--- _id: '146' abstract: - lang: eng text: The root cap protects the stem cell niche of angiosperm roots from damage. In Arabidopsis, lateral root cap (LRC) cells covering the meristematic zone are regularly lost through programmed cell death, while the outermost layer of the root cap covering the tip is repeatedly sloughed. Efficient coordination with stem cells producing new layers is needed to maintain a constant size of the cap. We present a signalling pair, the peptide IDA-LIKE1 (IDL1) and its receptor HAESA-LIKE2 (HSL2), mediating such communication. Live imaging over several days characterized this process from initial fractures in LRC cell files to full separation of a layer. Enhanced expression of IDL1 in the separating root cap layers resulted in increased frequency of sloughing, balanced with generation of new layers in a HSL2-dependent manner. Transcriptome analyses linked IDL1-HSL2 signalling to the transcription factors BEARSKIN1/2 and genes associated with programmed cell death. Mutations in either IDL1 or HSL2 slowed down cell division, maturation and separation. Thus, IDL1-HSL2 signalling potentiates dynamic regulation of the homeostatic balance between stem cell division and sloughing activity. article_processing_charge: No article_type: original author: - first_name: Chun Lin full_name: Shi, Chun Lin last_name: Shi - 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: Ullrich full_name: Herrmann, Ullrich last_name: Herrmann - first_name: Mari full_name: Wildhagen, Mari last_name: Wildhagen - first_name: Ivan full_name: Kulik, Ivan id: F0AB3FCE-02D1-11E9-BD0E-99399A5D3DEB last_name: Kulik - first_name: Andreas full_name: Kopf, Andreas last_name: Kopf - first_name: Takashi full_name: Ishida, Takashi last_name: Ishida - first_name: Vilde full_name: Olsson, Vilde last_name: Olsson - first_name: Mari Kristine full_name: Anker, Mari Kristine last_name: Anker - first_name: Markus full_name: Albert, Markus last_name: Albert - first_name: Melinka A full_name: Butenko, Melinka A last_name: Butenko - first_name: Georg full_name: Felix, Georg last_name: Felix - first_name: Shinichiro full_name: Sawa, Shinichiro last_name: Sawa - first_name: Manfred full_name: Claassen, Manfred last_name: Claassen - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: Reidunn B full_name: Aalen, Reidunn B last_name: Aalen citation: ama: Shi CL, von Wangenheim D, Herrmann U, et al. The dynamics of root cap sloughing in Arabidopsis is regulated by peptide signalling. Nature Plants. 2018;4(8):596-604. doi:10.1038/s41477-018-0212-z apa: Shi, C. L., von Wangenheim, D., Herrmann, U., Wildhagen, M., Kulik, I., Kopf, A., … Aalen, R. B. (2018). The dynamics of root cap sloughing in Arabidopsis is regulated by peptide signalling. Nature Plants. Nature Publishing Group. https://doi.org/10.1038/s41477-018-0212-z chicago: Shi, Chun Lin, Daniel von Wangenheim, Ullrich Herrmann, Mari Wildhagen, Ivan Kulik, Andreas Kopf, Takashi Ishida, et al. “The Dynamics of Root Cap Sloughing in Arabidopsis Is Regulated by Peptide Signalling.” Nature Plants. Nature Publishing Group, 2018. https://doi.org/10.1038/s41477-018-0212-z. ieee: C. L. Shi et al., “The dynamics of root cap sloughing in Arabidopsis is regulated by peptide signalling,” Nature Plants, vol. 4, no. 8. Nature Publishing Group, pp. 596–604, 2018. ista: Shi CL, von Wangenheim D, Herrmann U, Wildhagen M, Kulik I, Kopf A, Ishida T, Olsson V, Anker MK, Albert M, Butenko MA, Felix G, Sawa S, Claassen M, Friml J, Aalen RB. 2018. The dynamics of root cap sloughing in Arabidopsis is regulated by peptide signalling. Nature Plants. 4(8), 596–604. mla: Shi, Chun Lin, et al. “The Dynamics of Root Cap Sloughing in Arabidopsis Is Regulated by Peptide Signalling.” Nature Plants, vol. 4, no. 8, Nature Publishing Group, 2018, pp. 596–604, doi:10.1038/s41477-018-0212-z. short: C.L. Shi, D. von Wangenheim, U. Herrmann, M. Wildhagen, I. Kulik, A. Kopf, T. Ishida, V. Olsson, M.K. Anker, M. Albert, M.A. Butenko, G. Felix, S. Sawa, M. Claassen, J. Friml, R.B. Aalen, Nature Plants 4 (2018) 596–604. date_created: 2018-12-11T11:44:52Z date_published: 2018-07-30T00:00:00Z date_updated: 2023-09-19T10:08:45Z day: '30' ddc: - '580' department: - _id: JiFr doi: 10.1038/s41477-018-0212-z external_id: isi: - '000443861300016' pmid: - '30061750' file: - access_level: open_access checksum: da33101c76ee1b2dc5ab28fd2ccba9d0 content_type: application/pdf creator: dernst date_created: 2019-11-18T16:24:07Z date_updated: 2020-07-14T12:44:56Z file_id: '7043' file_name: 2018_NaturePlants_Shi.pdf file_size: 226829 relation: main_file file_date_updated: 2020-07-14T12:44:56Z has_accepted_license: '1' intvolume: ' 4' isi: 1 issue: '8' language: - iso: eng month: '07' oa: 1 oa_version: Submitted Version page: 596 - 604 pmid: 1 publication: Nature Plants publication_status: published publisher: Nature Publishing Group publist_id: '7777' quality_controlled: '1' related_material: link: - description: News on IST Homepage relation: press_release url: https://ist.ac.at/en/news/new-process-in-root-development-discovered/ scopus_import: '1' status: public title: The dynamics of root cap sloughing in Arabidopsis is regulated by peptide signalling type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 4 year: '2018' ...