ArticlePlant physiology1999
Plastid sedimentation kinetics in roots of wild-type and starch-deficient mutants of Arabidopsis.
Article in Plant physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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.
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.
Who cites it
31 citing papers in PubMed.
- Physiological and transcriptomic assessment of Arabidopsis identifies two distinct gravity signaling systems.Plant physiology · 2026Article
- Angle dependence as a unifying feature of root graviresponse modules.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Review
- The physiology of plants in the context of space exploration.Communications biology · 2024Review
- Gravity sensing and responses in the coordination of the shoot gravitropic setpoint angle.The New phytologist · 2022Review
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- LAZY1-LIKE-mediated gravity signaling pathway in root gravitropic set-point angle control.Plant physiology · 2021Review
- Gravity Signaling in Flowering Plant Roots.Plants (Basel, Switzerland) · 2020Review
- The Superiority of the Otolith System.Audiology & neuro-otology · 2020Review
- Quantitative and functional posttranslational modification proteomics reveals that TREPH1 plays a role in plant touch-delayed bolting.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Testing the influence of gravity on flower symmetry in five Saxifraga species.Die Naturwissenschaften · 2017Article
- Morphometric analyses of petioles of seedlings grown in a spaceflight experiment.Journal of plant research · 2015Article
- New insights into root gravitropic signalling.Journal of experimental botany · 2015Review
- A Bird's-Eye View of Molecular Changes in Plant Gravitropism Using Omics Techniques.Frontiers in plant science · 2015Review
- Light and gravity signals synergize in modulating plant development.Frontiers in plant science · 2014Review
- Microarray analyses and comparisons of upper or lower flanks of rice shoot base preceding gravitropic bending.PloS one · 2013Article
- A new genetic factor for root gravitropism in rice (Oryza sativa L.).Journal of Zhejiang University. Science. B · 2009Article
- EGY1 plays a role in regulation of endodermal plastid size and number that are involved in ethylene-dependent gravitropism of light-grown Arabidopsis hypocotyls.Plant molecular biology · 2008Article
- How to activate a plant gravireceptor. Early mechanisms of gravity sensing studied in characean rhizoids during parabolic flights.Plant physiology · 2005Article
- Amyloplasts and vacuolar membrane dynamics in the living graviperceptive cell of the Arabidopsis inflorescence stem.The Plant cell · 2005Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sedimentation and movement of plastids in columella cells of the root cap were measured in seedlings of wild-type, a reduced starch mutant, and a starchless mutant of Arabidopsis. To assay for sedimentation, we used both linear measurements and the change of angle from the cell center as indices in vertical and reoriented plants with the aid of computer-assisted image analysis. Seedlings were fixed at short periods after reorientation, and plastid sedimentation correlated with starch content in the three strains of Arabidopsis. Amyloplasts of wild-type seedlings showed the greatest sedimentation, whereas plastids of the starchless mutant showed no significant sedimentation in the vertically grown and reoriented seedlings. Because previous research has shown that a full complement of starch is needed for full gravitropic sensitivity, this study correlates increased sensitivity with plastid sedimentation. However, although plastid sedimentation contributed to gravisensitivity, it was not required, because the gravitropic starchless mutant had plastids that did not sediment. This is the first study, to our knowledge, to measure plastid sedimentation in Arabidopsis roots after reorientation of seedlings. Taken together, the results of this study are consistent with the classic plastid-based and protoplast-based models of graviperception and suggest that multiple systems of perception exist in plant cells.
Indexed as
Identifiers
What OpenQuestion holds
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.