ArticleThe Plant cell2010
SOMBRERO, BEARSKIN1, and BEARSKIN2 regulate root cap maturation in Arabidopsis.
Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.
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Who cites it
88 citing papers in PubMed, 210 citations in OpenAlex.
- Phylogenomic analysis supports the deep and gradual evolution of water-conducting tissues.Plant physiology · 2026Article
- Stem cell activity is linked to a transient acquisition of pluripotency during callus proliferation.Nature communications · 2026Article
- Brassinosteroids control cell proliferation in the lateral root cap of the Arabidopsis root.EMBO reports · 2026Article
- An RbohC and RbohE-mediated ROS oscillatory circuit regulates root cap turnover in Arabidopsis.iScience · 2025Article
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- Cloning and Functional Analysis ofPlants (Basel, Switzerland) · 2025Article
- Out of the Niche: A Bird's-Eye View of the Molecular Networks Controlling Root Stem Cells.Plants (Basel, Switzerland) · 2025Review
- Many transcription factor families have evolutionarily conserved binding motifs in plants.Plant physiology · 2025Article
- The whole-genome dissection of root system architecture provides new insights for the genetic improvement of alfalfa (Horticulture research · 2025Article
- ABA-activated low-nanomolar CaNature plants · 2025Article
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- Shaping root architecture: towards understanding the mechanisms involved in lateral root development.Biology direct · 2024Review
- Single-cell network analysis reveals gene expression programs for Arabidopsis root development and metabolism.Plant communications · 2024Article
- Morphological Innovation Drives Sperm Release in Bryophytes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- A developmentally controlled cellular decompartmentalization process executes programmed cell death in the Arabidopsis root cap.The Plant cell · 2024Article
- A root cap-localized NAC transcription factor controls root halotropic response to salt stress in Arabidopsis.Nature communications · 2024Article
- Article
- Transcriptional Landscape of Cotton Roots in Response to Salt Stress at Single-cell Resolution.Plant communications · 2023Article
- Repressive ZINC FINGER OF ARABIDOPSIS THALIANA proteins promote programmed cell death in the Arabidopsis columella root cap.Plant physiology · 2023Article
- Brassinosteroid gene regulatory networks at cellular resolution in theScience (New York, N.Y.) · 2023Article
28 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The root cap has a central role in root growth, determining the growth trajectory and facilitating penetration into the soil. Root cap cells have specialized functions and morphologies, and border cells are released into the rhizosphere by specific cell wall modifications. Here, we demonstrate that the cellular maturation of root cap is redundantly regulated by three genes, SOMBRERO (SMB), BEARSKIN1 (BRN1), and BRN2, which are members of the Class IIB NAC transcription factor family, together with the VASCULAR NAC DOMAIN (VND) and NAC SECONDARY WALL THICKENING PROMOTING FACTOR (NST) genes that regulate secondary cell wall synthesis in specialized cell types. Lateral cap cells in smb-3 mutants continue to divide and fail to detach from the root, phenotypes that are independent of FEZ upregulation in smb-3. In brn1-1 brn2-1 double mutants, columella cells fail to detach, while in triple mutants, cells fail to mature in all parts of the cap. This complex genetic redundancy involves differences in expression, protein activity, and target specificity. All three genes have very similar overexpression phenotypes to the VND/NST genes, indicating that members of this family are largely functionally equivalent. Our results suggest that Class IIB NAC proteins regulate cell maturation in cells that undergo terminal differentiation with strong cell wall modifications.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.