Particle size and concentration dependent toxicity of copper oxide nanoparticles (CuONPs) on seed yield and antioxidant defense system in soil grown soybean (Glycine max cv. Kowsar)

2020 ◽  
Vol 715 ◽  
pp. 136994 ◽  
Author(s):  
Elham Yusefi-Tanha ◽  
Sina Fallah ◽  
Ali Rostamnejadi ◽  
Lok Raj Pokhrel
Keyword(s):  
Particle Size ◽  
Glycine Max ◽  
Copper Oxide ◽  
Seed Yield ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Defense System

scholarly journals Zinc Oxide Nanoparticles (ZnONPs) as Nanofertilizer: Improvement on Seed Yield and Antioxidant Defense System in Soil Grown Soybean (Glycine max cv. Kowsar)

2020 ◽  
Author(s):  
Elham Yusefi-Tanha ◽  
Sina Fallah ◽  
Ali Rostamnejadi ◽  
Lok Raj Pokhrel
Keyword(s):  
Oxidative Stress ◽  
Particle Size ◽  
Zinc Oxide ◽  
Glycine Max ◽  
Seed Yield ◽  
Zinc Oxide Nanoparticles ◽  
Antioxidant Defense ◽  
Rhizobium Japonicum ◽  
Oxide Nanoparticles ◽  
List Type

AbstractHerein, we investigated potential phytotoxicity of zinc oxide nanoparticles (ZnONPs) on seed yield, focusing on particle size-, morphology-, and concentration-dependent responses of multiple antioxidant defense biomarkers, in soil-grown soybean (Glycine max cv. Kowsar) during its lifecycle. To this end, we synthesized three types of morphologically unique ZnONPs (spherical/ 38nm, floral-like/ 59nm, and rod-like/ >500nm); all with high purity, triclinic crystal structure and negative surface charge; and compared the toxicity with Zn2+ ions. Each pot received two seeds, placed in soil inoculated with N-fixing bacteria (Rhizobium japonicum) and grown outdoor for 120 days. Our findings demonstrated a significant particle size-, morphology-, and concentration-dependent influence of ZnONPs on seed yield, lipid peroxidation, and various antioxidant biomarkers in soybean. Our spherical 38nm ZnONPs were the most protective compared to the floral-like 59nm ZnONPs, rod-like >500nm ZnONPs, and Zn2+ ions, particularly up to 160 mg/kg. However, at the highest concentration of 400 mg/kg, spherical 38nm ZnONPs elicited the highest oxidative stress responses (H2O2 synthesis, MDA, SOD, CAT, POX) in soybean compared to the other two morphologically different ZnONPs tested. The concentrationresponse curves for the three types of ZnONPs and Zn2+ ions were nonlinear (nonmonotonous) for all the endpoints evaluated. The results also suggest differential nano-specific toxicity of ZnONPs compared to ionic Zn2+ toxicity in soybean. Our higher NOAEL value of 160 mg/kg indicates the potential for ZnONPs to be used as a nanofertilizer for crops grown in Zn-deficient soils to improve crop yield, food quality and address malnutrition, globally.HighlightsParticle size-, morphology-, and concentration-dependent effects of ZnONPs tested.All Zn compounds (ZnONPs, Zn2+) promoted seed yield up to 160 mg/kg.Spherical 38nm ZnONPs elicited the least oxidative stress, except at 400 mg/kg.Concentration-response curves for all Zn compounds were non-linear.ZnONPs may serve as nanofertilizer for enriching Zn-deficit soil with Zn.Abstract FigureTOC Art

scholarly journals Cerium oxide nanoparticles (CeO2-NPs) improve growth parameters and antioxidant defense system in Moldavian Balm (Dracocephalum moldavica L.) under salinity stress

