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Polyamines prevent NaCl‐induced K+ efflux from pea mesophyll by blocking non‐selective cation channels
Open accessAbstract
Despite numerous reports implicating polyamines in plant salinity responses, the specific ionic mechanisms of polyamine‐mediated adaptation to salt‐stress remain elusive. In this work, we show that micromolar concentrations of polyamines are efficient in preventing NaCl‐induced K+ efflux from the leaf mesophyll, and that this effect can be attributed to the inhibition of non‐selective cation channels in mesophyll. The inhibition by externally applied polyamines developed slowly over time, suggesting a cytosolic mode of action. Overall, we suggest that elevated levels of cellular polyamine may modulate the activity of plasma membrane ion channels, improving ionic relations and assisting in a plant's adaptation to salinity.
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Citations
Cited by
Salinity tolerance in halophytes*
Flowers, T. J., & Colmer, T. D. (2008) · New Phytologist · doi:10.1111/j.1469-8137.2008.02531.x · Cited by 2,789
Yokoi, S., Quintero, F. J., Cubero, B., Ruiz, M. T., Bressan, R. A., Hasegawa, P. M., & Pardo, J. M. (2002) · The Plant Journal · doi:10.1046/j.1365-313x.2002.01309.x · Cited by 586
Wu, H., Tito, N., & Giraldo, J. P. (2017) · ACS Nano · doi:10.1021/acsnano.7b05723 · Cited by 533
Atta, K., Mondal, S., Gorai, S., Singh, A. P., Kumari, A., Ghosh, T., Roy, A., Hembram, S., Gaikwad, D. J., Mondal, S., et al. (2023) · Frontiers in Plant Science · doi:10.3389/fpls.2023.1241736 · Cited by 523
Comparative physiology of elemental distributions in plants
Conn, S., & Gilliham, M. (2010) · Annals of Botany · doi:10.1093/aob/mcq027 · Cited by 344
Metadata
- Authors
- Shabala, S., Cuin, T. A., & Pottosin, I.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 2007-04-24
- Volume
- 581
- Issue
- 10
- Pages
- 1993-1999
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W2064796619
- Cited by
- 216
- References
- 0
- FWCI
- 11.94
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Shabala, S., Cuin, T. A., & Pottosin, I. (2007). Polyamines prevent NaCl‐induced K+ efflux from pea mesophyll by blocking non‐selective cation channels. FEBS Letters. https://doi.org/10.1016/j.febslet.2007.04.032
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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