Size-dependent transformation, uptake, and transportation of SeNPs in a wheat–soil system

Lyu, Liqun; Wang, Hanqi; Liu, Ruifang; Xing, Wenjing; Li, Jiao; Man, Yu Bon; Wu, Fuyong

doi:10.1016/j.jhazmat.2021.127323

Cited by 21 publications

(7 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, Alves et al [ 72 ] observed that when the treatment of 1.0 M of selenite or selenate was added to cadmium (Cd) toxicity (0.5 mM CdCl 2 )-stressed tomato plants, they exhibited an increase in photosynthesis and biomass. While Se and Zn (10, 20, and 40 mg L −1 ) were applied together, wheat’s Cd-induced loss in photosynthesis, stem growth, and pigmentation was significantly reduced [ 73 ]. Maize growth and chlorophyll content were raised by selenium treatment (20 mg L −1 ) under increased saline stress, which causes high MDA and H 2 O 2 [ 74 ].…”

Section: Impact Of Se-nps On Growth and Physiologymentioning

confidence: 99%

A Recent Update on the Impact of Nano-Selenium on Plant Growth, Metabolism, and Stress Tolerance

Samynathan¹,

Venkidasamy

Ramya³

et al. 2023

Plants

View full text Add to dashboard Cite

Selenium (Se) is a microelement that plays an important nutrient role by influencing various physiological and biochemical traits in plants. It has been shown to stimulate plant metabolism, enhancing secondary metabolites and lowering abiotic and biotic stress in plants. Globally, the enormous applications of nanotechnology in the food and agricultural sectors have vastly expanded. Nanoselenium is more active than bulk materials, and various routes of synthesis of Se nanoparticles (Se-NPs) have been reported in which green synthesis using plants is more attractive due to a reduction in ecological issues and an increase in biological activities. The Se-NP-based biofortification is more significant because it increases plant stress tolerance and positively impacts their metabolism. Se-NPs can enhance plant resistance to various oxidative stresses, promote growth, enhance soil nutrient status, enhance plant antioxidant levels, and participate in the transpiration process. Additionally, they use a readily available, biodegradable reducing agent and are ecologically friendly. This review concentrates on notable information on the different modes of Se-NPs’ synthesis and characterization, their applications in plant growth, yield, and stress tolerance, and their influence on the metabolic process.

show abstract

Section: Impact Of Se-nps On Growth and Physiologymentioning

confidence: 99%

A Recent Update on the Impact of Nano-Selenium on Plant Growth, Metabolism, and Stress Tolerance

Samynathan¹,

Venkidasamy

Ramya³

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

“…Therefore, considering that SeNPs are easy to aggregate and AASP possesses many reactive hydroxyl groups, it can be inferred that AASP has the potential to be involved in the nucleation, formation, and stability of SeNPs [ 15 ]. Particle size is an important element that affects the physicochemical and biological characteristics of nanomaterials [ 35 ]. Changed mass ratios of Na 2 SeO 3 to polysaccharides can influence the particle size of nano-selenium [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

Preliminary Structural Characterization of Selenium Nanoparticle Composites Modified by Astragalus Polysaccharide and the Cytotoxicity Mechanism on Liver Cancer Cells

Lou

Jiao

et al. 2023

Molecules

View full text Add to dashboard Cite

Astragalus alcohol soluble polysaccharide (AASP) could present superior water solubility and antitumor activity with high concentration. Selenium nanoparticles (SeNPs) have received growing attention in various fields, but their unstable property increases the application difficulties. In the present study, functionalized nano-composites (AASP−SeNPs) were synthesized through SeNPs using AASP (average molecular weight of 2.1 × 103 Da) as a surface modifier, and the preliminary structural characteristics and inhibitory mechanism on liver cancer (HepG2) cells were investigated. Results showed that AASP−SeNPs prepared under a sodium selenite/AASP mass ratio of 1/20 (w/w) were uniformly spherical with a mean grain size of 49.80 nm and exhibited superior dispersivity and stability in water solution. Moreover, the composites could dose-dependently inhibit HepG2 cell proliferation and induce apoptosis through effectively regulating mitochondria-relevant indicators including ΔΨm depletion stimulation, intracellular ROS accumulation, Bax/Bcl-2 ratio improvement, and Cytochrome c liberation promotion. These results provide scientific references for future applications in functional food and drug industries.

show abstract

“…Four NPs, namely, SeNPs, SiO 2 NPs, ZnONPs, and MnO 2 NPs, were used in this study. SeNPs were synthesized using a chemical reduction method, 35 while SiO 2 NPs, ZnONPs, and MnO 2 NPs were purchased from Xianfeng Nano Company (Nanjing, China). The four NPs were characterized using transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffractometer (XRD) (D8 Advance), Fourier infrared analysis (Nicolet iS5), and Raman spectrum (LabRAM HR Evolution) (Figure S1).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Foliar Application of Nanoparticles Reduced Cadmium Content in Wheat (Triticum aestivum L.) Grains via Long-Distance “Leaf–Root–Microorganism” Regulation

Wang,

Mu,

Lin

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

Foliar application of beneficial nanoparticles (NPs) exhibits potential in reducing cadmium (Cd) uptake in crops, necessitating a systematic understanding of their leaf−root− microorganism process for sustainable development of efficient nano-enabled agrochemicals. Herein, wheat grown in Cdcontaminated soil (5.23 mg/kg) was sprayed with different rates of four commonly used NPs, including nano selenium (SeNPs)/ silica (SiO 2 NPs)/zinc oxide/manganese dioxide. SeNPs and SiO 2 NPs most effectively reduced the Cd concentration in wheat grains. Compared to the control, Cd concentration in grains was significantly decreased by 35.0 and 33.3% by applying 0.96 mg/ plant SeNPs and 2.4 mg/plant SiO 2 NPs, and the grain yield was significantly increased by 33.9% with SeNPs application. Downregulated gene expression of Cd transport proteins (TaNramp5 and TaLCT1) and up-regulated gene expression of vacuolar Cd fixation proteins (TaHMA3 and TaTM20) were observed with foliar SeNPs and SiO 2 NPs use. SeNPs increased the levels of leaf antioxidant metabolites. Additionally, foliar spray of SeNPs resulted in lower abundances of rhizosphere organic acids and reduced Cd bioavailability in rhizosphere soil, and soil microorganisms related to carbon and nitrogen (Solirubrobacter and Pedomicrobium) were promoted. Our findings underscore the potential of the foliar application of SeNPs and SiO 2 NPs as a plant and rhizosphere soil metabolism-regulating approach to reduce Cd accumulation in wheat grains.

show abstract

Size-dependent transformation, uptake, and transportation of SeNPs in a wheat–soil system

Cited by 21 publications

References 53 publications

A Recent Update on the Impact of Nano-Selenium on Plant Growth, Metabolism, and Stress Tolerance

A Recent Update on the Impact of Nano-Selenium on Plant Growth, Metabolism, and Stress Tolerance

Preliminary Structural Characterization of Selenium Nanoparticle Composites Modified by Astragalus Polysaccharide and the Cytotoxicity Mechanism on Liver Cancer Cells

Foliar Application of Nanoparticles Reduced Cadmium Content in Wheat (Triticum aestivum L.) Grains via Long-Distance “Leaf–Root–Microorganism” Regulation

Contact Info

Product

Resources

About