Comparative effect of ZnO NPs, ZnO bulk and ZnSO 4 in the antioxidant defences of two plant species growing in two agricultural soils under greenhouse conditions

García‐Gómez, Concepción; Obrador, Ana; González, Demetrio; Babín, Mar; Fernández, María Dolores

doi:10.1016/j.scitotenv.2017.02.153

Cited by 147 publications

(75 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This suggests that dissolution was the major fate of ZnO for both Zn types, in the coated and uncoated urea systems. This is indicated by the similarly high residual bioavailable Zn levels in the postharvest soils (Table 2), which agrees with a previous study (García-Gómez et al, 2017). Irfan et al (2018) also coated urea with bulk ZnO particles (2%) using a slurry composed of honey wax, gum arabica (5% each), paraffin wax, or molasses, without and with heating (60°C) under stirring.…”

Section: Discussionsupporting

confidence: 90%

“…Such heightened or nanoscale-specific effects have been observed in microbes, plants, and other terrestrial species (Dimkpa et al, 2012b;Dimkpa, 2014;Anderson et al, 2018;Rajput et al, 2018). In addition to greater nanoscale reactivity, the degree of the effects of ZnO-NPs also depends on dose, plant species and age, exposure route and duration, and environmental conditions such as pH and surface interactions with other soil components (Jośko and Oleszczuk, 2013;Watson et al, 2015;Mukherjee et al, 2016;García-Gómez et al, 2017;Dimkpa et al, 2019a). The contrasting (toxic vs. beneficial) effects of ZnO-NPs suggest they can be used as plant fertilizer if supplied at judicious doses.…”

Section: Introductionmentioning

confidence: 99%

“…In aqueous environments, the particles can dissolve into ions; or they can aggregate into non-nanoscale particles. Particle dissolution at a high rate obfuscates the effect of the nanofertilizer treatment owing to prevalent ionic activity (García-Gómez et al, 2017;Qiu and Smolders, 2017). In contrast to dissolution, aggregation of nanoparticles negates the definition of "nano" and associated size-specific reactivity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

et al. 2020

View full text Add to dashboard Cite

Zinc oxide nanoparticles (ZnO-NPs) hold promise as novel fertilizer nutrients for crops. However, their ultra-small size could hinder large-scale field application due to potential for drift, untimely dissolution or aggregation. In this study, urea was coated with ZnO-NPs (1%) or bulk ZnO (2%) and evaluated in wheat (Triticum aestivum L.) in a greenhouse, under drought (40% field moisture capacity; FMC) and non-drought (80% FMC) conditions, in comparison with urea not coated with ZnO (control), and urea with separate ZnO-NP (1%) or bulk ZnO (2%) amendment. Plants were exposed to ≤ 2.17 mg/kg ZnO-NPs and ≤ 4.34 mg/kg bulk-ZnO, indicating exposure to a higher rate of Zn from the bulk ZnO. ZnO-NPs and bulk-ZnO showed similar urea coating efficiencies of 74-75%. Drought significantly (p ≤ 0.05) increased time to panicle initiation, reduced grain yield, and inhibited uptake of Zn, nitrogen (N), and phosphorus (P). Under drought, ZnO-NPs significantly reduced average time to panicle initiation by 5 days, irrespective of coating, and relative to the control. In contrast, bulk ZnO did not affect time to panicle initiation. Compared to the control, grain yield increased significantly, 51 or 39%, with ZnO-NP-coated or uncoated urea. Yield increases from bulk-ZnO-coated or uncoated urea were insignificant, compared to both the control and the ZnO-NP treatments. Plant uptake of Zn increased by 24 or 8% with coated or uncoated ZnO-NPs; and by 78 or 10% with coated or uncoated bulk-ZnO. Under non-drought conditions, Zn treatment did not significantly reduce panicle initiation time, except with uncoated bulk-ZnO. Relative to the control, ZnO-NPs (irrespective of coating) significantly increased grain yield; and coated ZnO-NPs enhanced Zn uptake significantly. Zn fertilization did not significantly affect N and P uptake, regardless of particle size or coating. Collectively, these findings demonstrate that coating urea with ZnO-NPs enhances plant performance and Zn accumulation, thus potentiating field-scale deployment of nano-scale micronutrients. Notably, lower Zn inputs

