The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Free oxygen radicals regulate plasma membrane Ca2+- and K+-permeable channels in plant root cells
Open accessAbstract
Free oxygen radicals are an irrefutable component of life, underlying important biochemical and physiological phenomena in animals. Here it is shown that free oxygen radicals activate plasma membrane Ca2+- and K+-permeable conductances in Arabidopsis root cell protoplasts, mediating Ca2+ influx and K+ efflux,respectively. Free oxygen radicals generate increases in cytosolic Ca2+ mediated by a novel population of nonselective cation channels that differ in selectivity and pharmacology from those involved in toxic Na+ influx. Analysis of the free oxygen radical-activated K+ conductance showed its similarity to the Arabidopsisroot K+ outward rectifier. Significantly larger channel activation was found in cells responsible for perceiving environmental signals and undergoing elongation. Quenching root free oxygen radicals inhibited root elongation, confirming the role of radical-activated Ca2+ influx in cell growth. Net free oxygen radical-stimulated Ca2+ influx and K+ efflux were observed in root cells of monocots, dicots, C3 and C4 plants, suggesting conserved mechanisms and functions. In conclusion, two functions for free oxygen radical cation channel activation are proposed:initialization/amplification of stress signals and control of cell elongation in root growth.
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Cites
Mannitol Protects against Oxidation by Hydroxyl Radicals
Shen, B., Jensen, R. G., & Bohnert, H. J. (1997) · Plant Physiology · doi:10.1104/pp.115.2.527 · Cited by 422
Cited by
Reactive oxygen species as signals that modulate plant stress responses and programmed cell death
Gechev, T. S., Van Breusegem, F., Stone, J. M., Denev, I., & Laloi, C. (2006) · BioEssays · doi:10.1002/bies.20493 · Cited by 1,162
ROS homeostasis in halophytes in the context of salinity stress tolerance
Bose, J., Rodrigo-Moreno, A., & Shabala, S. (2014) · Journal of Experimental Botany · doi:10.1093/jxb/ert430 · Cited by 963
Self-citationSalicylic Acid: A Plant Hormone
(2007) · Springer eBooks · doi:10.1007/1-4020-5184-0 · Cited by 473
Calcium transport across plant membranes: mechanisms and functions
Demidchik, V., Shabala, S., Isayenkov, S., Cuin, T. A., & Pottosin, I. (2018) · New Phytologist · doi:10.1111/nph.15266 · Cited by 459
Self-citationFayez, K. A., & Bazaid, S. A. (2014) · Journal of the Saudi Society of Agricultural Sciences · doi:10.1016/j.jssas.2013.01.001 · Cited by 301
Metadata
- Authors
- Demidchik, V., Shabala, S. N., Coutts, K. B., Tester, M. A., & Davies, J. M.
- Venue
- Journal of Cell Science
- Publisher
- The Company of Biologists
- Published
- 2003-01-01
- Volume
- 116
- Issue
- 1
- Pages
- 81-88
- ISSN
- 0021-9533 (ISSN-L)
- 1477-9137
- OpenAlex
- W2117934496
- Cited by
- 358
- References
- 1
- FWCI
- 10.22
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Demidchik, V., Shabala, S. N., Coutts, K. B., Tester, M. A., & Davies, J. M. (2003). Free oxygen radicals regulate plasma membrane Ca2+- and K+-permeable channels in plant root cells. Journal of Cell Science. https://doi.org/10.1242/jcs.00201
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
