Silver nanoparticles improve growth and protect against oxidative damage in eggplant seedlings under drought stress

Drought stress is a significant abiotic stressor that has a negative impact on crop production and global food security systems. Drought stress was applied to eggplant seedlings with various field capacities (FC), 80% FC as control, 50% FC, 35% FC, and 20% FC. AgNPs were synthesised from green chemi...

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Published in:Plant, soil and environment soil and environment, 2021-01, Vol.67 (11), p.617-624
Main Authors: Alabdallah, Nadiyah M., Hasan, Md. Mahadi, Salih, Abdalrhaman M., Roushdy, S.S., Al-Shammari, Aisha S., Alsanie, Sumayah I., El-Zaidy, Mohamed
Format: Article
Language:English
Subjects:
Antioxidants
Carotenoids
Catalase
Chemical synthesis
Crop production
Drought
Environmental impact
Enzymes
Food security
Hydrogen peroxide
Leaf area
leaf extracts
Malondialdehyde
Nanoparticles
Nutrient content
particle size
photoperiod
Photosynthesis
Photosynthetic pigments
Pigments
Plant growth
Proline
relative humidity
Security systems
Seedlings
Silver
Solanum melongena
Stress
Superoxide dismutase
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Summary:Drought stress is a significant abiotic stressor that has a negative impact on crop production and global food security systems. Drought stress was applied to eggplant seedlings with various field capacities (FC), 80% FC as control, 50% FC, 35% FC, and 20% FC. AgNPs were synthesised from green chemical methods, whereas different concentrations of AgNPs (0, 0.1, 0.2, 0.5 µmol) were applied exogenously on drought-stressed eggplants. Drought stress decreased the growth parameters (plant height, fresh mass, dry mass, leaf area), photosynthetic pigments (Chl a, Chl b, carotenoids), and protein content while increased the proline, hydrogen peroxide (H2O2), malondialdehyde (MDA) content, and activity of the antioxidant enzymes, i.e., superoxide dismutase (SOD) and catalase (CAT). AgNPs restricted proline accumulation and reduced H2O2, MDA content by upregulating the antioxidant enzymes. Overall, the current study’s findings indicated that AgNPs are an effective eco-friendly and low-cost application for plant growth under drought stress, with the potential to mitigate the impact of drought on plants.
ISSN:1214-1178
1805-9368
DOI:10.17221/323/2021-PSE