Zinc Oxide Nanoparticles Improve Pleioblastus pygmaeus Plant Tolerance to Arsenic and Mercury by Stimulating Antioxidant Defense and Reducing the Metal Accumulation and Translocation

• DOI: 10.3389/fpls.2022.841501
• Publication Date: 2022-02-28T12:03:10Z
• Authors: Abolghassem Emamv...; Mirza Hasanuzzaman; Yulong Ding; James Barker; Farzad Mokhberdoran; Guohua Liu
• Keywords: Metalloid

The utilization of nanoparticles to potentially reduce toxicity from metals/metalloids in plants has increased recent years, which can help them achieve tolerance under the stressful conditions. An vitro experiment was conducted investigate five different levels zinc oxide (ZnO-NPs; 0, 50, 100, 150, and 200 μM) both alone combination with 150 μM arsenic (As) mercury (Hg) one-year-old Pleioblastus pygmaeus (Miq.) Nakai through four replications. results demonstrated that As Hg had damaging effects on plant growth development. However, addition various concentrations ZnO-NPs led antioxidant activity, proline (79%) content, glycine betaine (71%) tyrosine ammonia-lyase (43%) phenylalanine (69%) chlorophyll indices, eventually biomass, while lipoxygenase electrolyte leakage, soluble protein, hydrogen peroxide thiobarbituric acid reactive substances were reduced. We concluded detoxified increasing reducing accumulation, translocation roots shoots, adjusting stomatal closure. This detoxification further confirmed by reduction factor enhancement index ZnO-NPs. there is a need for investigation metals/metalloids.