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Carbon nanoparticles enhance potassium uptake via upregulating potassium channel expression and imitating biological ion channels in BY-2 cells.
- Source :
- Journal of Nanobiotechnology; 1/28/2020, Vol. 18 Issue 1, p1-14, 14p
- Publication Year :
- 2020
-
Abstract
- Background: Carbon nanoparticles (CNPs) have been reported to boost plant growth, while the mechanism that CNPs enhanced potassium uptake for plant growth has not been reported so far. Results: In this study, the function that CNPs promoted potassium uptake in BY-2 cells was established and the potassium accumulated in cells had a significant correlation with the fresh biomass of BY-2 cells. The K<superscript>+</superscript> accumulation in cells increased with the increasing concentration of CNPs. The K<superscript>+</superscript> influx reached high level after treatment with CNPs and was significantly higher than that of the control group and the negative group treated with K<superscript>+</superscript> channels blocker, tetraethylammonium chloride (TEA<superscript>+</superscript>). The K<superscript>+</superscript> accumulation was not reduced in the presence of CNPs inhibitors. In the presence of potassium channel blocker TEA<superscript>+</superscript> or CNPs inhibitors, the NKT1 gene expression was changed compared with the control group. The CNPs were found to preferentially transport K<superscript>+</superscript> than other cations determined by rectification of ion current assay (RIC) in a conical nanocapillary. Conclusions: These results indicated that CNPs upregulated potassium gene expression to enhance K<superscript>+</superscript> accumulation in BY-2 cells. Moreover, it was speculated that the CNPs simulated protein of ion channels via bulk of carboxyl for K<superscript>+</superscript> permeating. These findings will provide support for improving plant growth by carbon nanoparticles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14773155
- Volume :
- 18
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Journal of Nanobiotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 141432014
- Full Text :
- https://doi.org/10.1186/s12951-020-0581-0