Engineered nanomaterials inhibit Podosphaera pannosa infection on rose leaves by regulating phytohormones

Hao, Yi; Fang, Peihong; Ma, Chuanxin; White, Jason C.; Xiang, Zhiqian; Wang, Haitao; Zhang, Zhao; Rui, Yukui; Xing, Baoshan

doi:10.1016/j.envres.2018.12.008

Cited by 93 publications

(34 citation statements)

References 34 publications

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“…In such cases, nMgO have been applied as a microbicide for diversified disease treatments, such as for bacterial wilt (R. solanacearum) (Imada et al, 2016) and Fusarium wilt (F. oxysporum) (Parizi et al, 2014). In addition, it has been reported that other metallic nanoparticles, such as copper-based nanoparticles, ZnO, and AgNPs, displayed their effectiveness in controlling bacterial and fungal diseases in vivo in both pot experiments and field tests, which involved tomato late blight disease (Phytophthora infestans) (Giannousi et al, 2013), gray mold (B. cinerea) (Rodriguez-Gonzalez et al, 2016;Hao et al, 2017), leaf spot disease (Xanthomonas perforans) (Ocsoy et al, 2013), spot blotch disease (Bipolaris sorokiniana) (Mishra and Singh, 2015), powdery mildew (Podosphaera pannosa) (Hao et al, 2019), tomato Fusarium wilt (F. oxysporum) and Verticillium wilt (V. dahliae) (Elmer and White, 2016), and Fusarium head blight (F. graminearum) (Chen et al, 2016b). TiO 2 has also drawn on its strengths of photocatalytic disinfection to become a novel approach for the control and inactivation of phytopathogenic fungi, such as Fusarium head blight and tomato gray mold (Paret et al, 2013;Zhang et al, 2013;Rodriguez-Gonzalez et al, 2016).…”

Section: Efficiently Managing Soilborne Fungal Diseasesmentioning

confidence: 99%

“…A series of inorganic and organic nanomaterials have been developed and proven to exhibit prominent antibacterial, antifungal, and antiviral properties on phytopathogenic microbes in vitro, and some of them still exerted their toxicity effects under greenhouse and field conditions. To date, TiO 2 , CuO (Hao et al, 2017(Hao et al, , 2019Liu et al, 2017), Zn, ZnO (Xue et al, 2014;Antonoglou et al, 2018;Sun et al, 2018), carbon nanomaterials (Chen et al, 2014(Chen et al, , 2016b, Al, and Si nanoparticles (Park H.J. et al, 2006;Shenashen et al, 2017) have been reported to display toxicity toward phytopathogenic bacteria and fungi, decreasing the disease incidence.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study on the Fungicidal Activity of Metallic MgO Nanoparticles and Macroscale MgO Against Soilborne Fungal Phytopathogens

Chen

et al. 2020

Front. Microbiol.

138

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Engineered nanoparticles have provided a basis for innovative agricultural applications, specifically in plant disease management. In this interdisciplinary study, by conducting comparison studies using macroscale magnesium oxide (mMgO), we evaluated the fungicidal activity of MgO nanoparticles (nMgO) against soilborne Phytophthora nicotianae and Thielaviopsis basicola for the first time under laboratory and greenhouse conditions. In vitro studies revealed that nMgO could inhibit fungal growth and spore germination and impede sporangium development more efficiently than could macroscale equivalents. Indispensably, direct contact interactions between nanoparticles and fungal cells or nanoparticle adsorption thereof were found, subsequently provoking cell morphological changes by scanning electron microscopy/energy-dispersive spectrometry (SEM/EDS) and transmission electron microscopy (TEM). In addition, the disturbance of the zeta potential and accumulation of various modes of oxidative stress in nMgO-exposed fungal cells accounted for the underlying antifungal mechanism. In the greenhouse, approximately 36.58 and 42.35% decreases in tobacco black shank and black root rot disease, respectively, could testify to the efficiency by which 500 µg/ml of nMgO suppressed fungal invasion through root irrigation (the final control efficiency reached 50.20 and 62.10%, respectively) when compared with that of untreated controls or mMgO. This study will extend our understanding of nanoparticles potentially being adopted as an effective strategy for preventing diversified fungal infections in agricultural fields.

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Section: Efficiently Managing Soilborne Fungal Diseasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Fungicidal Activity of Metallic MgO Nanoparticles and Macroscale MgO Against Soilborne Fungal Phytopathogens

Chen

et al. 2020

Front. Microbiol.

