Evidence map›Paper›PMID 19276442›Full record

ArticleThe Plant cell2009

Statolith sedimentation kinetics and force transduction to the cortical endoplasmic reticulum in gravity-sensing Arabidopsis columella cells.

Guenther Leitz, Byung-Ho Kang, Monica E A Schoenwaelder, L Andrew Staehelin

Open access · hybridAbstract read
In one paragraph

Article in The Plant cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
3.9field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 191 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Angle dependence as a unifying feature of root graviresponse modules.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Upregulation of an IAA-GlucosyltransferasePlants (Basel, Switzerland) · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Gravity induces asymmetric CaPlant signaling & behavior · 2022
    Article
  13. Review
  14. Blocking Rice Shoot Gravitropism by Altering One Amino Acid in LAZY1.International journal of molecular sciences · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Mechanosensing, from forces to structures.Frontiers in plant science · 2022
    Review
  20. Article

5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Guenther LeitzDepartment of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado 80309-0347, USA. guenther.leitz@gmail.com
Byung-Ho Kang
Monica E A Schoenwaelder
L Andrew Staehelin
University of Colorado Boulder · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The starch statolith hypothesis of gravity sensing in plants postulates that the sedimentation of statoliths in specialized statocytes (columella cells) provides the means for converting the gravitational potential energy into a biochemical signal. We have analyzed the sedimentation kinetics of statoliths in the central S2 columella cells of Arabidopsis thaliana. The statoliths can form compact aggregates with gap sizes between statoliths approaching <30 nm. Significant intra-aggregate sliding motions of individual statoliths suggest a contribution of hydrodynamic forces to the motion of statoliths. The reorientation of the columella cells accelerates the statoliths toward the central cytoplasm within <1 s of reorientation. During the subsequent sedimentation phase, the statoliths tend to move at a distance to the cortical endoplasmic reticulum (ER) boundary and interact only transiently with the ER. Statoliths moved by laser tweezers against the ER boundary experience an elastic lift force upon release from the optical trap. High-resolution electron tomography analysis of statolith-to-ER contact sites indicate that the weight of statoliths is sufficient to locally deform the ER membranes that can potentially activate mechanosensitive ion channels. We suggest that in root columella cells, the transduction of the kinetic energy of sedimenting statoliths into a biochemical signal involves a combination of statolith-driven motion of the cytosol, statolith-induced deformation of the ER membranes, and a rapid release of kinetic energy from the ER during reorientation to activate mechanosensitive sites within the central columella cells.

Indexed as

ArabidopsisCytoplasmEndoplasmic ReticulumGravity SensingIntracellular MembranesLasersMechanotransduction, CellularNicotianaPlant RootsStatic Electricity

Identifiers

PMID19276442
PMCPMC2671718
OpenAlexW2127011094

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.