Responsible Mechanisms for the Restriction of Heavy Metal Toxicity in Plants via the Co-Foliar Spraying of Nanoparticles

Bamboo is nutritionally significant across the world because shoots are high in calories and nutritional fiber but low cholesterol. However, recent research has shown that bamboo also contain a substantial quantity of heavy metals, including arsenic (As). Therefore, we explored whether co-application iron oxide nanoparticles (IONPs) selenium (Se-NPs) would attenuate As toxicity plants (Pleioblastus pygmaeus). A greenhouse experiment was performed to investigate plant responses toxicity. exposed four levels (0, 10, 20, 40 mg L−1) were foliar-sprayed with 60 L−1 Se-NPs IONPs alone combination. The data indicated different concentrations (10, caused membrane damage reactive species (ROS) production cells, characterized by H2O2, O2•−, MDA, EL increasing up 47%, 54%, 57%, 65%, respectively, comparison control. + IONP markedly improved antioxidant enzyme activities (by 75% SOD, 27% POD, 52% CAT, 37% GR, 38% PAL), total flavonoid content (42%), phenolic (36%), proline (44%), nitric (59%), putrescine (Put) (85%), spermidine (Spd) (53%), relative water (RWC) photosynthetic characteristics (27%) net photosynthesis (Pn) (24% intercellular CO2 concentration (Ci), 39% stomatal conductance (Gs), 31% chlorophyll pigments), ultimately biomass indices growth. 10 20 raised TI 14% 9% shoot 18% root, respectively. reduced ROS, cell lipoperoxidation, electrolyte leakage, all contributing decrease oxidative stress limiting uptake translocation. In sum, endurance, yet most effective approach for bamboo’s ability recover from concurrent use IONPs. Our Se-NP single combined applications offer novel knowledge improving tolerance mechanism against exposure Pleioblastus pygmaeus.