ArticlePlant physiology1997
Cytoplasmic free Ca2+ in Arabidopsis roots changes in response to touch but not gravity.
Article in Plant physiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 210 citations in OpenAlex.
- Calcium imaging: a technique to monitor calcium dynamics in biological systems.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
- Gravity sensing and responses in the coordination of the shoot gravitropic setpoint angle.The New phytologist · 2022Review
- Plant salt response: Perception, signaling, and tolerance.Frontiers in plant science · 2022Review
- Between Stress and Response: Function and Localization of Mechanosensitive CaInternational journal of molecular sciences · 2021Review
- PIEZO ion channel is required for root mechanotransduction inProceedings of the National Academy of Sciences of the United States of America · 2021Article
- Analysis of Graviresponse and Biological Effects of Vertical and Horizontal Clinorotation inPlants (Basel, Switzerland) · 2021Article
- Investigations on Regulation of MicroRNAs in Rice Reveal [CaFrontiers in plant science · 2021Article
- Phosphate Deprivation Can Impair Mechano-Stimulated Cytosolic Free Calcium Elevation inPlants (Basel, Switzerland) · 2020Article
- Cell Type-Specific Imaging of Calcium Signaling inInternational journal of molecular sciences · 2020Article
- DORN1/P2K1 and purino-calcium signalling in plants: making waves with extracellular ATP.Annals of botany · 2020Article
- Plant Salinity Stress: Many Unanswered Questions Remain.Frontiers in plant science · 2019Review
- CBL-interacting protein kinase 25 contributes to root meristem development.Journal of experimental botany · 2019Article
- Root Tropisms: Investigations on Earth and in Space to Unravel Plant Growth Direction.Frontiers in plant science · 2019Review
- Ethylene signaling plays a pivotal role in mechanical-stress-induced root-growth cessation inPlant signaling & behavior · 2019Article
- Both gravistimulation onset and removal trigger an increase of cytoplasmic free calcium in statocytes of roots grown in microgravity.Scientific reports · 2018Article
- Real-time In Vivo Recording of Arabidopsis Calcium Signals During Insect Feeding Using a Fluorescent Biosensor.Journal of visualized experiments : JoVE · 2017Article
- Striking the Right Chord: Signaling Enigma during Root Gravitropism.Frontiers in plant science · 2017Review
- Calcium-Mediated Abiotic Stress Signaling in Roots.Frontiers in plant science · 2016Review
- Article
- Strategies of seedlings to overcome their sessile nature: auxin in mobility control.Frontiers in plant science · 2015Review
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Changes in cytoplasmic Ca2+ concentration ([Ca2+]i) have been proposed to be involved in signal transduction pathways in response to a number of stimuli, including gravity and touch. The current hypothesis proposes that the development of gravitropic bending is correlated with a redistribution of [Ca2+]i in gravistimulated roots. However, no study has demonstrated clearly the development of an asymmetry of this ion during root curvature. We tested this hypothesis by quantifying the temporal and spatial changes in [Ca2+]i in roots of living Arabidopsis seedlings using ultraviolet-confocal Ca(2+)-ratio imaging and vertical stage fluorescence microscopy to visualize root [Ca2+]i. We observed no changes in [Ca2+]i associated with the graviresponse whether monitored at the whole organ level or in individual cells in different regions of the root for up to 12 h after gravistimulation. However, touch stimulation led to transient increases in [Ca2+]i in all cell types monitored. The increases induced in the cap cells were larger and longer-lived than in cells in the meristematic or elongation zone. One millimolar La3+ and 100 microM verapamil did not prevent these responses, whereas 5 mM EGTA or 50 microM ruthenium red inhibited the transients, indicating an intracellular origin of the Ca2+ increase. These results suggest that although touch responses of roots may be mediated through a Ca(2+)-dependent pathway, the gravitropic response is not associated with detectable changes in [Ca2+]i.
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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.