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Foliar-applied selenium nanoparticles alleviate cadmium stress through changes in physio-biochemical status and essential oil profile of coriander (Coriandrum sativum L.) leaves

  • Nano-bioremediation Approaches for Sustainable Agriculture
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Abstract

Since large areas of agricultural soils around the world are contaminated by Cd, a cost-effective and practical method is needed for the safe production of edible plants. The effective role of many nanomaterials to improve plant yield by mitigating environmental pollutions is addressed; however, the impacts of selenium nanoparticles (Se-NPs) have not been well-known yet. The aim of this work was to investigate foliar application of Se-NPs on yield, water content, proline concentration, phenolic content, lipid peroxidation, and essential oil (EO) attributes of coriander (Coriandrum sativum L.) under Cd stress. The plants were exposed to Cd contamination (0, 4, and 8 mg L-1) and foliar application of Se-NPs (0, 20, 40, and 60 mg L-1). The results showed increased Cd accumulation in roots and shoots of coriander plants upon Cd stress; however, Se-NPs alleviated the uptake of Cd. Cd toxicity, particularly 8 mg L-1, decreased shoot and root weight, chlorophyll (Chl), and relative water content (RWC), while Se-NPs improved these attributes. The Cd concentration at 4 mg L-1 and Se-NPs at 40 or 60 mg L-1 increased phenolic and flavonoid contents as well as EO yield. Proline concentration and malondialdehyde (MDA) increased by enhancing Cd stress, but Se-NPs decreased MDA. The GC/MS analysis showed that the main EO constitutes were n-decanal (18.80–29.70%), 2E-dodecanal (14.23–19.87%), 2E-decanal (12.60–19.40%), and n-nonane (7.23–12.87%), representing different amounts under Cd pollution and Se-NPs. To sum up, Se-NPs at 40–60 mg L-1 are effective in alleviating Cd stress.

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All the authors equally contributed in preparing the article.

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Correspondence to Marzieh Babashpour-Asl.

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Babashpour-Asl, M., Farajzadeh-Memari-Tabrizi, E. & Yousefpour-Dokhanieh, A. Foliar-applied selenium nanoparticles alleviate cadmium stress through changes in physio-biochemical status and essential oil profile of coriander (Coriandrum sativum L.) leaves. Environ Sci Pollut Res 29, 80021–80031 (2022). https://doi.org/10.1007/s11356-022-19941-1

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  • DOI: https://doi.org/10.1007/s11356-022-19941-1

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