Silicon and iron nanoparticles protect rice against lead (Pb) stress by improving oxidative tolerance and minimizing Pb uptake

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 12, 2024

Abstract Lead (Pb) is toxic to the development and growth of rice plants. Nanoparticles (NPs) have been considered one efficient remediation techniques mitigate Pb stress in Therefore, a study was carried out examine underlying mechanism iron (Fe) silicon (Si) nanoparticle-induced toxicity alleviation seedlings. Si–NPs (2.5 mM) Fe-NPs (25 mg L −1 ) were applied alone combination plants grown without (control; no stress) with (100 µM) concentration. Our results revealed that severely affected all growth-related traits, such as inhibited root fresh weight (42%), shoot length (24%), chlorophyll b contents (26%). Moreover, substantial amount translocated above-ground parts plants, which caused disturbance antioxidative enzyme activities. However, synergetic use Fe- reduced upper part by 27%. It lethal impact on roots shoots parameters increasing (40%), (48%), (31%). Both Si Fe–NPs synergistic application significantly elevated superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), glutathione (GSH) concentrations 114%, 186%, 135%, 151%, respectively, compared subjected alone. The resulted several cellular abnormalities altered expression levels metal transporters antioxidant genes. We conclude can be deemed favorable, environmentally promising, cost-effective for reducing deadliness crops reclaiming Pb-polluted soils.

Language: Английский

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Silicon-mediated modulation of maize growth, metabolic responses, and antioxidant mechanisms under saline conditions

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: Jan. 2, 2025

This study explored how exogenous silicon (Si) affects growth and salt resistance in maize. The maize was cultivated sand-filled pots, incorporating varied stress (NaCl) treatments. Silicon applied at 0, 2, 4, 6, 8 mM, induced using 60 and120 mM concentrations. Soil salinity triggers a range of physiochemical abnormalities, often leading to arrest and, eventually, the demise susceptible plants. significantly reduced total chlorophyll content (12.58–33.14%), antioxidant enzymes, notably SOD (32–46%), POD (10.33–18.48%), CAT (10.05–13.19%). In contrast, increased secondary metabolites, including phenols (49.11–66.35%.), flavonoids (220.99–280.36%), anthocyanin (50.04–58.6%). Adding under absorption Na+ by 6.69%, 20.7%, 41.12%, 34.28%, respectively, compared their respective controls. Additionally, applying Si enhanced enzymes such as (50.57%), (15.58%), (10.06%) ratio (21.32%). application positively impacted nearly all physiological features, indicating it helps mitigate against salinity. achieved regulating various indicators, where anthocyanin, ascorbic acid, phenols, flavonoids, increased.

Language: Английский

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Alleviated lead toxicity in rice plant by co-augmented action of genome doubling and TiO2 nanoparticles on gene expression, cytological and physiological changes

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 911, P. 168709 - 168709

Published: Nov. 21, 2023

Language: Английский

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

Plants, Journal Year: 2024, Volume and Issue: 13(2), P. 313 - 313

Published: Jan. 20, 2024

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

Language: Английский

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Silicon Dioxide Nanoparticles-Based Amelioration of Cd Toxicity by Regulating Antioxidant Activity and Photosynthetic Parameters in a Line Developed from Wild Rice

Plants, Journal Year: 2024, Volume and Issue: 13(12), P. 1715 - 1715

Published: June 20, 2024

An extremely hazardous heavy metal called cadmium (Cd) is frequently released into the soil, causing a considerable reduction in plant productivity and safety. In an effort to reduce toxicity of Cd, silicon dioxide nanoparticles were chosen because their capability react with metallic substances decrease adsorption. This study examines processes that underlie stress caused by Cd how SiO2NPs may be able lessen it through modifying antioxidant defense, oxidative stress, photosynthesis. A 100 μM concentration was applied hydroponically grown wild rice line, 50 (SiO2NPs) given. The depicted when applied, there significant uptake both roots shoots 30.2% 15.8% under respectively. results illustrated had detrimental effect on carotenoid chlorophyll levels other growth-related traits. Additionally, increased ROS plants, which reduced 18.8% (SOD), 39.2% (POD), 32.6% (CAT), 25.01% (GR) rice. Nevertheless, addition damage overall amount uptake, lessened Cd. Reduced formation reactive oxygen species (ROS), including MDA H2O2, defense system antioxidants plants provided evidence for this. Moreover, enhanced resistance, upregulated genes related silicon, transporters’ expression levels.

