Silicon nanoparticles: Synthesis, uptake and their role in mitigation of biotic stress

Naidu, Shrishti; Pandey, Jyotsna L; Mishra, Lokesh C.; Chakraborty, Amrita; Roy, Amit; Singh, Ishwar; Singh, Archana

doi:10.1016/j.ecoenv.2023.114783

Cited by 18 publications

(7 citation statements)

References 179 publications

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“…Furthermore, Zhao et al confirmed that FITC-labeled mesoporous silica nanoparticles were rapidly absorbed by the treated leaves and then transported to various plant sections, such as the petiole, stem, other leaves, and roots. Considering the size of the SiO 2 NPs used in our experiment and their likely entry points into plant tissues, it is conceivable that they access the plant via stomata before moving to the mesophyll …”

Section: Resultsmentioning

confidence: 99%

“…Silicon (Si), the earth’s second most abundant element, is known to mitigate the adverse effects of salinity stress on plants by regulating physiological and biochemical processes. − For example, Muhammad et al found that spraying petunia plants with a 120 mg L –1 Si solution notably improved their photosynthetic performance and antioxidant capacity under salinity levels of 30–90 mM. While earlier studies on the role of Si in alleviating salinity stress in plants have predominantly utilized dissolved Si, there is growing interest in the application of SiO 2 NPs due to their unique properties, such as mesoporous structure, low toxicity, and facilitated nutrient availability. − Currently, SiO 2 NPs have emerged as a promising strategy for enhancing nutrient uptake, photosynthesis, and antioxidant enzyme activities in plants under various stressors, including salinity. − Furthermore, SiO 2 NPs have been found to promote root growth and development, potentially improving plants’ capacity to endure salt stress . Further investigation is required to assess the comparative efficacy of dissolved Si and nanoparticulate Si in alleviating salinity stress and to comprehend the underlying mechanisms involved.…”

Section: Introductionmentioning

confidence: 99%

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Comparing the Potential of Silicon Nanoparticles and Conventional Silicon for Salinity Stress Alleviation in Soybean (Glycine max L.): Growth and Physiological Traits and Rhizosphere/Endophytic Bacterial Communities

Wang,

Zhang,

et al. 2024

J. Agric. Food Chem.

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In this study, 20-day-old soybean plants were watered with 100 mL of 100 mM NaCl solution and sprayed with silica nanoparticles (SiO 2 NPs) or potassium silicate every 3 days over 15 days, with a final dosage of 12 mg of SiO 2 per plant. We assessed the alterations in the plant's growth and physiological traits, and the responses of bacterial microbiome within the leaf endosphere, rhizosphere, and root endosphere. The result showed that the type of silicon did not significantly impact most of the plant parameters. However, the bacterial communities within the leaf and root endospheres had a stronger response to SiO 2 NPs treatment, showing enrichment of 24 and 13 microbial taxa, respectively, compared with the silicate treatment, which led to the enrichment of 9 and 8 taxonomic taxa, respectively. The rhizosphere bacterial communities were less sensitive to SiO 2 NPs, enriching only 2 microbial clades, compared to the 8 clades enriched by silicate treatment. Furthermore, SiO 2 NPs treatment enriched beneficial genera, such as Pseudomonas, Bacillus, and Variovorax in the leaf and root endosphere, likely enhancing plant growth and salinity stress resistance. These findings highlight the potential of SiO 2 NPs for foliar application in sustainable farming by enhancing plant-microbe interactions to improve salinity tolerance.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparing the Potential of Silicon Nanoparticles and Conventional Silicon for Salinity Stress Alleviation in Soybean (Glycine max L.): Growth and Physiological Traits and Rhizosphere/Endophytic Bacterial Communities

Wang,

Zhang,

et al. 2024

J. Agric. Food Chem.

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“…Numerous instances have reported the involvement of Si/SiO 2 NPs in bolstering plant defenses against biotic stresses. This involvement includes improving plant tolerance through physical reinforcement, the synthesis of secondary compounds, and the alteration of molecular expression [ 137 ]. These findings suggest promising and sustainable prospects for Si-based applications in agriculture [ 138 ].…”

