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Antioxidant Activity of Pot Marigold (Calendula officinalis L.) in Response to Metal(loid) Induced Oxidative Stress from Fly Ash Amended Soil

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Abstract

The present study aimed to investigate the variation in the metal(loid)s composition, phytochemicals, enzymatic and non-enzymatic antioxidants activity of pot marigold grown in different treatments of soil and fly ash (FA), i.e., control (soil 100% + 0% FA), 20% FA (soil 80% + 20% FA), 40% FA (soil 60% + 40% FA), 60% FA (soil 40% + 60% FA), 80% FA (soil 20% + 80% FA), and 100% FA (soil 0% + 100% FA). The plant leaves from each treatment were harvested and screened for various metal(loid)s concentrations (Fe, Cu, Mn, Ni, Co, Zn, Cd, Mg, Ca, and As). Further, the harvested leaf samples were extracted using three solvents (ethanol, methanol, and water), and their extract yield percentage, total flavonoid, and phenolic profile, total antioxidants (1,1-Diphenyl-2-picrylhydrazyl (DPPH) assay, ABTS (2,2’-Azinobis-(3-Ethylbenzthiazolin-6-Sulfonic Acid), Ferric reducing power assay (FRAP)), and antioxidant enzymatic activity (Superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT)) were determined. The results revealed that a high accumulation of Fe, Cu, Ni, Co, Zn, and Cr with bioaccumulation factor (BAF > 1) was detected at 40% FA treatment. Furthermore, the phenolic and flavonoid content were increased by 35.44 and 160.13% respectively whereas, DPPH and ABTS activity (with low IC50) was decreased by 82.67 and 31.87% in ethanolic leaf extract at 60% FA application compared to the control. Additionally, at high FA application (100% FA), the parameters such as FRAP value, SOD, CAT, APX, and POD activity were increased by 42.42%, 313.98%, 388.76%, 415.11%, and 177.54% with respect to control soil. The findings suggested that FA application (up to 60%) in soil induced increased production of secondary metabolites, and total antioxidant activity compared to control soil.

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Acknowledgements

The authors would like to thank Amity University Uttar Pradesh, Noida, for providing the facilities to carry out this work.

Funding

Financial support from the Council of Science and Technology (CST), Department of Science and Technology, UP, Government of India through the research grant (CST/AAS/D-1549) to Dr. Sumedha Mohan and Dr. Praveen Dahiya is gratefully acknowledged.

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AV: Experimental design, Writing- original draft and software, Data curation/PD: Conceptualization, Methodology, Project administration, Funding acquisition, Review, and Editing/SM: Conceptualization, Methodology, Project administration, Funding acquisition, Validation, Review and Editing.

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Correspondence to Praveen Dahiya or Sumedha Mohan.

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The authors declare that they have no conflicts of interest in this work. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.

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Handling Editor: Sudhir K. Sopory.

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Varshney, A., Dahiya, P. & Mohan, S. Antioxidant Activity of Pot Marigold (Calendula officinalis L.) in Response to Metal(loid) Induced Oxidative Stress from Fly Ash Amended Soil. J Plant Growth Regul 42, 5928–5944 (2023). https://doi.org/10.1007/s00344-023-10977-2

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  • DOI: https://doi.org/10.1007/s00344-023-10977-2

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