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Researchers at the School of Agricultural, Food and Biosystems Engineering (ETSIAAB) from Universidad Politécnica de Madrid (UPM) have recently reported that zinc oxide nanoparticles serve as the source of zinc micronutrient and can be well utilized as fertilizer feedstock without excessive toxicity [154,155]. On the other hand, Garcia-Gomez et al reported more lethal effects of using zinc oxide nanoparticles in acidic soil than in calcareous soils [156]. In their experiment, using tomato and bean plants, there was higher photosynthetic pigmentation of the plants with increasing zinc concentration in the calcareous soil.…”

Section: Biosafety Of Nanomaterials In Sustainable Agriculturementioning

confidence: 99%

The Role of Nanotechnology in the Fortification of Plant Nutrients and Improvement of Crop Production

et al. 2019

View full text Add to dashboard Cite

Nutrient deficiency in food crops is seriously affecting human health, especially those in the rural areas, and nanotechnology may become the most sustainable approach to alleviating this challenge. There are several ways of fortifying the nutrients in food such as dietary diversification, use of drugs and industrial fortification. However, the affordability and sustainability of these methods have not been completely achieved. Plants absorb nutrients from fertilizers, but most conventional fertilizers have low nutrient use and uptake efficiency. Nanofertilizers are, therefore, engineered to be target oriented and not easily lost. This review surveys the effects of the addition of macro- and nanonutrients to soil, the interaction, and the absorption capability of the plants, the environmental effect and food content of the nutrients. Most reports were obtained from recent works, and they show that plants nutrients could be enriched by applying nanoparticulate nutrients, which are easily absorbed by the plant. Although there are some toxicity issues associated with the use of nanoparticles in crop, biologically synthesized nanoparticles may be preferred for agricultural purposes. This would circumvent the concerns associated with toxicity, in addition to being pollution free. This report, therefore, offers more understanding on the application of nanotechnology in biofortification of plant nutrients and the future possibilities offered by this practice. It also highlights some of the ills associated with the introduction of nanomaterials into the soil for crop’s improvement.

show abstract

“…This is consistent with the increase in the antioxidant capacity observed in fruits with treatments containing 50 and 125 mg L −1 of Cu NPs (Table 3)-increases of 8.18% and 6.49%, respectively, in the ABTS antioxidant capacity, were observed compared to the Control. García et al [63] reported that the application of ZnO NPs to the soil (3, 20, and 225 mg kg −1 ) in bean and tomato crops stimulated the antioxidant capacity considerably. Moreover, the results indicated that Cu NPs application can generate certain stress in tomato plants.…”

Section: Bioactive Compoundsmentioning

confidence: 99%

Foliar Application of Copper Nanoparticles Increases the Fruit Quality and the Content of Bioactive Compounds in Tomatoes

Ortega-Ortíz²,

et al. 2018

View full text Add to dashboard Cite

Nanotechnology is a potential and emerging field with multiple applications in different areas of study. The beneficial effects of the use of nanoparticles in agriculture have already been proven. The objective of this research was to determine if the foliar application of Cu nanoparticles (NPs) could increase the content of the bioactive compounds in tomato fruits. Our study considered four treatments with different concentrations of Cu nanoparticles (50, 125, 250, 500 mg L −1 , diameter 50 nm) applied twice during the development of the culture. The effects on the fruit quality and the contents of the antioxidant compounds were determined. The application of the Cu nanoparticles induced the production of fruits with greater firmness. Vitamin C, lycopene, and the ABTS antioxidant capacity increased compared to the Control. In addition, a decrease in the ascorbate peroxidase (APX) and glutathione peroxidase (GPX) enzymatic activity was observed, while the superoxide dismutase (SOD) and catalase (CAT) enzymes showed a significant increase. The application of Cu NPs induced a greater accumulation of bioactive compounds in tomato fruits.

show abstract

Comparative effect of ZnO NPs, ZnO bulk and ZnSO 4 in the antioxidant defences of two plant species growing in two agricultural soils under greenhouse conditions

Cited by 147 publications

References 59 publications

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

The Role of Nanotechnology in the Fortification of Plant Nutrients and Improvement of Crop Production

Foliar Application of Copper Nanoparticles Increases the Fruit Quality and the Content of Bioactive Compounds in Tomatoes

Contact Info

Product

Resources

About