ZnO nanoparticles mediated by Azadirachta indica as nano fertilizer: Improvement in physiological and biochemical indices of Zea mays grown in Cr-contaminated soil
Article
Mehmood, Sajid, Ou, Wenjie, Ahmed, Waqas, Bundschuh, Jochen, Rizwan, Muhammad, Mahmood, Mohsin, Sultan, Haider, Alatalo, Juha M., Elnahal, Ahmed S.M., Liu, Wenjie and Li, Weidong. 2023. "ZnO nanoparticles mediated by Azadirachta indica as nano fertilizer: Improvement in physiological and biochemical indices of Zea mays grown in Cr-contaminated soil." Environmental Pollution. 339. https://doi.org/10.1016/j.envpol.2023.122755
| Article Title | ZnO nanoparticles mediated by Azadirachta indica as nano fertilizer: Improvement in physiological and biochemical indices of Zea mays grown in Cr-contaminated soil |
|---|---|
| ERA Journal ID | 5823 |
| Article Category | Article |
| Authors | Mehmood, Sajid, Ou, Wenjie, Ahmed, Waqas, Bundschuh, Jochen, Rizwan, Muhammad, Mahmood, Mohsin, Sultan, Haider, Alatalo, Juha M., Elnahal, Ahmed S.M., Liu, Wenjie and Li, Weidong |
| Journal Title | Environmental Pollution |
| Journal Citation | 339 |
| Article Number | 122755 |
| Number of Pages | 12 |
| Year | 2023 |
| Publisher | Elsevier |
| Place of Publication | United Kingdom |
| ISSN | 0269-7491 |
| 1873-6424 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.envpol.2023.122755 |
| Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0269749123017578 |
| Abstract | The current investigation aimed at evaluating the impact of Azadirachta indica-mediated zinc oxide nanoparticles (Ai-ZnONPs) on the growth and biochemical characteristics of maize (sweet glutinous 3000) under exposure to 50 mg kg?1 Ai-ZnONPs with Cr (VI) concentrations of 50 and 100 mg kg?1. The results indicate that plants exposed to Cr (VI) only experienced a decline in growth parameters. Conversely, the inclusion of Ai-ZnONPs caused a noteworthy increase in physiological traits. Specifically, shoot and root fresh weight increased by 28.02% and 16.51%, and 63.11% and 97.91%, respectively, when compared to Cr-50 and 100 treatments. Additionally, the SPAD chlorophyll of the shoot increased by 91.08% and 15.38% compared to Cr-50 and 100 treatments, respectively. Moreover, the antioxidant enzyme traits of plant shoot and root, such as superoxide dismutase (SOD 7.44% and 2.70%, and 4.45% and 3.53%), catalase (CAT 1.18% and 3.20%, and 5.03% and 5.78%), and peroxidase (POD 0.31% and 5.55%, and 4.72% and 3.61%), exhibited significant increases in Cr 50 and 100 treatments, respectively. The addition of Ai-ZnONPs to the soil also enhanced soil nutrient status and reduced Cr (VI) concentrations by 40.69% and 19.82% compared to Cr-50 and 100 treated soils. These findings suggest that Ai-ZnONPs can trigger the activation of biochemical pathways that enable biomass accumulation in meristematic cells. Further investigations are required to elucidate the mechanisms involved in growth promotion. © 2023 Elsevier Ltd |
| Keywords | Azadirachta indica; ZnO nanoparticles ; Nano fertilizer ; Zea mays ; Chromium contamination |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 4105. Pollution and contamination |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Hainan University, China |
| University of Southern Queensland | |
| Qatar University, Qatar | |
| Zagazig University, Egypt |
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