Effect of Silver Nanoparticles on Growth of Wheat Under Heat Stress

Iqbal, Muhammad Mazhar; Raja, Naveed Iqbal; Mashwani, Zia‐ur‐Rehman; Hussain, Mubashir; Ejaz, Muhammad; Yasmeen, Farhat

doi:10.1007/s40995-017-0417-4

Cited by 207 publications

(89 citation statements)

References 42 publications

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“…Based on the obtained results, cyanobacterium-based Ag-NPs seem to be a good candidate for efficient biocontrol of M. javanica infecting faba bean plant as well as a bio-stimulant material for plant growth. A similar finding has been reported by Iqbal et al [25] and Nour El-Deen and El-Deeb [20]. The biostimulant effect by both ACE and cyanobacteriumbased Ag-NPs on faba bean growth parameters is possibly due to micronutrients and many organic compounds such as auxins, gibberellins, and precursor of ethylene and betaine produced by algal cells [56].…”

Section: Bio-stimulant Effect Of Cyanobacterium-based Ag-nps On Faba supporting

confidence: 84%

“…In this study, exposure to plant-mediated Ag-NPs resulted in a significant reduction in plant elongation, fresh weight of shoot and root, and total chlorophyll content of seedling of Lupinus termis L. Moreover, 0.5 mg/l of Ag-NPs decreased carbohydrates and protein contents and increased accumulation of proline in seedlings [24]. On the contrary, 50 and 75 mg/l of biologically synthesized Ag-NPs protected wheat plants against heat stress and improved plant growth and biomass as compared to control [25]. A similar inductive effect on growth parameters and chemically valuable phytochemical production has been reported for Fenugreek (Trigonella foenum-graecum L.) by soaking the seedling in a concentration of 1 μg/ml of Ag-NPs for 5 days [26].…”

Section: Introductionmentioning

confidence: 95%

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Green production of silver nanoparticles, evaluation of their nematicidal activity against Meloidogyne javanica and their impact on growth of faba bean

Hamed

Hagag

El-Raouf

2019

Beni-Suef Univ J Basic Appl Sci

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Background: Cyanobacterium-based silver nanoparticles are considered not only as an efficient nano-nematicide but also as a bio-stimulant material for plant growth. They could be employed as a part of an integrated program for controlling some plant diseases. Results: In this study, silver nanoparticles (Ag-NPs) were biosynthesized from aqueous extract of the cyanobacterium, Nostoc sp. PCC7524. Full characterization of the biosynthesized Ag-NPs was monitored by UV-vis spectroscopy, transmission electron microscopy, X-ray diffraction pattern, Zeta sizer, and Fourier transform infrared spectroscopy. In vitro assay against the root-knot nematode Meloidogyne javanica showed that Ag-NPs significantly decreased egg hatching of M. javanica at different applied concentrations (3, 6, 12, 25, and 50%, v/v). Fifty percent of Ag-NPs induced the highest reduction percent (94.66%). Moreover, Ag-NPs and AgNO 3 significantly increased the percentages of larval mortality of the second-stage juveniles (J 2) with concentration and time-dependent responses. Ag-NPs or AgNO 3 at 2.4 ml/l, 24 h, completely inhibited the growth of J 2 compared to 23% inhibition using aqueous cyanobacterial extract (ACE). In vivo effect of Ag-NPs on faba bean-infected plant under greenhouse conditions was achieved by treating soil with three different concentrations of 1, 2, and 3 ml/kg soil over two consecutive seasons. Ag-NPs significantly reduced root galling from 39.6 to 78.7% and J 2 population in the soils from 32.2% to 86.7% in the 2018 season and from 21.9 to 78.1% and 40.0 to 81.0% in the 2019 season, respectively. Moreover, 3 ml/kg soil of Ag-NP treatment showed statistically comparable effects to that of vydate nematicide but with remarkable enhancement of faba bean growth parameters as compared to those of vydate or AgNO 3 treatments in the two seasons. Conclusions: The considerable in vitro and in vivo nematicidal potential of the cyanobacterium-based Ag-NPs, besides their bio-stimulant effect on plant growth, makes them feasible for the biological control of M. javanica.

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Section: Bio-stimulant Effect Of Cyanobacterium-based Ag-nps On Faba supporting

confidence: 84%

Section: Introductionmentioning

confidence: 95%

Green production of silver nanoparticles, evaluation of their nematicidal activity against Meloidogyne javanica and their impact on growth of faba bean

Hamed

Hagag

El-Raouf

2019

Beni-Suef Univ J Basic Appl Sci

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“…Gupta et al [17] reported AgNP-stimulated growth improvement in Oryza sativa seedlings accompanied by elevated levels of catalase, ascorbate peroxidase, and glutathione reductase, and decreased amounts of lipid peroxidation and hydrogen peroxide content. By enhancing the activity of antioxidant enzymes, the nanoparticles probably help to reduce oxidative stress and may reinforce plant responses to other types of stresses, such as salinity or high temperature [48,49].…”

Section: Discussionmentioning

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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“…Wheat and its products are used in various countries of the world including Pakistan, India, Sri Lanka, Bangladesh, and Nepal. Among all other abiotic stresses, drought is one of the destructive natural disasters for terrestrial ecosystems with the characteristics of severe influence, high frequency, and extensive coverage [6,8]. It indirectly results in economic losses worldwide.…”

Section: Introductionmentioning

confidence: 99%

Foliar applications of bio-fabricated selenium nanoparticles to improve the growth of wheat plants under drought stress

Ikram

Raja

Javed

et al. 2020

Green Processing and Synthesis

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The present study was aimed to biosynthesize selenium nanoparticles (SeNPs) and assess their foliar applications to improve the growth of wheat plants under controlled irrigation and drought stress. Bud aqueous extract of Allium sativum L. was used as a reducing and stabilizing agent of SeNPs followed by their optical and morphological characterization by using ultraviolet-visible spectroscopy, scanning electron microscopy, Fourier-transform infrared, and energy dispersive X-ray analysis. Various concentrations of SeNPs (10, 20, 30, and 40 mg/L) were applied exogenously to drought-tolerant (V1) and drought-susceptible (V2) wheat varieties at the trifoliate stage. Under the positive control conditions, plants were irrigated with 450 mL of water/pot (100% field capacity); and under water-deficit environment, plants were irrigated with 160 mL of water/pot (35% field capacity). Remarkable increase in plant height, shoot length, shoot fresh weight, shoot dry weight, root length, root fresh weight, root dry weight, leaf area, leaf number, and leaf length has been observed when 30 mg/L concentration of SeNPs was used. However, the plant morphological parameters decreased gradually at higher concentrations (40 mg/L) in both selected wheat varieties. Therefore, 30 mg/L concentration of SeNPs was found most preferable to enhance the growth of selected wheat varieties under normal and water-deficient conditions.

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Effect of Silver Nanoparticles on Growth of Wheat Under Heat Stress

Cited by 207 publications

References 42 publications

Green production of silver nanoparticles, evaluation of their nematicidal activity against Meloidogyne javanica and their impact on growth of faba bean

Green production of silver nanoparticles, evaluation of their nematicidal activity against Meloidogyne javanica and their impact on growth of faba bean

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

Foliar applications of bio-fabricated selenium nanoparticles to improve the growth of wheat plants under drought stress

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