ArticlePlanta2011
Changes in gravity rapidly alter the magnitude and direction of a cellular calcium current.
Article in Planta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
What it found
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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.
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Who cites it
19 citing papers in PubMed, 44 citations in OpenAlex.
- Aspects of plant intelligence (ii).Plant signaling & behavior · 2026Review
- Polarized distribution of extracellular nucleotides promotes gravity-directed polarization of development in spores ofFrontiers in plant science · 2023Article
- Gravi-Sensitivity of Mosses and Their Gravity-Dependent Ontogenetic Adaptations.Life (Basel, Switzerland) · 2022Review
- Functional Characterization ofInternational journal of molecular sciences · 2022Article
- Spore Preparation and Protoplast Isolation to Study Gravity Perception and Response in Ceratopteris richardii.Methods in molecular biology (Clifton, N.J.) · 2022Article
- The gravistimulation-induced very slow CaScientific reports · 2021Article
- CaFrontiers in plant science · 2020Review
- Review
- Plasma membrane-anchored chloroplasts are necessary for the gravisensing system of Ceratopteris richardii prothalli.Journal of plant research · 2017Article
- Review
- Lecithin Prevents Cortical Cytoskeleton Reorganization in Rat Soleus Muscle Fibers under Short-Term Gravitational Disuse.PloS one · 2016Article
- The electrical network of maize root apex is gravity dependent.Scientific reports · 2015Article
- A Bird's-Eye View of Molecular Changes in Plant Gravitropism Using Omics Techniques.Frontiers in plant science · 2015Review
- Microgravity induces changes in microsome-associated proteins of Arabidopsis seedlings grown on board the international space station.PloS one · 2014Article
- Article
- Analyses of a gravistimulation-specific Ca2+ signature in Arabidopsis using parabolic flights.Plant physiology · 2013Article
- Organ-specific remodeling of the Arabidopsis transcriptome in response to spaceflight.BMC plant biology · 2013Article
- Identification and analysis of putative homologues of mechanosensitive channels in pathogenic protozoa.PloS one · 2013Article
- Gravity research on plants: use of single-cell experimental models.Frontiers in plant science · 2011Article
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 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In single-celled spores of the fern Ceratopteris richardii, gravity directs polarity of development and induces a directional, trans-cellular calcium (Ca(2+)) current. To clarify how gravity polarizes this electrophysiological process, we measured the kinetics of the cellular response to changes in the gravity vector, which we initially estimated using the self-referencing calcium microsensor. In order to generate more precise and detailed data, we developed a silicon microfabricated sensor array which facilitated a lab-on-a-chip approach to simultaneously measure calcium currents from multiple cells in real time. These experiments revealed that the direction of the gravity-dependent polar calcium current is reversed in less than 25 s when the cells are inverted, and that changes in the magnitude of the calcium current parallel rapidly changing g-forces during parabolic flight on the NASA C-9 aircraft. The data also revealed a hysteresis in the response of cells in the transition from 2g to micro-g in comparison to cells in the micro-g to 2-g transition, a result consistent with a role for mechanosensitive ion channels in the gravity response. The calcium current is suppressed by either nifedipine (calcium-channel blocker) or eosin yellow (plasma membrane calcium pump inhibitor). Nifedipine disrupts gravity-directed cell polarity, but not spore germination. These results indicate that gravity perception in single plant cells may be mediated by mechanosensitive calcium channels, an idea consistent with some previously proposed models of plant gravity perception.
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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.