Effects of Chitosan–PVA and Cu Nanoparticles on the Growth and Antioxidant Capacity of Tomato under Saline Stress

Hernández-Hernández, Hipólito; González-Morales, Susana; Benavides-Mendoza, Adalberto; Ortega-Ortíz, Hortensia; Cadenas‐Pliego, Gregorio; Juárez-Maldonado, Antonio

doi:10.3390/molecules23010178

Cited by 124 publications

(65 citation statements)

References 51 publications

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“…Similar effects have been reported for the application of Cu NPs in tomato: foliar application increased the content of phenols, β-carotene, and vitamin C, and also increased antioxidant capacity [12]. Application via root increased the content of lycopene and vitamin C [13]. The application of Cu NPs also induced the accumulation of antioxidants as proline in Triticum aestivum L. [15].…”

Section: Resultssupporting

confidence: 75%

“…The Cu NPs were separated by centrifugation, washed with distilled water and methanol, and dried at 70 • C in a vacuum oven. The average particle size was calculated using the Debye-Scherrer equation, yielding a value of 48.3 nm [13,14]. Transmission electron microscopy (TEM) (FEI Titan high-resolution electron microscope, Thermo Scientific, Waltham, MA, USA) micrographs showed nanoparticles of spherical morphology with particle diameters between 20 nm and 50 nm ( Figure 2).…”

Section: Treatmentsmentioning

confidence: 99%

“…Specifically, foliar application of Cu NPs increased the content of biocompounds including phenols, β-carotene, and vitamin C in tomato [12]. On the other hand, the application of Cu NPs via the root system increased the content of biocompounds, such as lycopene and vitamin C, but also increased the enzymatic activity of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione peroxidase (GPX), and phenylalanine ammonia lyase (PAL) in tomato [13]. In Vigna radiata, an increase was observed in chlorophyll content, enzymatic activity, photosynthetic activity, and assimilation of nitrogen (N) by application of Cu NPs [14].…”

Section: Introductionmentioning

confidence: 99%

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Foliar Application of Cu Nanoparticles Modified the Content of Bioactive Compounds in Moringa oleifera Lam

Juárez-Maldonado

Ortega-Ortíz²,

Cadenas‐Pliego³

et al. 2018

Agronomy

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Moringa oleifera Lam is a plant that has recently gained importance as a food because of its nutritional value and bioactive compound content and because practically all the organs are usable. The use of nanoparticles has appeared as an alternative to increase bioactive compounds in plants. The goal of this work was to determine if the application of copper nanoparticles would increase the content of bioactive compounds and antioxidant capacity in M. oleifera. Copper (Cu) nanoparticles were applied to the leaves at four different times throughout crop growth. The biocompounds were analyzed after the second, third, and fourth applications. The results show that application of Cu nanoparticles has a beneficial effect on the accumulation of bioactive compounds in M. oleifera leaves. In addition, the antioxidant capacity and carotenoid and chlorophyll contents in the leaves of M. oleifera increased after Cu nanoparticles application. The same effect was not observed in the fruit of M. oleifera. Here, the bioactive compound contents diminished. Therefore, the use of Cu nanoparticles can be an important alternative to improve the quality of this plant, particularly that of the leaves.

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Section: Resultssupporting

confidence: 75%

Section: Treatmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Foliar Application of Cu Nanoparticles Modified the Content of Bioactive Compounds in Moringa oleifera Lam

Juárez-Maldonado

Ortega-Ortíz²,

Cadenas‐Pliego³

et al. 2018

Agronomy

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“…The following elements were determined: K, Na, and Cu. For this process, one gram of each sample was digested with HNO 3 at 400 • C following the method of Hernández-Hernández et al [21].…”

Section: Mineral Content In Fruitmentioning

confidence: 99%

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

Ortega-Ortíz²,

et al. 2018

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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.

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“…In the agriculture industry, they are increasingly being used as components of new fertilizers [3], plant protection products [4], herbicides [5], and preparations for prolonging cut flower durability [6]. Recently, nanoparticles and nanomaterials have been suggested as potential biostimulators that might improve plant propagation and growth [7,8] and improve plant resistance to stress [9,10]. Using nanoparticles could bring numerous benefits to agriculture and horticulture, but also involves some risks related to their not yet fully recognized environmental impacts [11].…”

Section: Introductionmentioning

confidence: 99%

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

et al. 2019

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Nanoparticles exhibit unique biological activities and may serve as novel plant growth stimulators. This research consisted of a two-year pot experiment designed to find out if silver nanoparticles (AgNPs) might be used in the cultivation of Oriental lilies. In the first year, we evaluated the effects of various concentrations of AgNPs (0, 25, 50, 100, and 150 ppm) and their application methods (pre-planting bulb soaks, foliar sprays, and substrate drenches) on the growth and flowering of Lilium cv. Mona Lisa. In the second year, we evaluated the effects of soaking the bulbs of cv. Little John in the same concentration of AgNP solution on plant morphological features, leaf content of photosynthetic pigments, basic macronutrients, and complex biomolecules with the use of the Fourier-transform infrared spectroscopy (FTIR). Soaking the bulbs in a nanoparticle solution turned out to be the most effective strategy for growth and flowering promotion. AgNPs stimulated plant growth, as manifested by enhanced accumulation of leaf and bulb biomass and accelerated flowering. Moreover, plants treated with silver nanoparticles showed higher leaf greenness index, formed more flowers, and flowered longer. At 100 ppm AgNPs, the leaves accumulated the highest content of chlorophyll a, chlorophyll b, and carotenoids, and were the richest in potassium, calcium, and sulfur. The FTIR spectra did not show any changes in absorbance intensity and chemical composition in the leaves from AgNP-treated bulbs.

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Effects of Chitosan–PVA and Cu Nanoparticles on the Growth and Antioxidant Capacity of Tomato under Saline Stress

Cited by 124 publications

References 51 publications

Foliar Application of Cu Nanoparticles Modified the Content of Bioactive Compounds in Moringa oleifera Lam

Foliar Application of Cu Nanoparticles Modified the Content of Bioactive Compounds in Moringa oleifera Lam

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

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

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