Foliar Application of Zinc Oxide Nanoparticles Alleviates Phenanthrene and Cadmium-Induced Phytotoxicity in Lettuce: Regulation of Plant–Rhizosphere–Microbial Long Distance DOI

Manman Cao,

Wenxiao Lv,

Fei Wang

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Foliar application of beneficial nanoparticles exhibits potential in mitigating combined stresses from heavy metals and polycyclic aromatic hydrocarbons (PAHs) crops, necessitating a comprehensive understanding plant–rhizosphere–microbial processes to promote sustainable nanotechnology agriculture. Herein, we investigated the mechanisms foliar zinc oxide (nZnO) on lettuce growth under phenanthrene (Phe) cadmium (Cd) costress. Compared Phe + Cd treatment, low (L-nZnO) high (H-nZnO) concentration nZnO increased fresh biomass (27.2% 8.42%) root length (20.4% 39.6%) decreased MDA (35.0% 40.0%) H2O2 (29.0% 15.6%) levels. L-nZnO H-nZnO roots (26.8% 41.8%) enhanced Zn (19.9% 107%), stems (221% 2510%), leaves (233% 1500%), suggesting long-distance migration subsequently regulating metabolic pathways microbial communities. Metabolomics revealed that modulated leaf glycerophospholipid metabolism amino acid promoted rhizosphere soil carbon phosphorus metabolism. Additionally, enriched plant-growth-promoting, extreme, stress-resistant bacteria heavy-metal-resistant PAH-degrading soil. These findings underscore promising nanostrategy benefit plant cocontaminated with PAHs.

Language: Английский

Metalloid Nanomaterials Alleviate Arsenic Phytotoxicity and Grain Accumulation in Rice: Mechanisms of Abiotic Stress Tolerance and Rhizosphere Behavior DOI
Xuesong Cao, Xiaofei Chen,

Enyuan Liu

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Nanoenabled agriculture technology exhibits potential in reducing arsenic uptake rice; however, a systematic understanding of the rice-soil-microorganism process nanomaterials (NMs) is lacking. Soil amendment metalloid NMs, including SiO2, hydroxyapatite, S0, and Se0 at 10-100 (0.1-5.0 for Se NMs) mg/kg, increased rice biomass by 76.1-135.8% arsenic-contaminated soil (17.0 mg/kg) decreased accumulation plant tissues 9.3-78.2%. The beneficial effects were nanoscale-specific NMs type- concentration-dependent; 5 mg/kg showed greatest growth promotion decrease As accumulation. Mechanistically, (1) optimized bacterial community structure, enhancing abundance arsM 104.2% subsequently increasing methylation 276.1% rhizosphere compared to arsenic-alone treatments; (2) metabolomic analyses that upregulated biosynthesis pathway abscisic acid, jasmonic glutathione, with subsequent downregulation transporter-related gene expression roots 42.2-73.4%, decreasing formation iron plaque 87.6%, detoxification 50.0%. Additionally, significantly enhanced arsenic-treated yield 66.9-91.4% grain nutritional quality. This study demonstrates excellent an effective sustainable strategy increase food quality safety.

Language: Английский

Citations

0
Enhanced remediation of cadmium-contaminated farmland by smooth vetch (Vicia villosa var.) coupled with phosphorus/sulfur co-doped biochar: Synergetic performance and mechanism DOI
Fuxuan Bi, Zhao Jiang,

Mengning Wang

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: 496, P. 144986 - 144986

Published: Feb. 26, 2025

Language: Английский

Citations

0
Multi-activity ferruginated carbon quantum dots nanozyme improves wheat seedling growth and Cd tolerance DOI Creative Commons
Zhiwei Lu, Yu Li, Keyu Chen

et al.

The Crop Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Detoxification Strategy of Titanium Oxide Nanoparticles Driving Endogenous Molecules Metabolism to Modulate Atrazine Conversion in Lactuca sativa L. DOI

Yuzhu Weng,

Xue Bai, Mengen Kang

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Nanoparticles (NPs) exhibit the potential to enhance plant tolerance organic pollutant stress, but how they drive endogenous molecules detoxify contaminants remains be further investigated. This study clarified modulatory mechanisms by which foliar or root application of biosynthesized titanium oxide NPs (g-nTiO2) alleviated atrazine (ATZ) toxicity Lactuca sativa L. Compared with ATZ-alone group, 10 mg/L g-nTiO2 intensified light-harvesting, photoelectron transfer, and reduced oxidative damage, thereby improving growth inducing metabolic reprogramming. Specifically, activated pathways related energy supply defense detoxification, while stabilizing membrane lipid nitrogen metabolism. Furthermore, modulation biomarkers involved in balancing cellular homeostasis stimulating ultimately boosted lettuce resistance ATZ physiological performance. Molecular docking analysis revealed that enhanced Phase II metabolism glutathione amino acids through increasing detoxification enzyme activities 23–44%, confirmed driving role alleviating phytotoxicity lettuce. Collectively, these findings provide a prospective nanoenabled strategy for mitigating crop sensitivity pesticide residues safe sustainable agricultural production.