Language: Английский

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Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize

Journal of Nanobiotechnology, Journal Year: 2024, Volume and Issue: 22(1)

Published: May 17, 2024

Abstract Background Nanoplastics, are emerging pollutants, present a potential hazard to food security and human health. Titanium dioxide nanoparticles (Nano-TiO 2 ), serving as nano-fertilizer in agriculture, may be important alleviating polystyrene nanoplastics (PSNPs) toxicity. Results Here, we performed transcriptomic, metabolomic physiological analyzes identify the role of Nano-TiO regulating metabolic processes PSNPs-stressed maize seedlings ( Zea mays L.). The growth inhibition by PSNPs stress was partially relieved . Furthermore, when considering outcomes obtained from RNA-seq, enzyme activity, metabolite content analyses, it becomes evident that significantly enhance carbon nitrogen metabolism levels plants. In comparison plants were not subjected , exposed exhibited enhanced capabilities maintaining higher rates photosynthesis, sucrose synthesis, assimilation, protein synthesis under stressful conditions. Meanwhile, alleviated oxidative damage modulating antioxidant systems. Interestingly, also found endogenous melatonin seedlings. P -chlorophenylalanine p -CPA, inhibitor) declined -induced tolerance. Conclusions Taken together, our data show is involved promotion through regulation metabolism. Graphical

Language: Английский

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An Overview of the Mechanisms through Which Plants Regulate ROS Homeostasis under Cadmium Stress

Antioxidants, Journal Year: 2024, Volume and Issue: 13(10), P. 1174 - 1174

Published: Sept. 26, 2024

Cadmium (Cd

Language: Английский

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Effects of Nanosilica Priming on Rapeseed (Brassica napus) Tolerance to Cadmium and Arsenic Stress by Regulating Cellular Metabolism and Antioxidant Defense

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

The mechanisms by which seed-primed silicon dioxide nanoparticles (nSi) alleviated arsenic (As) and cadmium (Cd) toxicity in Brassica napus L. remain unclear. A pot study examined the physico-biochemical, cellular, molecular responses of B. exposed to Cd (10 mg/kg soil) As (50 doses with or without nSi priming. results showed that priming improved photosynthesis, seedling biomass, metabolite accumulation, restored cell structure. Upon stress, diminished oxidative stress downplaying H2O2 (24-32%) O2•- (29-36%), MDA, activating antioxidant defenses. Also, relieved accumulation (27-36%) enhancing root-vacuolar sequestration (upregulating BnHMA3, BnPCs, BnABCC1), wall chelation, downregulating root transporters (BnNRAMP5, BnIRTI, BnHMA2, BnHMA4, BnPHT1.1, BnPHT1.4). Our findings revealed effectively enhanced canola tolerance strengthening multiple defense limiting their accumulation.

Language: Английский

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Interspecific Hybridization Enhanced Tolerance to Salinity and Cadmium Stress Through Modifying Biochemical, Physiological, and Resistance Gene Levels, Especially in Polyploid Rice: A Sustainable Way for Stress-Resilient Rice

Rice, Journal Year: 2025, Volume and Issue: 18(1)

Published: March 22, 2025

Abstract Polyploid plants exhibit strong resistance to salt and cadmium (Cd) stress, which can adversely affect their growth, reducing crop quality yield. Transcriptome analysis, antioxidant enzymatic activities, physiological measurements of reactive oxygen species, heterosis analysis were performed on hybrids with neo-tetraploid rice its progenitors. The results showed that diploid had fluctuating yields in early late seasons, while tetraploid consistent grain yield throughout. revealed gene expression related sugar metabolism processes increased hybrids. several genes associated including OsEAF6 , is heterosis, OsCIPK14 involved defense signalling pathways. Furthermore, compared the parents, have a much higher number abiotic stress. Consequently, treated Cd (0 100 µM) NaCl (200 mM) present study. Under toxicity, levels carotenoids reduced by 33.31% 45.59%, chlorophyll declined 16.00% 27.81% hybrids, respectively, control. Tetraploid highest germination rate under stress lowest uptake parents. In general, activities enzymes exhibited considerable drop, whereas H 2 O MDA remarkable increase parents OsERF1 was increased, OsABCC1 OsHMA3 highly expressed rice. Interspecific hybrid ( indica japonica ) displayed enhanced tolerance salinity potentially serving as natural resource improve resilience. These findings provide basis for understanding polyploid rice’s pattern, environmental tolerance, heterosis.

Language: Английский

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Physio-biochemical and transcriptomics analyses reveal molecular mechanisms of enhanced UV-B stress tolerance in rice induced by titanium dioxide nanoparticles

Journal of Plant Interactions, Journal Year: 2024, Volume and Issue: 19(1)

Published: March 20, 2024

Rice (Oryza sativa L.) stands out as the world's most vital staple food crop, yet is susceptible to UV-B radiation stress. This study investigates physiological and transcriptome responses in rice exposed titanium dioxide nanoparticles (TiO2 NPs) under radiation. Results demonstrate that TiO2 NPs, applied alone (TN) or combination with stress (UV+TN), significantly enhance plant growth parameters. Reactive oxygen species (ROS) levels, elevated stress, are reduced by TN UV+TN treatments, thereby regulating antioxidants particularly involved ascorbate-glutathione pathway. Transcriptomics analysis of identified DEGs UV+TN, utilizing KEGG pathway analysis, reveals significant enrichment various pathways. These pathways include glutathione metabolism, pyruvate starch sucrose regulation basal transcription factors, hormonal signal transduction pathways, cellular processes associated energy, MAPK signaling Overall, NPs application modulates diverse biological metabolic enhancing tolerance rice.

Language: Английский

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