Bioaccumulation and phytotoxicity of ZnO nanoparticles in soil-grown Brassica chinensis L. and potential risks

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 306, P. 114454 - 114454

Published: Jan. 7, 2022

Language: Английский

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Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

Journal of Agricultural and Food Chemistry, Journal Year: 2023, Volume and Issue: 71(51), P. 20405 - 20418

Published: Nov. 30, 2023

Global warming has posed significant pressure on agricultural productivity. The resulting abiotic stresses from high temperatures and drought have become serious threats to plants subsequent global food security. Applying nanomaterials in agriculture can balance the plant's oxidant level also regulate phytohormone levels thus maintain normal plant growth under heat stresses. Nanomaterials activate specific stress-related genes, which turn increase activity of shock protein aquaporin enable plants' resistance against This review aims provide a current understanding nanotechnology-enhanced tolerance stress. Molecular mechanisms are explored see how alleviate plants. In comparison with organic molecules, offer advantages targeted transportation slow release. These help mitigating stress

Language: Английский

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Temperature-Responsive Bottlebrush Polymers Deliver a Stress-Regulating Agent In Vivo for Prolonged Plant Heat Stress Mitigation

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(8), P. 3346 - 3358

Published: Feb. 14, 2023

Anticipated increases in the frequency and intensity of extreme temperatures will damage crops. Methods that efficiently deliver stress-regulating agents to crops can mitigate these effects. Here, we describe high aspect ratio polymer bottlebrushes for temperature-controlled agent delivery plants. The foliar-applied bottlebrush polymers had near complete uptake into leaf resided both apoplastic regions mesophyll cells surrounding vasculature. Elevated temperature enhanced vivo release spermidine (a agent) from bottlebrushes, promoting tomato plant (Solanum lycopersicum) photosynthesis under heat light stress. continued provide protection against stress at least 15 days after foliar application, whereas free did not. About 30% ∼80 nm short ∼300 long entered phloem moved other organs, enabling heat-activated phloem. These results indicate ability encapsulated relief when triggered by long-term plants potential manage pathogens. Overall, this temperature-responsive platform provides a new tool protecting climate-induced yield loss.

Language: Английский

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Targeted Delivery of Sucrose‐Coated Nanocarriers with Chemical Cargoes to the Plant Vasculature Enhances Long‐Distance Translocation

Small, Journal Year: 2023, Volume and Issue: 20(7)

Published: Oct. 15, 2023

Abstract Current practices for delivering agrochemicals are inefficient, with only a fraction reaching the intended targets in plants. The surfaces of nanocarriers functionalized sucrose, enabling rapid and efficient foliar delivery into plant phloem, vascular tissue that transports sugars, signaling molecules, through whole plant. chemical affinity sucrose molecules to sugar membrane transporters on phloem cells enhances uptake sucrose‐coated quantum dots (sucQD) biocompatible carbon β‐cyclodextrin molecular baskets (suc‐β‐CD) can carry wide range agrochemicals. QD CD fluorescence emission properties allowed detection monitoring translocation (<40 min) vasculature wheat leaves by confocal epifluorescence microscopy. suc‐β‐CDs more than doubled cargoes leaf tissue. Inductively coupled plasma mass spectrometry (ICP‐MS) analysis showed sucQDs loaded transported roots is over 6.8 times higher unmodified QDs. coating nanoparticles approach enables unprecedented targeted ≈70% phloem‐loaded delivered roots. use biorecognition mediated provides an guiding containing

Language: Английский

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Application of ZnO Nanoparticles Encapsulated in Mesoporous Silica on the Abaxial Side of a Solanum lycopersicum Leaf Enhances Zn Uptake and Translocation via the Phloem

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(51), P. 21704 - 21714

Published: Dec. 11, 2023

Foliar application of nutrient nanoparticles (NPs) is a promising strategy for improving fertilization efficiency in agriculture. Phloem translocation NPs from leaves required efficient but currently considered to be feasible only smaller than cell wall pore size exclusion limit <20 nm. Using mass spectrometry imaging, we provide here the first direct evidence phloem localization and larger (∼70 nm) fertilizer NP comprised ZnO encapsulated mesoporous SiO2 (ZnO@MSN) following foliar deposition. The Si content tissue petiole connected dosed leaf was ∼10 times higher xylem tissue, ∼100 an untreated tomato plant petiole. Direct individual cells has previously been shown introduced invasively plant. Furthermore, show that uptake can enhanced by their on abaxial (lower) side leaf. Applying ZnO@MSN single resulted 56% Zn as well younger (upper) roots, dosing adaxial (top) alignment with stomatal density lower mesophyll tissues not demonstrated before.