Section: Metal(loid) Defense Against Biotic Stressmentioning

confidence: 99%

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Zhang,

Liu,

Song

et al. 2024

Plants

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Plants, as sessile organisms, uptake nutrients from the soil. Throughout their whole life cycle, they confront various external biotic and abiotic threats, encompassing harmful element toxicity, pathogen infection, and herbivore attack, posing risks to plant growth and production. Plants have evolved multifaceted mechanisms to cope with exogenous stress. The element defense hypothesis (EDH) theory elucidates that plants employ elements within their tissues to withstand various natural enemies. Notably, essential and non-essential trace metals and metalloids have been identified as active participants in plant defense mechanisms, especially in nanoparticle form. In this review, we compiled and synthetized recent advancements and robust evidence regarding the involvement of trace metals and metalloids in plant element defense against external stresses that include biotic stressors (such as drought, salinity, and heavy metal toxicity) and abiotic environmental stressors (such as pathogen invasion and herbivore attack). We discuss the mechanisms underlying the metals and metalloids involved in plant defense enhancement from physiological, biochemical, and molecular perspectives. By consolidating this information, this review enhances our understanding of how metals and metalloids contribute to plant element defense. Drawing on the current advances in plant elemental defense, we propose an application prospect of metals and metalloids in agricultural products to solve current issues, including soil pollution and production, for the sustainable development of agriculture. Although the studies focused on plant elemental defense have advanced, the precise mechanism under the plant defense response still needs further investigation.

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“…In addition to the direct pesticidal effects, SiNPs treatment with seed priming and foliar application can enhance seed germination, and plant growth and yield under different biotic stresses ( Figure 4 ; Naidu et al., 2023 ; Saw et al., 2023 ). Seed priming with SiNPs is an effective agronomic approach in enhancing seed germination and plant growth under the infection of pathogens.…”

Section: Sinps and Biotic Stressmentioning

confidence: 99%

“…SiNPs exhibit significant advantages over bulk Si sources including high surface/volume ratio, distinct charge properties and improved plant bioavailability ( Jeelani et al., 2020 ). The characteristics and structures of SiNPs are commonly determined by the synthesizing process, which can be classified into physical, chemical, and biological synthesis (green synthesis), depending on the driving force ( Naidu et al., 2023 ). The green synthesis of SiNPs with agricultural wastes as raw materials is gaining growing attention owing to its significant applicability in recycling and sustainable agricultural production ( Mahawar et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Silicon nanoparticles in sustainable agriculture: synthesis, absorption, and plant stress alleviation

Yan,

Huang,

Zhao

et al. 2024

Front. Plant Sci.

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Silicon (Si) is a widely recognized beneficial element in plants. With the emergence of nanotechnology in agriculture, silicon nanoparticles (SiNPs) demonstrate promising applicability in sustainable agriculture. Particularly, the application of SiNPs has proven to be a high-efficiency and cost-effective strategy for protecting plant against various biotic and abiotic stresses such as insect pests, pathogen diseases, metal stress, drought stress, and salt stress. To date, rapid progress has been made in unveiling the multiple functions and related mechanisms of SiNPs in promoting the sustainability of agricultural production in the recent decade, while a comprehensive summary is still lacking. Here, the review provides an up-to-date overview of the synthesis, uptake and translocation, and application of SiNPs in alleviating stresses aiming for the reasonable usage of SiNPs in nano-enabled agriculture. The major points are listed as following: (1) SiNPs can be synthesized by using physical, chemical, and biological (green synthesis) approaches, while green synthesis using agricultural wastes as raw materials is more suitable for large-scale production and recycling agriculture. (2) The uptake and translocation of SiNPs in plants differs significantly from that of Si, which is determined by plant factors and the properties of SiNPs. (3) Under stressful conditions, SiNPs can regulate plant stress acclimation at morphological, physiological, and molecular levels as growth stimulator; as well as deliver pesticides and plant growth regulating chemicals as nanocarrier, thereby enhancing plant growth and yield. (4) Several key issues deserve further investigation including effective approaches of SiNPs synthesis and modification, molecular basis of SiNPs-induced plant stress resistance, and systematic effects of SiNPs on agricultural ecosystem.

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Silicon nanoparticles: Synthesis, uptake and their role in mitigation of biotic stress

Cited by 18 publications

References 179 publications

Comparing the Potential of Silicon Nanoparticles and Conventional Silicon for Salinity Stress Alleviation in Soybean (Glycine max L.): Growth and Physiological Traits and Rhizosphere/Endophytic Bacterial Communities

Comparing the Potential of Silicon Nanoparticles and Conventional Silicon for Salinity Stress Alleviation in Soybean (Glycine max L.): Growth and Physiological Traits and Rhizosphere/Endophytic Bacterial Communities

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Silicon nanoparticles in sustainable agriculture: synthesis, absorption, and plant stress alleviation

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