Silicon dioxide nanoparticles ameliorate the phytotoxic hazards of aluminum in maize grown on acidic soil

Sousa, Andreia S. P.; Saleh, Ahmed M.; Habeeb, Talaat H.; Hassan, Yasser M.; Zrieq, Rafat; Wadaan, Mohammed A. M.; Hozzein, Wael N.; Selim, Samy; Matos, Manuela; AbdElgawad, Hamada

doi:10.1016/j.scitotenv.2019.133636

Cited by 131 publications

(39 citation statements)

References 66 publications

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“…Sousa et al found that Si NPs (4 mg/kg) alleviated the toxicity of Al to maize by activating the antioxidant defense systems; at the same time, Si NPs did not influence the accumulation of Al in maize [122]. These results are contradictory with the above findings, and the reason may be related to different concentrations or types of HM used in these studies.…”

Section: Siliconmentioning

confidence: 68%

Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview

et al. 2020

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Nanotechnology is playing a significant role in addressing a vast range of environmental challenges by providing innovative and effective solutions. Heavy metal (HM) contamination has gained considerable attention in recent years due their rapidly increasing concentrations in agricultural soil. Due to their unique physiochemical properties, nanoparticles (NPs) can be effectively applied for stress alleviation. In this review, we explore the current status of the literature regarding nano-enabled agriculture retrieved from the Web of Science databases and published from January 2010 to November 2020, with most of our sources spanning the past five years. We briefly discuss uptake and transport mechanisms, application methods (soil, hydroponic and foliar), exposure concentrations, and their impact on plant growth and development. The current literature contained sufficient information about NPs behavior in plants in the presence of pollutants, highlighting the alleviation mechanism to overcome the HM stress. Furthermore, we present a broad overview of recent advances regarding HM stress and the possible mechanism of interaction between NPs and HM in the agricultural system. Additionally, this review article will be supportive for the understanding of phytoremediation and micro-remediation of contaminated soils and also highlights the future research needs for the combined application of NPs in the soil for sustainable agriculture.

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Section: Siliconmentioning

confidence: 68%

Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview

et al. 2020

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“…Plants’ physiology, morphology and biochemistry are altered by abiotic stresses, resulting in reduced growth and economic output [ 18 , 93 , 104 ]. Thus, Si-NPs have been reported to serve indispensable roles by mitigating different abiotic stress-induced consequences [ 4 , 70 , 105 , 106 ]. For example, metal toxicity can be minimized and plant growth can be improved by the amendment of Si-rich materials in soils [ 18 , 93 ].…”

Section: Role Of Si and Si-nps In Abiotic Stress Tolerance In Plantsmentioning

confidence: 99%

“…Si treatment in rice induced resistance against pathogens and reduced blast disease [ 126 ]. In T. aestivum leaves, Si application inhibited the hyphae penetration of Pyricularia oryzae , while, in the absence of Si, fungal hyphae penetrated successfully [ 105 ]. Similarly, Si treatment in O. sativa reduced the infection and leaf lesions caused by Rhizoctonia solani and Pyricularia grisea [ 129 , 130 ].…”

Section: Role Of Si and Si-nps In Plant Biotic Stress Managementmentioning

confidence: 99%

Effects of Silicon and Silicon-Based Nanoparticles on Rhizosphere Microbiome, Plant Stress and Growth

Rajput

Minkina

Feizi

et al. 2021

Biology

120

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Silicon (Si) is considered a non-essential element similar to cadmium, arsenic, lead, etc., for plants, yet Si is beneficial to plant growth, so it is also referred to as a quasi-essential element (similar to aluminum, cobalt, sodium and selenium). An element is considered quasi-essential if it is not required by plants but its absence results in significant negative consequences or anomalies in plant growth, reproduction and development. Si is reported to reduce the negative impacts of different stresses in plants. The significant accumulation of Si on the plant tissue surface is primarily responsible for these positive influences in plants, such as increasing antioxidant activity while reducing soil pollutant absorption. Because of these advantageous properties, the application of Si-based nanoparticles (Si-NPs) in agricultural and food production has received a great deal of interest. Furthermore, conventional Si fertilizers are reported to have low bioavailability; therefore, the development and implementation of nano-Si fertilizers with high bioavailability could be crucial for viable agricultural production. Thus, in this context, the objectives of this review are to summarize the effects of both Si and Si-NPs on soil microbes, soil properties, plant growth and various plant pathogens and diseases. Si-NPs and Si are reported to change the microbial colonies and biomass, could influence rhizospheric microbes and biomass content and are able to improve soil fertility.

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“…Aluminum (Al 3+ ) toxicity is a major growth-limiting factor that restrains agronomic performance in acidic soils worldwide. About 25–80% of crop productivity loss is ascribed to Al effects [ 1 , 2 ]. In addition to the acidity that occurs naturally in soils, the use of nitrogen fertilizers also potentiates acidification processes through the conversion of N-ammonium into nitrate by soil bacteria, releasing hydrogen (H + ), reducing the pH of the soil, and increasing the availability of Al 3+ for plants [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhizae Mitigate Aluminum Toxicity and Regulate Proline Metabolism in Plants Grown in Acidic Soil

Alotaibi

Saleh

Sobrinho

et al. 2021

JoF

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Arbuscular mycorrhizal fungi (AMF) can promote plant growth and induce stress tolerance. Proline is reported to accumulate in mycorrhizal plants under stressful conditions, such as aluminum (Al) stress. However, the detailed changes induced in proline metabolism under AMF–plant symbiosis has not been studied. Accordingly, this work aimed to study how Al-stressed grass (barley) and legume (lotus) species respond to AMF inoculation at growth and biochemical levels. The associated changes in Al uptake and accumulation, the rate of photosynthesis, and the key enzymes and metabolites involved in proline biosynthesis and degradation pathways were studied. Soil contamination with Al induced Al accumulation in tissues of both species and, consequently, reduced plant growth and the rate of photosynthesis, while more tolerance was noticed in lotus. Inoculation with AMF significantly reduced Al accumulation and mitigated the negative impacts of Al on growth and photosynthesis in both species; however, these positive effects were more pronounced in barley plants. The mitigating action of AMF was associated with upregulation of proline biosynthesis through glutamate and ornithine pathways, more in lotus than in barley, and repression of its catabolism. The increased proline level in lotus was consistent with improved N metabolism (N level and nitrate reductase). Overall, this study suggests the role of AMF in mitigating Al stress, where regulation of proline metabolism is a worthy mechanism underlying this mitigating action.

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Silicon dioxide nanoparticles ameliorate the phytotoxic hazards of aluminum in maize grown on acidic soil

Cited by 131 publications

References 66 publications

Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview

Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview

Effects of Silicon and Silicon-Based Nanoparticles on Rhizosphere Microbiome, Plant Stress and Growth

Arbuscular Mycorrhizae Mitigate Aluminum Toxicity and Regulate Proline Metabolism in Plants Grown in Acidic Soil

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