138

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“…The use of modern technologies can be exploited to limit harmful agrochemicals [8]. Nanotechnology can play a vital role in dealing with these problems [9][10][11]. Recently, titanium dioxide (TiO 2 ) has extensively been used as an environment friendly and clean photocatalyst due to its optical characteristics, chemical stability and non-toxic nature [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Titanium dioxide nanoparticles elicited agro-morphological and physicochemical modifications in wheat plants to control Bipolaris sorokiniana

et al. 2021

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The current study involves the biogenesis of titanium dioxide nanoparticles (TiO2 NPs) by using Moringa oleifera Lam. aqueous leaf extract for the reduction of titanium dioxide salt into TiO2 nanoparticles. The biosynthesized TiO2 nanoparticles were observed by using the UV-visible spectrophotometry, SEM, EDX and XRD analytical methods. It was confirmed that the nanoparticles are crystalline and exist in the size range of 10–100 nm. The FTIR analysis confirmed the presence of O-H (hydrogen bonding), N-H (amide), C-C (alkanes) and C-I (Iodo-stretch) functional groups responsible for the stabilization of nanoparticles. Various concentrations (20, 40, 60 and 80 mg/L) of TiO2 NPs were applied exogenously on wheat plants infected with a fungus Bipolaris sorokiniana responsible to cause spot blotch disease at different time intervals. The measurement of disease incidence and percent disease index showed the time-dependent response and 40 mg/L was reported a stable concentration of TiO2 NPs to reduce the disease severity. The effects of biosynthesized TiO2 NPs were also evaluated for agro-morphological (leaf and root surface area, plant fresh and dry weight and yield parameters), physiological (relative water content, membrane stability index and chlorophyll content) and non-enzymatic metabolites (soluble sugar, protein, soluble phenol and flavonoid content) in wheat plants under biotic stress and 40 mg/L concentration of TiO2 NPs was found to be effective to elicit modifications to reduce biotic stress. The current study highlights the significant role of biosynthesized TiO2 NPs in controlling fungal diseases of wheat plants and thus ultimately improving the quality and yield of wheat plants.

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“…Plants that had CuO NPs applied at 150–340 μ g/mL had superior fungal treatment results compared to those treated with Cu 2 O and Cu/Cu 2 O NPs [ 9 ]. Application of 50 mg/L CuO NP suspension to rose leaves reduces the growth of Podosphaera pannosa fungi [ 10 ]. Fe 3 O 4 NPs can increase Nicotiana benthamiana plant resistance response against the tobacco mosaic virus, developing plant morphological parameters such as plant dry and fresh weights [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe3O4 and CuO Nanoparticles on Morphology, Genotoxicity, and miRNA Expression on Different Barley (Hordeum vulgare L.) Genotypes

Petrova

Plaksenkova

Kokina

et al. 2021

The Scientific World Journal

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Metal nanoparticles (NPs) have an influence on plant growth and development. They can alter plant shoot and root length, fresh biomass production, and even influence the genome. Nanoparticles are also able to affect expression levels of plant microRNAs. MicroRNAs are able to protect plants from biotic stress, including pathogens which cause powdery mildew. In this study, Hordeum vulgare L. varieties “Marthe” and “KWS Olof” were grown in hydroponics with magnetic iron oxide (Fe3O4) and copper oxide (CuO) NPs added at 17, 35, and 70 mg/L. Plant morphology, genotoxicity, and expression of miR156a were investigated. The Fe3O4 and CuO NPs demonstrated different effects on the barley varieties, namely, Fe3O4 nanoparticles increased plant shoot and root lengths and fresh biomass, while CuO nanoparticles decreased them. CuO NPs presence caused larger changes on barley genome compared to Fe3O4 NPs. Thus, Fe3O4 NPs reduced genome stability to 72% in the “Marthe” variety and to 76.34% in the “KWS Olof” variety, while CuO NPs reduced genome stability to 53.33% in “Marthe” variety and in the “KWS Olof” variety to 68.81%. The miR156a expression levels after Fe3O4 NPs treatment did not change in the “Marthe” variety, but increased in the “KWS Olof” variety, while CuO NPs treatment increased miRNA expression levels in the “Marthe” variety but decrease them in the “KWS Olof” variety. As NPs are able to influence miRNA expression and miRNAs can affect the plant resistance, obtained results suggest that tested NPs may alter plant resistance response to pathogens.

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Engineered nanomaterials inhibit Podosphaera pannosa infection on rose leaves by regulating phytohormones

Cited by 93 publications

References 34 publications

Comparative Study on the Fungicidal Activity of Metallic MgO Nanoparticles and Macroscale MgO Against Soilborne Fungal Phytopathogens

Comparative Study on the Fungicidal Activity of Metallic MgO Nanoparticles and Macroscale MgO Against Soilborne Fungal Phytopathogens

Titanium dioxide nanoparticles elicited agro-morphological and physicochemical modifications in wheat plants to control Bipolaris sorokiniana

Effect of Fe3O4 and CuO Nanoparticles on Morphology, Genotoxicity, and miRNA Expression on Different Barley (Hordeum vulgare L.) Genotypes

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