Effect of ZnO Nanoparticles on Growth and Biochemical Responses of Wheat and Maize
| Autor: | Marina Voloshina, Akansha Srivastav, Manoj Shrivastava, Vishnu D. Rajput, Rakesh Kumar Singhal, Deepak Ganjewala, Tatiana Minkina, Sudhakar Srivastava |
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| Rok vydání: | 2021 |
| Předmět: |
Antioxidant
medicine.medical_treatment chemistry.chemical_element Plant Science Zinc engineering.material Article Superoxide dismutase Lipid peroxidation chemistry.chemical_compound Animal science antioxidant enzymes medicine zinc accumulation Ecology Evolution Behavior and Systematics Ecology biology Chemistry Botany food and beverages lipid peroxidation α-amylase dehydrogenase Catalase QK1-989 Shoot biology.protein engineering Fertilizer Peroxidase |
| Zdroj: | Plants, Vol 10, Iss 2556, p 2556 (2021) Plants; Volume 10; Issue 12; Pages: 2556 Plants |
| ISSN: | 2223-7747 |
| DOI: | 10.3390/plants10122556 |
| Popis: | Zinc is an essential element that is also renowned for widespread contamination and toxicity at high concentrations. The present study was carried out to analyze the responses induced by lower, as well as higher, doses of zinc (0–200 mg/L), in the form of zinc oxide nanoparticles (ZnO NPs) in wheat and maize, for a period of 21 days. Accumulation of zinc increases with increasing Zn doses in both wheat and maize, with higher doses being in wheat (121 mg/kg in root and 66 mg/kg in shoot) than in maize (95 mg/kg in root and 48 mg/kg in shoot). The activity of alpha-amylase showed increase, while that of dehydrogenase decline, in response to ZnO NPs. The length and biomass of plants and photosynthetic pigments increased slightly upon ZnO NPs supply. Malondialdehyde content showed a progressive increase in root and shoot of both plants. However, in response, antioxidant enzymes (superoxide dismutase, ascorbate peroxidase, guaiacol peroxidase, and catalase) showed increase up to lower concentrations (100 mg/L) of ZnO NPs but decline variably at higher levels (150–200 mg/L) in wheat and maize. The results suggest that lower supply of ZnO NPs (100 mg/L) could be stimulatory to the growth of plants and can be recommended as a Zn fertilizer source for crop production. |
| Databáze: | OpenAIRE |
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