Language: Английский

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Metagenomic and proteomic insights into the self‐adaptive cell surface hydrophobicity of Sphingomonas sp. strain PAH02 reducing the migration of cadmium‐phenanthrene co‐pollutant in rice

Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(1)

Published: Jan. 1, 2024

Abstract Cell surface hydrophobicity ( CSH ) dominates the interactions between rhizobacteria and pollutants at soil‐water interface, which is critical for understanding dissipation of in rhizosphere microzone rice. Herein, we explored effects self‐adaptive Sphingomonas sp. strain PAH02 on translocation biotransformation behaviour cadmium‐phenanthrene (Cd‐Phe) co‐pollutant rice microbiome. We evidenced that reduced adsorption Cd‐Phe root while enhancing degradation Phe Cd via its hydroponic experiment. The significant upregulation key protein expression levels such as MerR, ARHDs enoyl‐CoA hydratase/isomerase, ensures to cope with stress co‐pollutant. Consistently, bioaugmentation promoted formation core microbiota soil Oryza sativa L.), Bradyrhizobium Streptomyces induced gene enrichment CusA PobA are strongly associated pollutant transformation. Consequently, contents grains maturity decreased by 17.2% ± 0.2% 65.7% 0.3%, respectively, after PAH02. These findings present new opportunities implementation bioremediation strategies co‐contaminants paddy fields.

Language: Английский

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Preparation of salicylic acid nano-protectant with dual synergistic mechanism: High direct fungicidal activity and plant defence toward cotton Verticillium wilt

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154036 - 154036

Published: July 15, 2024

Language: Английский

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What is missing to advance foliar fertilization using nanotechnology?

Trends in Plant Science, Journal Year: 2022, Volume and Issue: 28(1), P. 90 - 105

Published: Sept. 21, 2022

Language: Английский

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A pH Dual-Responsive Multifunctional Nanoparticle Based on Mesoporous Silica with Metal-Polymethacrylic Acid Gatekeeper for Improving Plant Protection and Nutrition

Nanomaterials, Journal Year: 2022, Volume and Issue: 12(4), P. 687 - 687

Published: Feb. 18, 2022

Integrating pesticides and mineral elements into a multi-functional stimuli-responsive nanocarrier can have synergistic effect on protecting plants from the supply of nutrients. Herein, pH dual-responsive multifunctional nanosystem regulated by coordination bonding using bimodal mesoporous silica (BMMs) as carrier complexes ferric ion polymethacrylic acid (PMAA/Fe3+) gatekeeper was constructed to deliver prochloraz (Pro) for smart treatment wilt disease (Pro@BMMs−PMAA/Fe3+). The loading capacity Pro@BMMs−PMAA/Fe3+ nanoparticles (Nps) 24.0% “PMMA/Fe3+” deposited BMMs surface could effectively protect Pro against photodegradation. possessed an excellent release behavior better inhibition efficacy Rhizoctonia solani. Fluorescence tracking experiments showed that Nps be taken up transported in fungi plants, implying non-systemic successfully delivered target organisms. Furthermore, BMMS−PMAA/Fe3+ nanocarriers promote growth crop seedlings had no obvious toxicological influence cell viability bacteria. This study provides novel strategy enhancing plant protection diseases reducing risk environment.

Language: Английский

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Electrostatics Control Nanoparticle Interactions with Model and Native Cell Walls of Plants and Algae

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(48), P. 19663 - 19677

Published: Nov. 10, 2023

A lack of mechanistic understanding nanomaterial interactions with plants and algae cell walls limits the advancement nanotechnology-based tools for sustainable agriculture. We systematically investigated influence nanoparticle charge on model wall surfaces built cellulose or pectin performed a comparative analysis native Arabidopsis green (Choleochaete). The high affinity positively charged carbon dots (CDs) (46.0 ± 3.3 mV, 4.3 1.5 nm) to both was dominated by strong ionic bonding between surface amine groups CDs carboxyl pectin. In contrast, these formed weaker hydrogen hydroxyl surfaces. similar size negative (−46.2 1.1 6.6 3.8 neutral (−8.6 1.3 1.9 ζ-potentials exhibited negligible walls. Real-time monitoring CD indicated higher absorption efficiency (3.4 10−9) acoustic mass density (313.3 63.3 ng cm–2) than counterparts (p < 0.001 p 0.01, respectively). significantly enhanced electrostatic walls, pointing approaches control binding plant biosurfaces. Ca2+-induced cross-linking affected initial (∼3.75 times lower) but not accumulation nanoparticles This study developed biosurfaces elucidating fundamental nanomaterials main barrier translocation in environment, nanoenabled agriculture reduced environmental impact.

Language: Английский

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