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Toxicological effects of different-sized Co–Fe (CoFe2O4) nanoparticles on Lepidium sativum L.: towards better understanding of nanophytotoxicity

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Abstract

Due to their widespread therapeutic and agricultural applicability and usefulness in removing metals and metalloids from water, cobalt ferrite nanoparticles (NPs) are currently receiving increasing attention from researchers. However, their potential phytotoxicity is still poorly understood. Thus, the aim of the current study was to assess the effects of synthesized cobalt ferrite (CoFe2O4) NPs on biological (morphological, physiological, and biochemical) parameters of edible plant garden-cress (Lepidium sativum L.), depending on particle size and concentrations. In this study, physical characteristics of cobalt ferrite NPs were determined. Increased total content of Co and Fe in L. sativum tissues and their transfer from roots to above-ground parts of seedlings, which depended on the size of NP (15 < 5 < 1.65 nm), indicated that plants had been exposed to Co ferrite NPs. The relative growth of roots, biomass of roots and above-ground parts of seedlings, amounts of chlorophylls a and b, carotenoids, and malondialdehyde (MDA) were determined. The dependence of the tested garden-cress parameters on the size and concentrations of NPs was revealed. Our data showed that the content of MDA in test plants in some cases increased up to 2.5 folds in comparison to control. The increase of the content of chlorophyll b pigment and MDA in test plants is an appropriate indicator of the impact of cobalt ferrite NPs. The findings of our study into toxicological effects of Co–Fe (CoFe2O4) NPs on L. sativum are expected to deepen the knowledge of the nanophytotoxicity of ferromagnetic NPs and their potential application in biomedicine and agriculture.

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Acknowledgements

This research was supported by the research infrastructure Open Access Centre for Nature Research at the initiative of the Open R&D Lithuania network. The authors of the article are incredibly grateful to Dr. B. Lukšienė and Dr. habil. D. Marčiulionienė, who have inspired this study and appearance of this paper.

Funding

This research received funding from the Research Council of Lithuania under the Project No. S-MIP-20-22 and the Third Research Program “Research and application perspectives of biological systems functions, reactions, adaptation (2017-2021)“ of the Nature Research Centre, Vilnius, Lithuania.

Author contribution

DM, ŽJ and NK contributed to the study conception and design. Material preparation, data collection and analysis were performed by DM, AJ, ŽJ, MK, RB, ZŽ, and NK. The first draft of the manuscript was written by DM and ZŽ. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to D. Montvydienė.

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Montvydienė, D., Jagminas, A., Jurgelėnė, Ž. et al. Toxicological effects of different-sized Co–Fe (CoFe2O4) nanoparticles on Lepidium sativum L.: towards better understanding of nanophytotoxicity. Ecotoxicology 30, 277–291 (2021). https://doi.org/10.1007/s10646-020-02340-y

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