The use of metallic oxide nanoparticles to enhance growth of tomatoes and eggplants in disease infested soil or soilless medium

Elmer, Wade H.; White, Jason C.

doi:10.1039/c6en00146g

Cited by 285 publications

(205 citation statements)

References 29 publications

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“…Copper oxide nanoparticles (CuONPs) are globally produced (Keller et al 2013) for industrial applications in sensors, catalysts, solar energy conversion, electronic printing, surfactants, and antimicrobials (Bondarenko et al 2012;Wang et al 2013;Ahamed et al 2013). They also have potential use in agriculture, as a nutrient source or as a pesticide (Monreal et al 2015;Elmer and White 2016;Dimkpa and Bindraban 2017;Rodrigues et al 2017). Application of these products in agriculture may contribute to their environmental accumulation.…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere interactions between copper oxide nanoparticles and wheat root exudates in a sand matrix: Influences on copper bioavailability and uptake

McManus

Hortin

Anderson

et al. 2018

Enviro Toxic and Chemistry

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The impact of copper oxide nanoparticles (CuONPs) on crop production is dependent on the biogeochemistry of Cu in the rooting zone of the plant. The present study addressed the metabolites in wheat root exudates that increased dissolution of CuONPs and whether solubility correlated with Cu uptake into the plant. Bread wheat (Triticum aestivum cv. Dolores) was grown for 10 d with 0 to 300 mg Cu/kg as CuONPs in sand, a matrix deficient in Fe, Zn, Mn, and Cu for optimum plant growth. Increased NP doses enhanced root exudation, including the Cu-complexing phytosiderophore, 2'-deoxymugineic acid (DMA), and corresponded to greater dissolution of the CuONPs. Toxicity, observed as reduced root elongation, was attributable to a combination of CuONPs and dissolved Cu complexes. Geochemical modeling predicted that the majority of the solution phase Cu was complexed with citrate at low dosing or DMA at higher dosing. Altered biogeochemistry within the rhizosphere correlated with bio-responses via exudate type, quantity, and metal uptake. Exposure of wheat to CuONPs led to dose-dependent decreases in Fe, Ca, Mg, Mn, and K in roots and shoots. The present study is relevant to growth of a commercially important crop, wheat, in the presence of CuONPs as a fertilizer, fungicide, or pollutant. Environ Toxicol Chem 2018;37:2619-2632. © 2018 SETAC.

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Section: Introductionmentioning

confidence: 99%

Rhizosphere interactions between copper oxide nanoparticles and wheat root exudates in a sand matrix: Influences on copper bioavailability and uptake

McManus

Hortin

Anderson

et al. 2018

Enviro Toxic and Chemistry

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“…In a soil-based study, foliar exposure to nano Mn (0.1-1 mg/L) under Fusarium disease stress in soil increased tomato fruit yield by 6.2%, when compared to bulk Mn, which increased fruit yield by 31% and Mn salt, which had no effect. In contrast, eggplant fruit yield was increased 22% by nano Mn, reduced 6.6% by bulk Mn and unaffected by Mn salt when compared to control plants [15]. In other studies, nano Mn (500 mg/L) increased watermelon fruit yield by about 24 and 17.5%, dependent on whether the soil was infested or not with soil-borne disease pathogens.…”

Section: Effect Of Mn Type On the Vegetative And Reproductive Growth mentioning

confidence: 69%

“…However, the literature contains very few studies that are focused on nano-Mn behavior in plant systems, particularly when compared to the number of reports on nano-ZnO, nano-CuO, or nano FeO [9][10][11]14]. The few published studies show that nano Mn treatment resulted in an increase in mung bean growth, 52% and 38%, for root and shoot [3]; a 22% increase in eggplant yield [15]; non-significant effects on root elongation of White Mustard [16]; no effect on lettuce germination, but a dose-dependent increase in plant root length [17]; and, suppression of disease progression over time in watermelon that was not accompanied by significant yield increase [18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Manganese Nanoparticle Exposure on Nutrient Acquisition in Wheat (Triticum aestivum L.)

et al. 2018

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Nanoparticles are used in a variety of products, including fertilizer-nutrients and agro-pesticides. However, due to heightened reactivity of nano-scale materials, the effects of nanoparticle nutrients on crops can be more dramatic when compared to non nano-scale nutrients. This study evaluated the effect of nano manganese-(Mn) on wheat yield and nutrient acquisition, relative to bulk and ionic-Mn. Wheat was exposed to the Mn types in soil (6 mg/kg/plant), and nano-Mn was repeated in foliar application. Plant growth, grain yield, nutrient acquisition, and residual soil nutrients were assessed. When compared to the control, all Mn types significantly (p < 0.05) reduced shoot N by 9–18%. However, nano-Mn in soil exhibited other subtle effects on nutrient acquisition that were different from ionic or bulk-Mn, including reductions in shoot Mn (25%), P (33%), and K (7%) contents, and increase (30%) in soil residual nitrate-N. Despite lowering shoot Mn, nano-Mn resulted in a higher grain Mn translocation efficiency (22%), as compared to salt-Mn (20%), bulk-Mn (21%), and control (16%). When compared to soil, foliar exposure to nano-Mn exhibited significant differences: greater shoot (37%) and grain (12%) Mn contents; less (40%) soil nitrate-N; and, more soil (17%) and shoot (43%) P. These findings indicate that exposure to nano-scale Mn in soil could affect plants in subtle ways, differing from bulk or ionic-Mn, suggesting caution in its use in agriculture. Applying nano Mn as a foliar treatment could enable greater control on plant responses.

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“…These results are important for future field applications where low amounts of TDNS can be used under controlled conditions on young plants, thereby reducing the risk of human and environmental exposure to nanostructures . The study showed that TDNS can protect faba bean against BBSV by direct effects on the virus or by improving the plant's own defenses through induced resistance, or by both mechanisms together.…”

Section: Discussionmentioning

confidence: 86%

Antiviral activity of titanium dioxide nanostructures as a control strategy for broad bean strain virus in faba bean

Elsharkawy

Derbalah

2018

Pest Management Science

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The use of metallic oxide nanoparticles to enhance growth of tomatoes and eggplants in disease infested soil or soilless medium

Abstract: Foliar application of CuO nanoparticles applied to tomato and eggplant grown in pathogen infested soil had more yield than controls.

Cited by 285 publications

References 29 publications

Rhizosphere interactions between copper oxide nanoparticles and wheat root exudates in a sand matrix: Influences on copper bioavailability and uptake

Rhizosphere interactions between copper oxide nanoparticles and wheat root exudates in a sand matrix: Influences on copper bioavailability and uptake

Effects of Manganese Nanoparticle Exposure on Nutrient Acquisition in Wheat (Triticum aestivum L.)

Antiviral activity of titanium dioxide nanostructures as a control strategy for broad bean strain virus in faba bean

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