Localization of Coated Iron Oxide (Fe<sub>3</sub>O<sub>4</sub>) Nanoparticles on Tomato Seeds and Their Effects on Growth

Lau, Elizabeth C. H. T.; Carvalho, Lucas Bragança; Pereira, Anderson do Espírito Santo; Montanha, Gabriel Sgarbiero; Corrêa, Camila Graziele; Carvalho, Hudson Wallace Pereira de; Ganin, Alexey Y.; Fraceto, Leonardo Fernandes; Yiu, Humphrey H. P.

doi:10.1021/acsabm.0c00216

Cited by 30 publications

(14 citation statements)

References 30 publications

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“…Earlier studies reported increase in seed germination, plantbiomass, seedling growth/vigor and yield after application of iron oxide nanoparticles [70][71][72][73][74]. Treatment of tomato seeds with Fe 3 O 4 nanoparticles had no side effects on plant growth and development [75]. Similarly, our results veri ed the previous research by observing the enhancement in growth parameters of tomato plants treated with various concentrations of IONPs.…”

Section: Impact Of Ionps On Tomato Growth-parameterssupporting

confidence: 89%

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Ashraf

Anjum

Riaz

et al. 2021

Preprint

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Background: Changing climate enhances the survival of pests and pathogens which eventually affects the crop yield and reduces its economic value. To attain the sustainable food security, novel approaches should be employed. Nanobased agri-chemicals provide a distinctive mechanism to increase productivity and manage phytopathogens with minimum environmental distress. In-vitro and greenhouse studies were conducted to evaluate the potential of green synthesized iron oxide nanoparticles (IONPs) in suppressing the wilt infection caused by Fusarium oxysporum f.sp. lycospersici and to improve tomato growth (Solanum lycopersicum) and fruit quality. Results: Various microwave powers (100 W- 1000 W) were used to modulate the properties of green synthesize IONPs by using spinach as a starting material. The IONPs stabilized with black coffee extract were substantively characterized by X-ray diffraction analysis, fourier transform infrared spectroscopy, dielectric and impedance spectroscopy, X-ray photoelectron spectroscopy, Scanning and transmission electron microscopy and magnetization-analysis. XRD revealed cubic magnetite (Fe3O4) phase with superparamagnetic nature, detected at all microwave powers. Binding energies of Fe 2p3/2 (712.05 eV) and Fe 2p1/2 (723.9 eV) of Fe3O4 NPs was confirmed by XPS analysis observed at microwave power of 1000 W. Uniform, spherical shaped particles with an average diameter of 4 nm were confirmed by SEM and TEM analysis. Significant reduction in mycelial growth and spore germination was perceived after exposure to different treatments of IONPs. Malformed mycelium, DNA fragmentation, alternation in cell membrane and ROS production in F. oxysporum indicates antimicrobial affinity of iron oxide NPs. The particles were applied both through root (before transplantation) and foliar application (after two weeks) to infected seedlings. The IONPs significantly reduced the disease severity by an average of 47.8% resulting in increased plant growth variables at exposure to 10 µg/mL of IONPs. Analysis of photosynthetic pigment, phenolic compounds and antioxidant enzymes in root and shoots signifies an increasing trend after exposure to various concentrations of IONPs. Correspondingly, lycopene, vitamin C, total flavonoids and protein content was substantially improved in tomato fruits after treatment of IONPs. Conclusion: These findings of current investigation suggests that IONPs owned antifungal properties to subdue Fusarium wilt disease by boosting plant growth and fruit quality.

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Section: Impact Of Ionps On Tomato Growth-parameterssupporting

confidence: 89%

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Ashraf

Anjum

Riaz

et al. 2021

Preprint

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show abstract

“…Earlier studies have reported an increase in seed germination, plant biomass, seedling growth, and yield after the application of IONPs [ 70 – 74 ]. Treatment of tomato seeds with Fe 3 O 4 NPs has no side effects on plant growth and development [ 75 ]. Similarly, our results verified the previous research by observing the enhancement in growth parameters of tomato plants treated with various concentrations of IONPs.…”

Section: Resultsmentioning

confidence: 99%

Sustainable synthesis of microwave-assisted IONPs using Spinacia oleracea L. for control of fungal wilt by modulating the defense system in tomato plants

et al. 2022

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Background Changing climate enhances the survival of pests and pathogens, which eventually affects crop yield and reduces its economic value. Novel approaches should be employed to ensure sustainable food security. Nano-based agri-chemicals provide a distinctive mechanism to increase productivity and manage phytopathogens, with minimal environmental distress. In vitro and in greenhouse studies were conducted to evaluate the potential of green-synthesized iron-oxide nanoparticles (IONPs) in suppressing wilt infection caused by Fusarium oxysporum f. sp. lycospersici, and improving tomato growth (Solanum lycopersicum) and fruit quality. Results Various microwave powers (100–1000 W) were used to modulate the properties of the green-synthesized IONPs, using spinach as a starting material. The IONPs stabilized with black coffee extract were substantively characterized using X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy, dielectric and impedance spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning and transmission electron microscopy (SEM and TEM, respectively), and magnetization analysis. XRD revealed a cubic magnetite (Fe3O4) phase with super-paramagnetic nature, detected at all microwave powers. The binding energies of Fe 2p3/2 (710.9 eV) and Fe 2p1/2 (724.5 eV) of Fe3O4 NPs were confirmed using XPS analysis at a microwave power of 1000 W. Uniform, spherical/cubical-shaped particles with an average diameter of 4 nm were confirmed using SEM and TEM analysis. A significant reduction in mycelial growth and spore germination was observed upon exposure to different IONP treatments. Malformed mycelium, DNA fragmentation, alternation in the cell membrane, and ROS production in F. oxysporum indicated the anti-microbial potential of the IONPs. The particles were applied both through the root (before transplantation) and by means of foliar application (after two weeks) to the infected seedlings. IONPs significantly reduced disease severity by an average of 47.8%, resulting in increased plant growth variables after exposure to 12.5 µg/mL of IONPs. Analysis of photosynthetic pigments, phenolic compounds, and anti-oxidant enzymes in the roots and shoots showed an increasing trend after exposure to various concentrations of IONPs. Correspondingly, lycopene, vitamin C, total flavonoids, and protein content were substantially improved in tomato fruits after treatment with IONPs. Conclusion The findings of the current investigation suggested that the synthesized IONPs display anti-fungal and nutritional properties that can help to manage Fusarium wilt disease, resulting in enhanced plant growth and fruit quality. Graphical Abstract

