Iron enriched quinoa biochar enhances Nickel phytoremediation potential of Helianthus annuus L. by its immobilization and attenuation of oxidative stress: implications for human health.

Autor: Majeed A; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Amjad M; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Imran M; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Murtaza B; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Naeem MA; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Jawad H; Plant Physiology Section, Agronomic Research Institute, AARI, Faisalabad, Pakistan., Qaisrani SA; Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan., Akhtar SS; Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark.
Jazyk: angličtina
Zdroj: International journal of phytoremediation [Int J Phytoremediation] 2023; Vol. 25 (13), pp. 1830-1843. Date of Electronic Publication: 2023 Apr 23.
DOI: 10.1080/15226514.2023.2200834
Abstrakt: The present study was performed to assess Ni-immobilization and the phytoremediation potential of sunflower by the application of quinoa stalks biochar (QSB) and its magnetic nanocomposite (MQSB). The QSB and MQSB were characterized with FTIR, SEM, EDX, and XRD to get an insight of their surface properties. Three-week-old seedlings of sunflower were transplanted to soil spiked with Ni (0, 15, 30, 60, 90 mg kg -1 ), QSB and MQSB (0, 1, and 2%) in the wire house under natural conditions. The results showed that increasing Ni levels inhibited sunflower growth and yield due to the high production of reactive oxygen species (ROS) and lipid peroxidation. Enzyme activities like superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POX) also increased as Ni levels increased. However, the application of QSB and MQSB reduced Ni uptake, root-shoot, and shoot-seed translocation and decreased the generation of ROS, and lowered the activity of SOD, CAT, APX, and POX, leading to improved growth and yield, especially with MQSB. This was verified through SEM, EDX, XRD, and FTIR. It can be concluded that QSB and MQSB can effectively enhance Ni-tolerance in sunflowers and mitigate oxidative stress and human health risks.
Databáze: MEDLINE
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