Green Synthesis of Silver Nanoparticles Using Leaf Extract of Rosmarinus officinalis and Its Effect on Tomato and Wheat Plants

Farghaly, Fatma A.; Nafady, Nivien A.

doi:10.5539/jas.v7n11p277

Cited by 31 publications

(25 citation statements)

References 32 publications

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“…TEM was used to characterize the shape and size of AgNPs that were synthesized by the reduction of Ag + using O. arabicus leaf extract. The TEM images obviously showed that the synthesized AgNPs were spherical, in line with previous results 26,27 . The dispersion properties of the spherical particles can vary as per their size, exact shape, and composition 28 .…”

Section: Discussionsupporting

confidence: 90%

Biosynthesis and characterization of silver nanoparticles using Ochradenus arabicus and their physiological effect on Maerua oblongifolia raised in vitro

Shaikhaldein

Al‐Qurainy

Nadeem

et al. 2020

Sci Rep

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Silver nanoparticles (AgNPs) are presently the most commonly generated engineered nanomaterials and are found in a wide range of agro-commercial products. The present study was designed to synthesize AgNPs biologically using Ochradenus arabicus leaves and investigate their effect on the morphophysiological properties of Maerua oblongifolia raised in vitro. Physicochemical methods (ultraviolet–visible spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy were performed for characterization and for obtaining microphotographs of the AgNPs. Shoots of M. oblongifolia (2–3 cm) grown in Murashige and Skoog medium supplemented with different concentrations of AgNPs (0, 10, 20, 30, 40, or 50 mg L−1) were used. Following 6 weeks of in vitro shoot regeneration, the shoot number, shoot length, leaf number, fresh weight, dry weight, chlorophyll content, total protein, proline level, and antioxidant enzyme activities of the plants were quantified. We found that 20 mg L−1 AgNPs increased the shoot number, shoot length, fresh weight, dry weight, and chlorophyll content of the plants. The maximum total protein was recorded in plants that were administered the lowest dose of AgNPs (10 mg L−1), while high concentrations of AgNPs (40 and 50 mg L−1) increased the levels of proline and the enzymes superoxide dismutase and catalase. Our results indicate that green-synthesized AgNPs may be of agricultural and medicinal interest owing to their effects on plants in vitro.

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Section: Discussionsupporting

confidence: 90%

Biosynthesis and characterization of silver nanoparticles using Ochradenus arabicus and their physiological effect on Maerua oblongifolia raised in vitro

Shaikhaldein

Al‐Qurainy

Nadeem

et al. 2020

Sci Rep

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“…Hence, we selected methanol for extraction of chlorophyll and total carotenoids in a one-step extraction with good recovery; besides methanol is easier to handle. Mazumdar [34] reported that using 1000 µg/ ml AgNPs in Hoagland's nutrient solution caused a significant inhibition in both chlorophyll types and total carotenoids in Vigna radiata and Bactris campestris, which is in agreement with our findings There are several reports that AgNPs inhibit plant growth by inhibition of chlorophyll formation and total soluble protein [70,71] . However, Qian [12] showed that AgNPs inhibited the growth of A. thaliana by disruption of the thylakoid membrane structure and thereby decreased the chlorophyll concentration.…”

Section: Sift Desksupporting

confidence: 92%

Biochemical changes in sunflower plant exposed to silver nanoparticles / silver ions

Gooneratne¹,

Saleeb²,

Robinson³

et al. 2019

SDRP-JFST

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When soil is contaminated with silver (Ag), plants take up Ag and is concentrated in roots and leaves, with its effects reflected in crop health and yield. This study investigated the toxicity of silver nanoparticles (AgNPs) and silver nitrate (AgNO 3 as Ag +) to sunflower seeds grown in soils amended with 150 mg/kg of Ag either as AgNPs or AgNO 3. Exposure of the sunflower seeds to soils amended with Ag increased plant lipid peroxidation, activities of antioxidants enzymes (catalase, superoxide dismutase, glutathione-S-transferase), peroxidases (glutathione peroxidase pyrogallol peroxidase, guaiacol peroxidase), oxidases (ascorbate oxidase), urease, total phenolic compounds, vitamins (retinols, alpha-tocopherol and L-ascorbic acid) but inhibited chlorophyll, total carotenoids, total soluble carbohydrates, phenolic compounds and total soluble proteins. In general, AgNO 3 increased the above-mentioned parameters in sunflower more than did AgNPs, except for the tested vitamins, which were more affected by AgNPs. The results showed that Ag accumulation in the root > leaf > stem and human food security risk is enhanced in sunflower seeds exposed to Ag compounds.

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“…The literature offers information about investigations performed with metal NPs on wheat samples such as Ti, Cu, Zn, Ce, and Ag. The majority of them were focused on the accumulation, uptake, and effect of Ti NPs on the growth of root and shoot [70][71][72][73][74], on the performance of wheat in the presence of CuO and ZnO in nano and non-nanometric forms [64] and nAl 2 O 3 [75], the effect on seed germination [63,76], and toxicity of CeO 2 NPs [77,78]. There are no studies following the modification of the total elemental content in wheat while the samples are treated with some NPs.…”

Section: Element Content and Enrichment Factor In Wheatmentioning

confidence: 99%

The Impact Assessment of CuO Nanoparticles on the Composition and Ultrastructure of Triticum aestivum L.

Lung

Opriş

Soran

et al. 2021

IJERPH

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In the present study, the effects of copper oxide nanoparticles (CuO NPs) on bioactive compounds, the ultrastructural modifications which can occur, and elemental content of wheat were investigated. Changes in the wheat plants grown in presence or absence of CuO NPs were estimated. The application of CuO NPs decreased the amounts of chlorophylls and carotenoids and increased the amounts of polyphenols and antioxidant capacity. Ultrastructural analysis showed that the plants treated with CuO NPs were negatively affected. Soil amending completely inhibited the accumulation of seventeen elements, while K, Br, Al, and Zn were accumulated and Cl, Na, Ba, and Sr content decreased in wheat samples, regardless of the type of NPs applied. The application of chemically obtained NPs induced the most significant changes, completely blocking the assimilation of Fe, Mo, As, Sb, and Sm, and favoring much higher accumulation of Br than biogenic NPs. The decrease in chlorophylls and carotenoids is correlated with increase in antioxidant capacity, and occurs with increase of Mo, Al, Mg, K, Zn, and Ca content. The behavior of total polyphenols is correlated with Br content, and antagonist to Al behavior. From the point of view of bioactive compounds, the most affected plants were those that grew in the presence of CuO-NP-cel, while from the point of view of elementary analysis, the most affected plants were those grown in the presence of CuO-NP. By corroborating the obtained results, it was found that the CuO NPs have a negative effect on wheat plants.

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Green Synthesis of Silver Nanoparticles Using Leaf Extract of Rosmarinus officinalis and Its Effect on Tomato and Wheat Plants

Cited by 31 publications

References 32 publications

Biosynthesis and characterization of silver nanoparticles using Ochradenus arabicus and their physiological effect on Maerua oblongifolia raised in vitro

Biosynthesis and characterization of silver nanoparticles using Ochradenus arabicus and their physiological effect on Maerua oblongifolia raised in vitro

Biochemical changes in sunflower plant exposed to silver nanoparticles / silver ions

The Impact Assessment of CuO Nanoparticles on the Composition and Ultrastructure of Triticum aestivum L.

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