Plant Stress ◽  
2021 ◽  
Vol 1 ◽  
pp. 100006
Author(s):  
Mona Hasan Zadeh Mohammadi ◽  
Sima Panahirad ◽  
Anahita Navai ◽  
Mohammad Kazem Bahrami ◽  
Muhittin Kulak ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Salinity Stress ◽  
Antioxidant Defense ◽  
Growth Parameters ◽  
Antioxidant Defense System ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Defense System

scholarly journals Effective adsorptive removal of azodyes on synthesized copper oxide nanoparticles

2020 ◽  
Vol 10 (3) ◽  
pp. 5369-5375 ◽  
Keyword(s):  
Particle Size ◽  
Copper Oxide ◽  
Camellia Sinensis ◽  
Particle Shape ◽  
Copper Ions ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Uv Spectrum ◽  
Tetragonal Particle ◽  
Phase And Chemical Composition

Copper oxide nanoparticles were synthesized by using Camellia Sinensis leaves extract as a reducing and capping agent of the copper ions in solutions and its azodyes adsorptive efficiency were studied. The produced copper oxide nanoparticles were subsequently characterized by SEM, TEM, XRD, FTIR, and UV spectrophotometer for investigating its particle shape, size, crystalline phase and chemical composition. The particle size of the prepared copper oxide nanoparticle was calculated from the XRD data by using the Scherrer equation was found 17.26 nm. However, the median particle size calculated from the SEM and TEM image analysis was found 25~85 nm of tetragonal particle shape. UV spectrum was obtained with maximum absorption peak at 280 nm. The FTIR spectrum indicated -OH, -C=C- and -C-H functional groups, which is due to the presence of the stabilized layer of the Camellia Sinensis leaf extract which is binded with the prepared copper oxide nanoparticles. The produced copper oxide nanoparticles were used for studying the degradation of Congo red and Malachite green azodies. Different parameters were studied to optimize the reaction conditions. Kinetic models of Langmuir, Freundlich and Elovich models were also applied. The degradation percent of the investigated azodyes on the surface of the produced copper oxide nanoparticles in aqueous solutions was observed between 70-75%.

scholarly journals Green synthesis of copper oxide nanoparticles using Juglans regia leaf extract and assessment of their physico-chemical and biological properties

2019 ◽  
Vol 8 (1) ◽  
pp. 557-567 ◽  
Author(s):  
Marjan Asemani ◽  
Navideh Anarjan
Keyword(s):  
Antioxidant Activity ◽  
Particle Size ◽  
Copper Oxide ◽  
Leaf Extract ◽  
Copper Oxide Nanoparticles ◽  
Copper Salt ◽  
Oxide Nanoparticles ◽  
Furnace Temperature ◽  
Cuo Nps ◽  
Synthesis Parameters

Abstract Copper oxide nanoparticles (CuO NPs) were green synthesized using walnut leaf extract. Effects of three synthesis parameters namely; amount copper salt (1-4 g), amount of walnut leaf extract (10-40 mL) and furnace temperature (300-500°C), on the particle size as manifested in broad absorption peak (λmax, nm), concentration (absorbance), antioxidant activity and antibacterial activity as minimum inhibitory concentration (MIC) of the fabricated CuO NPs were studied using response surface methodology, based on Box behnken experimental design. The spherical and crystalline monodispersed fabricated CuO NPs with mean particle size of 80 nm, were achieved using optimum synthesis parameters including 1 g copper salt, 14 mL walnut leaf extract and 490°C of furnace temperature. The fabricated CuO NPs at these conditions had maximum antioxidant activity of 83.64% and minimum MIC value of 1.78% w/v against E. coli, with λmax and absorbance values of 226 nm, 4.44% a.u., respectively.

scholarly journals Zinc oxide nanoparticles attenuate the oxidative damage and disturbance in antioxidant defense system induced by cyclophosphamide in male albino rats

