Journal
JOURNAL OF PLANT INTERACTIONS
Volume 14, Issue 1, Pages 474-481Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17429145.2019.1626922
Keywords
Fe3O4 nanoparticles; tomato; cadmium stress; nutrition; stress response
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Funding
- Ministry of Science, Research and Technology of Iran
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Research on nanotechnology as an emerging discipline has advanced several branches of technology. Although iron is considered as an essential element for plant growth, its role in mitigating abiotic stresses has not been studied widely. Therefore, in this research, it has been attempted to investigate the effect of magnetic Fe(3)o(4) nanoparticles on tomato plants under cadmium stress using 5 levels of magnetic (Fe3O4) nanoparticles (nano-Fe3O4) (0, 10, 20, 50, 100 mg/L) and 3 levels of CdCl2 (0, 100, 200 mu M). Cadmium reduced growth and photosynthesis parameters as well as nutritional elements and increased the content of MDA, H2O2, and proline in tomato plants. Meanwhile 20 mg/L nano-Fe(3)o(4) was able to improve cadmium toxicity by reduction in cadmium accumulation and increase in nutrient intake. However, 20 mg/L nano-Fe(3)o(4) is potentially useful for plant growth and may motivate the variations of plants defense mechanisms in response to cadmium toxicity.
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