T11:09:49Z day: '01' ddc: - '580' department: - _id: JiFr doi: 10.1038/s41477-019-0542-5 ec_funded: 1 external_id: isi: - '000496526100010' pmid: - '31712756' file: - access_level: open_access checksum: 94e0426856aad9a9bd0135d5436efbf1 content_type: application/pdf creator: dernst date_created: 2020-10-14T08:54:49Z date_updated: 2020-10-14T08:54:49Z file_id: '8660' file_name: 2019_NaturePlants_Skokan_accepted.pdf file_size: 1980851 relation: main_file success: 1 file_date_updated: 2020-10-14T08:54:49Z has_accepted_license: '1' intvolume: ' 5' isi: 1 issue: '11' language: - iso: eng month: '11' oa: 1 oa_version: Submitted Version page: 1114-1119 pmid: 1 project: - _id: 261099A6-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742985' name: Tracing Evolution of Auxin Transport and Polarity in Plants publication: Nature Plants publication_identifier: issn: - 2055-0278 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: PIN-driven auxin transport emerged early in streptophyte evolution type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 5 year: '2019' ... --- _id: '5673' abstract: - lang: eng text: Cell polarity, manifested by the localization of proteins to distinct polar plasma membrane domains, is a key prerequisite of multicellular life. In plants, PIN auxin transporters are prominent polarity markers crucial for a plethora of developmental processes. Cell polarity mechanisms in plants are distinct from other eukaryotes and still largely elusive. In particular, how the cell polarities are propagated and maintained following cell division remains unknown. Plant cytokinesis is orchestrated by the cell plate—a transient centrifugally growing endomembrane compartment ultimately forming the cross wall1. Trafficking of polar membrane proteins is typically redirected to the cell plate, and these will consequently have opposite polarity in at least one of the daughter cells2–5. Here, we provide mechanistic insights into post-cytokinetic re-establishment of cell polarity as manifested by the apical, polar localization of PIN2. We show that the apical domain is defined in a cell-intrinsic manner and that re-establishment of PIN2 localization to this domain requires de novo protein secretion and endocytosis, but not basal-to-apical transcytosis. Furthermore, we identify a PINOID-related kinase WAG1, which phosphorylates PIN2 in vitro6 and is transcriptionally upregulated specifically in dividing cells, as a crucial regulator of post-cytokinetic PIN2 polarity re-establishment. article_processing_charge: No author: - first_name: Matous full_name: Glanc, Matous id: 1AE1EA24-02D0-11E9-9BAA-DAF4881429F2 last_name: Glanc orcid: 0000-0003-0619-7783 - first_name: Matyas full_name: Fendrych, Matyas id: 43905548-F248-11E8-B48F-1D18A9856A87 last_name: Fendrych orcid: 0000-0002-9767-8699 - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Glanc M, Fendrych M, Friml J. Mechanistic framework for cell-intrinsic re-establishment of PIN2 polarity after cell division. Nature Plants. 2018;4(12):1082-1088. doi:10.1038/s41477-018-0318-3 apa: Glanc, M., Fendrych, M., & Friml, J. (2018). Mechanistic framework for cell-intrinsic re-establishment of PIN2 polarity after cell division. Nature Plants. Nature Research. https://doi.org/10.1038/s41477-018-0318-3 chicago: Glanc, Matous, Matyas Fendrych, and Jiří Friml. “Mechanistic Framework for Cell-Intrinsic Re-Establishment of PIN2 Polarity after Cell Division.” Nature Plants. Nature Research, 2018. https://doi.org/10.1038/s41477-018-0318-3. ieee: M. Glanc, M. Fendrych, and J. Friml, “Mechanistic framework for cell-intrinsic re-establishment of PIN2 polarity after cell division,” Nature Plants, vol. 4, no. 12. Nature Research, pp. 1082–1088, 2018. ista: Glanc M, Fendrych M, Friml J. 2018. Mechanistic framework for cell-intrinsic re-establishment of PIN2 polarity after cell division. Nature Plants. 4(12), 1082–1088. mla: Glanc, Matous, et al. “Mechanistic Framework for Cell-Intrinsic Re-Establishment of PIN2 Polarity after Cell Division.” Nature Plants, vol. 4, no. 12, Nature Research, 2018, pp. 1082–88, doi:10.1038/s41477-018-0318-3. short: M. Glanc, M. Fendrych, J. Friml, Nature Plants 4 (2018) 1082–1088. date_created: 2018-12-16T22:59:18Z date_published: 2018-12-03T00:00:00Z date_updated: 2023-10-17T12:19:28Z day: '03' department: - _id: JiFr doi: 10.1038/s41477-018-0318-3 ec_funded: 1 external_id: isi: - '000454576600017' pmid: - '30518833' intvolume: ' 4' isi: 1 issue: '12' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pubmed/30518833 month: '12' oa: 1 oa_version: Submitted Version page: 1082-1088 pmid: 1 project: - _id: 261099A6-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742985' name: Tracing Evolution of Auxin Transport and Polarity in Plants publication: Nature Plants publication_identifier: issn: - 2055-0278 publication_status: published publisher: Nature Research quality_controlled: '1' scopus_import: '1' status: public title: Mechanistic framework for cell-intrinsic re-establishment of PIN2 polarity after cell division type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 4 year: '2018' ...