Phytoremediation of Electronic Waste: A Mechanistic Overview and Role of Plant Secondary Metabolites

Khan, Mubarak Ali; Ullah, Najeeb; Khan, Tariq; Jamal, Muhsin; Shah, Naseer Ali; Ali, Huma

doi:10.1007/978-3-030-26615-8_16

Cited by 7 publications

(1 citation statement)

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“…Fe and Zn are showed to induce ROS-dependent antioxidant defense mechanisms. Metal accumulation in plant cells triggers the antioxidant defense system by activating superoxide dismutase, catalase, or other detoxi cation-related enzymes such as acid phosphatase (ACP) and alkaline phosphatase (AKP) (Khan et al, 2019d). Besides, phenolic and avonoids are recognized to have antioxidant activity, and these compounds of the extract are responsible for these activities (Rebaya et al, 2014).…”

Section: Antioxidant Defense System Triggered By Fe-zno-nps Supplementationmentioning

confidence: 99%

Iron-doped zinc oxide nanoparticles-triggered elicitation of important phenolic compounds in cell cultures of Fagonia indica.

Khan

et al. 2021

Preprint

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Fagonia indica is an important medicinal plant species used traditionally against a variety of diseases. In this study, we initiated callus cultures from healthy stem explants. We observed maximum callus induction frequency (88%) on MS media supplemented with Thidiazuron (1.0 mg/mL). We also examined the callus cultures to determine the impact of iron-doped zinc oxide nanoparticles (Fe-ZnO-NPs) in concentrations (15.62 to 250 µg/mL) on biomass accumulation, secondary metabolism, and antioxidative potential in callus cultures of F. indica. Our results showed that maximum callus biomass (FW = 13.6 g and DW = 0.58 ± 0.01) was produced on day 40 when the media was supplemented with 250 µg/mL Fe-ZnO-NPs. Similarly, maximum TPC (268.36 µg GAE/g of DW) was detected in 40 days old callus added with 125 µg/mL Fe-ZnO-NPs. Maximum TFC (78.56 µg QE/g of DW) was observed in 20 days old callus grown in 62.5 µg/mL Fe-ZnO-NPs containing media. Maximum total antioxidant capacity (390.74 µg AAE/g of DW) was observed in 40 days old callus with 125 µg/mL Fe-ZnO-NPs treated cultures, respectively. The antioxidant potential was in correlation with the TPC. These results showed that Fe-ZnO-NPs elicitors can increase the biomass and activate secondary metabolism in F. indica cells.

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Section: Antioxidant Defense System Triggered By Fe-zno-nps Supplementationmentioning

confidence: 99%