Comparative effects of nano and bulk-Fe3 O4 on the growth of cucumber (Cucumis sativus)

Ecotoxicology and Environmental Safety
Alexandre KonateZhiyong Zhang

Abstract

Cucumber (Cucumis sativus) plants were cultivated in hydroponic media with nano and bulk- iron oxide (Fe3O4) (50, 500 and 2000 mg/L) over a period of 21 days. At the low concentration (50 mg/L), nano-Fe3O4 resulted in reduction of biomass and enzyme activities compared to the control. However, at the higher concentration of nano-Fe3O4 dosage (2000 mg/L), there was a significant increase in biomass, antioxidant enzymes superoxide dismutase (SOD) and peroxidase (POD). In contrary, the high concentration of bulk-Fe3O4 caused phytotoxicity in terms of biomass and enzymes activity. The phytotoxicity was dependent on the particles property (mainly sizes and aggregation) for nano-F3O4 and concentration dependent for bulk-Fe3O4. The particle size is an important factor that can influence the bioavailability of nanomaterials, which need to be included when evaluating the exposure of nanomaterials and their deleterious effects in the environment. These promising results can help to develop the possible application of Fe3O4 NPs which may improve nutrient management to overcome food security.

Citations

Mar 21, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Muhammad Arslan AhmadYuesuo Yang
Aug 20, 2020·World Journal of Microbiology & Biotechnology·Ebtesam El BestawyAbdelazeem Saad Eltaweil
Feb 21, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yanjuan LiBingfu Lei
Jan 22, 2021·Ecotoxicology and Environmental Safety·María Florencia IannoneMaría Patricia Benavides
Mar 13, 2021·Journal of the Science of Food and Agriculture·Mahmoud M El-SaberAli Osman
May 26, 2021·Environmental Science and Pollution Research International·Rami AlkhatibNour Abdo

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