ArticlePlant physiology1998
Mapping the functional roles of cap cells in the response of Arabidopsis primary roots to gravity.
Article in Plant physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers.
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Who cites it
120 citing papers in PubMed.
- Both brefeldin A and latrunculin B treatment induces cytoplasmic aggregation of plasma membrane-associated proteins in epidermal cells, but not in columella cells.Plant signaling & behavior · 2026Article
- Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis.The Plant journal : for cell and molecular biology · 2026Article
- Gramene 2025: expanded comparative genomics and pathway resources, integrated search, and pan-genome portals for crop research.Nucleic acids research · 2026Article
- Actin depolymerization by Latrunculin B can either suppress or promote root gravitropism, depending on the developmental stages in Arabidopsis.Plant signaling & behavior · 2025Article
- SUPPRESSOR OF LAZY QUADRUPLE 1 acts at ER-plasma membrane contact sites to control a gravitropism pathway in theProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Effects of 1-International journal of molecular sciences · 2025Article
- Review
- Differential root zone secretions and the role of root border cells in rhizosphere manipulation.Phytochemistry reviews : proceedings of the Phytochemical Society of Europe · 2025Review
- LAZY4 acts additively with the starch-statolith-dependent gravity-sensing pathway to regulate shoot gravitropism and tiller angle in rice.Plant communications · 2024Article
- Intrinsic Mechanism of CaClInternational journal of molecular sciences · 2024Article
- On the mechanical origins of waving, coiling and skewing inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- A quantitative model for spatio-temporal dynamics of root gravitropism.Journal of experimental botany · 2024Article
- Article
- Low-Speed Clinorotation ofInternational journal of molecular sciences · 2023Article
- Gravity sensing and responses in the coordination of the shoot gravitropic setpoint angle.The New phytologist · 2022Review
- Mutation ofInternational journal of molecular sciences · 2022Article
- Autophagy promotes organelle clearance and organized cell separation of living root cap cells in Arabidopsis thaliana.Development (Cambridge, England) · 2022Article
- New Insights Into the Activity of Apple Dihydrochalcone Phloretin: Disturbance of Auxin Homeostasis as Physiological Basis of Phloretin Phytotoxic Action.Frontiers in plant science · 2022Article
- Characterization of a Novel Creeping Tartary Buckwheat (Frontiers in plant science · 2022Article
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
60 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The cap is widely accepted to be the site of gravity sensing in roots because removal of the cap abolishes root curvature. Circumstantial evidence favors the columella cells as the gravisensory cells because amyloplasts (and often other cellular components) are polarized with respect to the gravity vector. However, there has been no functional confirmation of their role. To address this problem, we used laser ablation to remove defined cells in the cap of Arabidopsis primary roots and quantified the response of the roots to gravity using three parameters: time course of curvature, presentation time, and deviation from vertical growth. Ablation of the peripheral cap cells and tip cells did not alter root curvature. Ablation of the innermost columella cells caused the strongest inhibitory effect on root curvature without affecting growth rates. Many of these roots deviated significantly from vertical growth and had a presentation time 6-fold longer than the controls. Among the two inner columella stories, the central cells of story 2 contributed the most to root gravitropism. These cells also exhibited the largest amyloplast sedimentation velocities. Therefore, these results are consistent with the starch-statolith sedimentation hypothesis for gravity sensing.
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Registered trials
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.