2020 ◽  
Vol 4 (1) ◽  
pp. 001-008
Author(s):  
El M Shkal Karema ◽  
Azab Azab Elsayed ◽  
Attia Ahmed M ◽  
El-Banna Sabah G ◽  
Yahya Rabia AM
Keyword(s):  
Zinc Oxide ◽  
Oxidative Damage ◽  
Zinc Oxide Nanoparticles ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Nano Particles ◽  
Control Group ◽  
Albino Rats ◽  
Oxide Nanoparticles ◽  
Defense System

Background: Cyclophosphamide is used for the treatment of malignant and non-malignant diseases, but, it induces oxidative damage and disturbance in the antioxidant defense system. Zinc oxide nanoparticles (ZnO NPs) are used in biomedical applications and consumer products. ZnO-NPs are protected cell membranes against oxidative damage, decrease free radicals and malondialdehyde (MDA) levels, and increase the antioxidant enzyme levels. Objectives: The present aimed to evaluate the ameliorative effect of Zn-O nano-particles on oxidative damage and disturbance in the antioxidant defense system induced by cyclophosphamide in male albino rats. Materials and Methods: 24 adult male albino rats were randomly divided into 4 groups (6 rats of each). Group I (Control group): Received 0.2 ml saline /day i.p. injection for 14 days (day by day), group II, (nZnO group): Received nZnO (5 mg/kg/day) b.w., intraperitoneally for 14 days, Group III (CP group): Received CP (20 mg/kg/day) b.w, day by day for 14 days by intraperitoneal injection, Group IV (CP + ZnO NPs group): Received nZnO group: Received nZnO (5 mg/kg/day) b.w., intraperitoneally for 14 days, plus CP (20 mg/kg/day) b.w., day by day for 14 days by intraperitoneal injection. After 24-hr from the last treatment, all animals were anesthetized using light ether. Blood, lungs, and liver samples were taken and prepared for biochemical measurements. Results: Individual treatment of zinc oxide nanoparticles and CP induced liver cytochrome b5, cytochrome C reductase, and glutathione S-transferase (GST) compared to the control group, while CP increased P450. The combination of nZnO and CP prevents the elevation of cytochrome b5, P450, cytochrome C reductase, and GST compared with the CP treated group. Zinc oxide nanoparticles and CP increased liver thiobarbituric acid reactive substances (TBARS). The combination of nZnO and CP prevents the changes in TBARS concentrations compared with the CP. Injection of CP to rats reduced the activities of serum glutathione reductase (GR) and catalase (CAT) as compared with the control group. However, combination treatment of rats with nZnO and CP increased the activities of these enzymes compared with those treated with CP alone. Zinc oxide nanoparticles and CP increased serum and lung TBARS, while decreased glutathione (GSH) concentration compared to the control group, with more pronounced changes by CP. The combination of nZnO and CP prevents the changes in TBARS and GSH concentrations compared with the CP. Conclusion: It can be concluded that CP induced oxidative stress and disturbance in the antioxidant defense system. Treatment of rats with zinc oxide nano-particles and CP together attenuated the oxidative damage and disturbance in the antioxidant defense system induced by CP. So, Patients treated with CP advised to take nZnO to prevent the side effects of chemotherapy. Further studies are necessary to evaluate the amelioration effect nZnO and other nano-particles against oxidative stress induced by CP in different doses and experimental models.

Hydrogen sulfide is a crucial element of the antioxidant defense system in Glycine max–Sinorhizobium fredii symbiotic root nodules

2020 ◽  
Vol 449 (1-2) ◽  
pp. 209-231 ◽  
Author(s):  
Hang Zou ◽  
Ni-Na Zhang ◽  
Xue-Yuan Lin ◽  
Wei-Qin Zhang ◽  
Jian-Hua Zhang ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Glycine Max ◽  
Antioxidant Defense ◽  
Root Nodules ◽  
Antioxidant Defense System ◽  
Defense System ◽  
Sinorhizobium Fredii ◽  
Crucial Element
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