Language: Английский

Citations

0
Comparative Study of Organosilicon and Inorganic Silicon in Reducing Cadmium Accumulation in Wheat: Insights into Rhizosphere Microbial Communities and Molecular Regulation Mechanisms DOI
Zhiheng Wang, Shuxin Tu, Khurram Shehzad

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138061 - 138061

Published: March 1, 2025

Language: Английский

Citations

0
Remediation of Coastal Wetland Soils Co-Contaminated with Microplastics and Cadmium Using Spartina alterniflora Biochar: Soil Quality, Microbial Communities, and Plant Growth Responses DOI Creative Commons

Jing Shi,

Xiangyu Pan, Weizhen Zhang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(4), P. 877 - 877

Published: March 31, 2025

Biochar, an eco-friendly soil amendment, holds promise for remediating contaminated soils, yet its impacts on coastal wetland soils under combined microplastic (MP) and heavy metal (HM) pollution remain underexplored. This study examined the efficacy of 2% Spartina alterniflora-derived biochar (BC) in rehabilitating co-contaminated with cadmium (Cd) two MPs—polyethylene (PE) polylactic acid (PLA)—at 0.2% (w/w). The results indicated that significantly elevated pH (8.35–8.43) restored electrical conductivity (EC) to near-control levels, while enhancing organic matter content (up 130% PLA-contaminated soils), nutrient availability (e.g., phosphorus, potassium), enzyme activity. Biochar reduced bioavailable Cd by 14–15% through adsorption ion exchange. Although bacterial richness diversity slightly declined, reshaped microbial communities, enriching taxa linked pollutant degradation Proteobacteria, Bacteroidota) upregulated functional genes associated carbon, nitrogen, sulfur cycling. Additionally, boosted Suaeda salsa (S. salsa) biomass 0.72 g/plant A1B) height 14.07 cm E1B) reducing accumulation (29.45% shoots) translocation. Remediation efficiency was most pronounced PLA. These findings bridge critical knowledge gaps biochar’s role complexly polluted wetlands validate potential sustainable restoration.

Language: Английский

Citations

0
Application of Silica Nanoparticles Induces Different Effects on Inorganic and Methylated Arsenic Accumulation in Rice Grains: Insights from Arsenic Transformation in Soil DOI
Yifan Gao, Xiangyi Liao, JunGang Deng

et al.

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

Published: April 19, 2025

Silica nanoparticles (SiNPs) are promising agrochemicals for reducing pollutant accumulation in plants. However, their applications sometimes fail to reduce arsenic rice grains. Here, we explored the mechanisms using pot experiments via foliar and soil applications, respectively. Both significantly decreased As(III) (19.2-35.1%) DMA (74.4-81.3%) grains but increased As(V) by 1.2-1.8-fold. SiNP reduced promoted porewater during flooding period. The As(III)-oxidation gene aioA showed a 1-3 orders of magnitude higher abundance than arsenic-reduction/methylation genes, its after both applications. facilitated release Fe-bound organic carbon into bacterial growth oxidation, leading high availability uptake. Nevertheless, spraying performed better amendment total inhibiting stem/nodes-to-grain translocation. Our findings highlight microbial transformation regulated SiNPs demonstrate advantages arsenic-contaminated paddy field.

Language: Английский

Citations

0
The role of selenium and selenium nanoparticles in enhancing plant tolerance to cadmium stress: a sustainable approach DOI Creative Commons
Bouzid Nedjimi

Discover Plants., Journal Year: 2025, Volume and Issue: 2(1)

Published: April 28, 2025

Language: Английский

Citations

0
Application of waste eggshells elevates phytoremediation efficiency of Pb-Zn mine-contaminated farmland and mitigates soil greenhouse gas emissions: A field study DOI
Hyeon Gyu Yi, Bo Gao,

Xingfeng Zhang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 370, P. 122947 - 122947

Published: Oct. 18, 2024

Language: Английский

Citations

3
Achieving synergistic benefits through integrated governance of cultivated cadmium contamination via multistakeholder collaboration DOI Creative Commons
You Li, Huan Tao, Hongying Cao

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 13, 2024

Rice serves as a vital staple food, but its accumulation of cadmium (Cd) has sparked widespread concerns regarding food safety and ecosystem security. Here, we conducted seven-year systematic field experiment in the Xiangjiang River Basin China, where an integrated governance framework (IGF) was established to ensure rice safety. The IGF, tailored geographical zoning pollution gradation, includes targeted soil treatments, crop management strategies, stakeholder engagement. quality both improved, with reduction Cd availability 36%, decrease grain 57-78%. This not only addresses multiple challenges also supports sustainable development goals (SDGs 2, 3, 6, 9) by fostering comprehensive synergies among science, policy, local community participation. Our findings provide empirical guidance for safe production Cd-contaminated areas solid scientific-driven decision support globally. study introduces Integrated Governance Framework combining 7-year assessment efficacy large-scale cadmium-contaminated soils management.

Language: Английский

Citations

3