ArticlePlant physiology2002
Reorientation of seedlings in the earth's gravitational field induces cytosolic calcium transients.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.
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Who cites it
60 citing papers in PubMed, 192 citations in OpenAlex.
- Aspects of plant intelligence (ii).Plant signaling & behavior · 2026Review
- Epiallelic Variation of TILLER ANGLE CONTROL 5 (TAC5) Regulates Tiller Angle by Modulating Gravitropism in Rice.Rice (New York, N.Y.) · 2025Article
- Gravity induces asymmetric CaPlant signaling & behavior · 2022Article
- Gravity sensing and responses in the coordination of the shoot gravitropic setpoint angle.The New phytologist · 2022Review
- Sensing Mechanisms: Calcium Signaling Mediated Abiotic Stress in Plants.Frontiers in plant science · 2022Review
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- The AtCRK5 Protein Kinase Is Required to Maintain the ROS NO Balance Affecting the PIN2-Mediated Root Gravitropic Response in Arabidopsis.International journal of molecular sciences · 2021Article
- The gravistimulation-induced very slow CaScientific reports · 2021Article
- Gravity Signaling in Flowering Plant Roots.Plants (Basel, Switzerland) · 2020Review
- A gravitropic stimulus alters the distribution of EHB1, a negative effector of root gravitropism in Arabidopsis.Plant direct · 2020Article
- A novel Ca2+-binding protein that can rapidly transduce auxin responses during root growth.PLoS biology · 2019Article
- Root Tropisms: Investigations on Earth and in Space to Unravel Plant Growth Direction.Frontiers in plant science · 2019Review
- 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
- Both gravistimulation onset and removal trigger an increase of cytoplasmic free calcium in statocytes of roots grown in microgravity.Scientific reports · 2018Article
- Electrophysiological experiments in microgravity: lessons learned and future challenges.NPJ microgravity · 2018Review
- Comprehensive Analysis of the CDPK-SnRK Superfamily Genes in Chinese Cabbage and Its Evolutionary Implications in Plants.Frontiers in plant science · 2017Article
- Growing Out of Stress: The Role of Cell- and Organ-Scale Growth Control in Plant Water-Stress Responses.The Plant cell · 2016Review
- Review
- Mechanotransduction as an Adaptation to Gravity.Frontiers in pediatrics · 2016Review
- A Bird's-Eye View of Molecular Changes in Plant Gravitropism Using Omics Techniques.Frontiers in plant science · 2015Review
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The gravitational field controls plant growth, morphology, and development. However, the underlying transduction mechanisms are not well understood. Much indirect evidence has implicated the cytoplasmic free calcium concentration ([Ca(2+)](c)) as an important factor, but direct evidence for changes in [Ca(2+)](c) is currently lacking. We now have made measurements of [Ca(2+)](c) in groups of young seedlings of Arabidopsis expressing aequorin in the cytoplasm and reconstituted in vivo with cp-coelenterazine, a synthetic high-affinity luminophore. Distinct [Ca(2+)](c) signaling occurs in response to gravistimulation with kinetics very different from [Ca(2+)](c) transients evoked by other mechanical stimuli (e.g. movement and wind). [Ca(2+)](c) changes produced in response to gravistimulation are transient but with a duration of many minutes and dependent on stimulus strength (i.e. the angle of displacement). The auxin transport blockers 2,3,5-tri-iodo benzoic acid and N-(1-naphthyl) phthalamic acid interfere with gravi-induced [Ca(2+)](c) responses and addition of methyl indole-3-acetic acid to whole seedlings induces long-lived [Ca(2+)](c) transients, suggesting that changes in auxin transport may interact with [Ca(2+)](c). Permanent nonaxial rotation of seedlings on a two-dimensional clinostat, however, produced a sustained elevation of the [Ca(2+)](c) level. This probably reflects permanent displacement of gravity-sensing cellular components and/or disturbance of cytoskeletal tension. It is concluded that [Ca(2+)](c) is part of the gravity transduction mechanism in young Arabidopsis seedlings.
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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.