{"quality_controlled":"1","title":"Root gravity response module guides differential growth determining both root bending and apical hook formation in Arabidopsis","status":"public","oa_version":"Published Version","oa":1,"date_created":"2019-09-22T22:00:36Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publisher":"The Company of Biologists","scopus_import":"1","date_published":"2019-09-12T00:00:00Z","publication_status":"published","issue":"17","department":[{"_id":"EvBe"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1242/dev.175919"}],"abstract":[{"text":"The apical hook is a transiently formed structure that plays a protective role when the germinating seedling penetrates through the soil towards the surface. Crucial for proper bending is the local auxin maxima, which defines the concave (inner) side of the hook curvature. As no sign of asymmetric auxin distribution has been reported in embryonic hypocotyls prior to hook formation, the question of how auxin asymmetry is established in the early phases of seedling germination remains largely unanswered. Here, we analyzed the auxin distribution and expression of PIN auxin efflux carriers from early phases of germination, and show that bending of the root in response to gravity is the crucial initial cue that governs the hypocotyl bending required for apical hook formation. Importantly, polar auxin transport machinery is established gradually after germination starts as a result of tight root-hypocotyl interaction and a proper balance between abscisic acid and gibberellins.","lang":"eng"}],"type":"journal_article","day":"12","month":"09","article_processing_charge":"No","date_updated":"2023-08-30T06:19:04Z","pmid":1,"isi":1,"acknowledgement":"We thank Jiri Friml and Phillip Brewer for inspiring discussion and for help in preparing the manuscript. This research was supported by the Scientific Service Units (SSU) of IST-Austria through resources provided by the Bioimaging Facility\r\n(BIF), the Life Science Facility (LSF).\r\nThis work was supported by grants from the European Research Council (Starting Independent Research Grant ERC-2007-Stg- 207362-HCPO to E.B.). J.P. and M.S. received funds from European Regional Development Fund-Project ‘Centre for Experimental Plant Biology’ (No. CZ.02.1.01/0.0/0.0/16_019/0000738).","project":[{"name":"Hormonal cross-talk in plant organogenesis","_id":"253FCA6A-B435-11E9-9278-68D0E5697425","grant_number":"207362","call_identifier":"FP7"}],"intvolume":"       146","volume":146,"year":"2019","acknowledged_ssus":[{"_id":"LifeSc"},{"_id":"Bio"}],"citation":{"short":"Q. Zhu, M. Gallemi, J. Pospíšil, P. Žádníková, M. Strnad, E. Benková, Development 146 (2019).","ama":"Zhu Q, Gallemi M, Pospíšil J, Žádníková P, Strnad M, Benková E. Root gravity response module guides differential growth determining both root bending and apical hook formation in Arabidopsis. <i>Development</i>. 2019;146(17). doi:<a href=\"https://doi.org/10.1242/dev.175919\">10.1242/dev.175919</a>","apa":"Zhu, Q., Gallemi, M., Pospíšil, J., Žádníková, P., Strnad, M., &#38; Benková, E. (2019). Root gravity response module guides differential growth determining both root bending and apical hook formation in Arabidopsis. <i>Development</i>. The Company of Biologists. <a href=\"https://doi.org/10.1242/dev.175919\">https://doi.org/10.1242/dev.175919</a>","ista":"Zhu Q, Gallemi M, Pospíšil J, Žádníková P, Strnad M, Benková E. 2019. Root gravity response module guides differential growth determining both root bending and apical hook formation in Arabidopsis. Development. 146(17), dev175919.","chicago":"Zhu, Qiang, Marçal Gallemi, Jiří Pospíšil, Petra Žádníková, Miroslav Strnad, and Eva Benková. “Root Gravity Response Module Guides Differential Growth Determining Both Root Bending and Apical Hook Formation in Arabidopsis.” <i>Development</i>. The Company of Biologists, 2019. <a href=\"https://doi.org/10.1242/dev.175919\">https://doi.org/10.1242/dev.175919</a>.","ieee":"Q. Zhu, M. Gallemi, J. Pospíšil, P. Žádníková, M. Strnad, and E. Benková, “Root gravity response module guides differential growth determining both root bending and apical hook formation in Arabidopsis,” <i>Development</i>, vol. 146, no. 17. The Company of Biologists, 2019.","mla":"Zhu, Qiang, et al. “Root Gravity Response Module Guides Differential Growth Determining Both Root Bending and Apical Hook Formation in Arabidopsis.” <i>Development</i>, vol. 146, no. 17, dev175919, The Company of Biologists, 2019, doi:<a href=\"https://doi.org/10.1242/dev.175919\">10.1242/dev.175919</a>."},"article_type":"original","ec_funded":1,"article_number":"dev175919","_id":"6897","language":[{"iso":"eng"}],"publication":"Development","author":[{"last_name":"Zhu","first_name":"Qiang","full_name":"Zhu, Qiang","id":"40A4B9E6-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0003-4675-6893","full_name":"Gallemi, Marçal","id":"460C6802-F248-11E8-B48F-1D18A9856A87","first_name":"Marçal","last_name":"Gallemi"},{"full_name":"Pospíšil, Jiří","first_name":"Jiří","last_name":"Pospíšil"},{"full_name":"Žádníková, Petra","last_name":"Žádníková","first_name":"Petra"},{"full_name":"Strnad, Miroslav","first_name":"Miroslav","last_name":"Strnad"},{"orcid":"0000-0002-8510-9739","last_name":"Benková","first_name":"Eva","full_name":"Benková, Eva","id":"38F4F166-F248-11E8-B48F-1D18A9856A87"}],"doi":"10.1242/dev.175919","external_id":{"isi":["000486297400011"],"pmid":["31391194"]},"publication_identifier":{"eissn":["14779129"]}}