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“…Bands at 1651 and 1632 cm −1 corresponded to stretching of the amide CO bond, 47 while a sharp band at 1400 cm −1 could be attributed to the stretching of aromatic ring C−N or C−C bonds. 13,48 Bands at around 1055 cm −1 were characteristic of stretching of C−O bonds of alcohols, esters, or ethers.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Bands at 1651 and 1632 cm –1 corresponded to stretching of the amide CO bond, while a sharp band at 1400 cm –1 could be attributed to the stretching of aromatic ring C–N or C–C bonds. , Bands at around 1055 cm –1 were characteristic of stretching of C–O bonds of alcohols, esters, or ethers. , The presence of these groups in the spectra for both the filtrate and the nanoparticles indicated the presence of these organic groups on the surfaces of the nanoparticles, possibly in the form of a capping on the iron oxide matrix.…”

Section: Resultsmentioning

confidence: 99%

Biogenic α-Fe₂O₃ Nanoparticles Enhance the Biological Activity of Trichoderma against the Plant Pathogen Sclerotinia sclerotiorum

Bilesky-José

Maruyama

Germano-Costa

et al. 2021

ACS Sustainable Chem. Eng.

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The biogenic synthesis of metallic nanoparticles can contribute to resolving problems related to pests and soil fertilization. Among the different types of metallic nanoparticles, iron nanoparticles have shown good results, especially concerning toxicity because this metal is an essential micronutrient for all plants and can assist their growth, increasing the levels of carbohydrates, proteins, and chlorophyll. This work performed the green synthesis of biogenic iron oxide nanoparticles using the biological control agent Trichoderma harzianum as a stabilizing agent. The physicochemical properties of the nanoparticles were evaluated using the following techniques: dynamic light scattering, nanoparticle tracking analysis, scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. Cytotoxicity was evaluated using different cell lines, while comet and Allium cepa assays were used to assess genotoxicity. In addition, as a proof of concept, the biological activity of the nanoparticles against the pathogen Sclerotinia sclerotiorum (white mold) was evaluated using an in vitro antifungal activity test. The effect of the nanoparticles on seed germination was also evaluated. The results indicated that the nanoparticles consisted of hematite (α-Fe2O3) and had a mean size diameter of 207 ± 2 nm, polydispersity index of 0.45 ± 0.07, and zeta potential of 13 ± 2 mV. The biogenic iron oxide nanoparticles did not alter cell viability, compared to the controls, and did not lead to changes in the mitotic index, at the concentrations used. Furthermore, they were able to increase the proliferation of Trichoderma, which led to the inhibition of emergence of the pathogen S. sclerotiorum and did not affect the germination of the seeds. Therefore, the green synthesis of biogenic iron oxide nanoparticles based on T. harzianum is an attractive option for pest control, aiming at sustainable agricultural practices.

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Localization of Coated Iron Oxide (Fe₃O₄) Nanoparticles on Tomato Seeds and Their Effects on Growth

Abstract: Enlighten -Research publications by members of the University of Glasgow http://eprints.gla.ac.uk Localization of Coated Iron Oxide (Fe 3 O 4 ) Nanoparticles on Tomato Seeds and their Effects on Growth

Cited by 30 publications

References 30 publications

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Sustainable synthesis of microwave-assisted IONPs using Spinacia oleracea L. for control of fungal wilt by modulating the defense system in tomato plants

Biogenic α-Fe₂O₃ Nanoparticles Enhance the Biological Activity of Trichoderma against the Plant Pathogen Sclerotinia sclerotiorum

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Localization of Coated Iron Oxide (Fe3O4) Nanoparticles on Tomato Seeds and Their Effects on Growth

Abstract: Enlighten -Research publications by members of the University of Glasgow http://eprints.gla.ac.uk Localization of Coated Iron Oxide (Fe 3 O 4 ) Nanoparticles on Tomato Seeds and their Effects on Growth

Cited by 30 publications

References 30 publications

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Sustainable Synthesis of Microwave Assisted IONPs by Using Spinacia Oleracea: Enhances Resistance Against Fungal Wilt Infection by Inducing ROS and Modulating Defense System in Tomato Plants

Sustainable synthesis of microwave-assisted IONPs using Spinacia oleracea L. for control of fungal wilt by modulating the defense system in tomato plants

Biogenic α-Fe2O3 Nanoparticles Enhance the Biological Activity of Trichoderma against the Plant Pathogen Sclerotinia sclerotiorum

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Localization of Coated Iron Oxide (Fe₃O₄) Nanoparticles on Tomato Seeds and Their Effects on Growth

Biogenic α-Fe₂O₃ Nanoparticles Enhance the Biological Activity of Trichoderma against the Plant Pathogen Sclerotinia sclerotiorum