Biosynthesized gold nanoparticles maintained nitrogen metabolism, nitric oxide synthesis, ions balance, and stabilizes the defense systems to improve salt stress tolerance in wheat
| Autor: | Nirmalya Tripathy, Sofi J. Hussain, Sarika Kumari, Pratibha Rani, Saud Alamri, Iram Wahid, Rafiq Ahmad, M. Iqbal R. Khan |
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| Rok vydání: | 2022 |
| Předmět: |
Environmental Engineering
Nitrogen Health Toxicology and Mutagenesis Nitrogen assimilation Metal Nanoparticles chemistry.chemical_element Nitric Oxide medicine.disease_cause Salt Stress Nitric oxide chemistry.chemical_compound Stress Physiological medicine Environmental Chemistry Nitrogen cycle Triticum Ions Abiotic component Public Health Environmental and Occupational Health food and beverages General Medicine General Chemistry Pollution chemistry Colloidal gold Biophysics Gold Oxidative stress Glyoxalase system |
| Zdroj: | Chemosphere. 287:132142 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2021.132142 |
| Popis: | Green synthesis of nanoparticles (NPs) is competent in inducing physiological responses in plants for combating the abiotic stresses. Considering this, salt stress is one of the most alarming conditions that exerts complex and polygenic impacts on morph-physiological functioning of plants; resulting in reduced crop productivity and yield. Therefore, understanding the salt responses and tolerance mechanisms are important for sustaining crop productivity. In the current study, we have examined the effects of biosynthesized gold nanoparticles (AuNPs) on wheat (Triticum aestivum) plants under salt stress. Green-synthesized AuNPs were found beneficial in modulating the K+/Na+ ratio, chlorophyll concentration, defense systems, nitrogen assimilation, stomatal dynamics and growth traits under salt stress condition. Furthermore, the excessive accumulation of oxidative stress markers including reactive oxygen/nitrogen species was controlled in response of AuNPs treatment under salt stress. Overall, modulation of these traits commanded to induce salt stress tolerance in wheat plants. |
| Databáze: | OpenAIRE |
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