Baoshan Xing’s research while affiliated with University of Massachusetts System and other places

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Publications (795)


Polystyrene Nanoplastics Compromise the Nutritional Value of Radish ( Raphanus sativus L.)
  • Article

May 2025

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21 Reads

Environmental Science and Technology

Chunyang Li

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Chuanxin Ma

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Heping Shang

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[...]

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Baoshan Xing






Concentrations of the target MPs in leaves and vegetables and in the atmosphere in Tianjin
a, The location of the sampling sites in Tianjin, China and the atmospheric concentration (ng per m³ DW) of PET and PS polymers. b,c, The concentrations (ng per g DW) of PET polymer (b) and oligomer [TPA-EG]3 (c) in the leaves of six independent plants at three different sites (campus, park and factory). d–f, Varied concentrations of PET (d) and [TPA-EG]3 (e) in leaves of different growth duration, as well as the relationship between the PET concentration in leaves and the leaf physiological characteristics identified by principal component analysis (PCA) (f). g–i, The average concentrations (ng per g) of PET in the open-air-planted vegetables (g) and greenhouse vegetables (h) and the difference between the outer and inner leaves of vegetables (i). For d–f, average values are shown. n = 6 independent biological individuals of Brassica oleracea var. botrytis L., Ipomoea aquatica Forssk. and Apium graveolens L. in both open-air and greenhouse environments in g and h; n = 9 independent biological individuals of B. rapa var. chinensis, Spinacia oleracea L., L. sativa var. capitata, B. rapa var. glabra, B. oleracea var. capitata and L. sativa var. ramosa in both open-air and greenhouse environments in g and h. Vegetable samples were collected from 6 independent biological individuals (n = 6) (i). Data are mean ± s.d. (g–i). IQR, interquartile range; ND, not detected. The maps in a are from Natural Earth (https://www.naturalearthdata.com/).
Source data
The absorbed PET MPs in the leaves from the field investigation and in the maize leaves from the laboratory simulation experiment
a, The concentrations of PET in leaves (ng per g DW) of six plants and the corresponding atmospheric levels of PET (ng per m³). b, The absorption efficiency of PET NPs in the leaf, stem and root of maize in the one-day foliar exposure experiment and the one-day root exposure experiment. c,d, The absorbed PET particles observed in HSI images of the intercellular space (c (1–3)) and trichomes (c (4–6)) of maize leaves in the high-dose treatment group were confirmed by the reference spectral library of PET polymer (d). Three exposure treatments, including low-dose, high-dose and high-dose with ABA were conducted in the foliar exposure experiment, while a high dose was also applied in the hydroponic root exposure system. For c, images 1 and 4 are merged images; 3 and 6 are HSI images; and 2 and 5 are magnifications of the yellow boxes in 1 and 4. PET particles are marked with yellow arrows and boxes in the images. ep., epidermis; me., mesophyll. Leaf samples were collected from six independent biological individuals (n = 6) (a and b). Data are mean ± s.d. (b). The experimental results obtained by HSI were repeated at least twice. Scale bars, 20 μm (c (1 and 4)) and 10 μm (c (2, 3, 5 and 6)).
Source data
The absorbed fluorescent PS polymers observed in maize leaves
a–i, Confocal laser scanning microscopy images of the absorbed PS particles in vascular tissue (a–c) and closed stomata (d–f) of maize leaves, and images of plant tissue of the control group (g–i). The samples were excited at 488 nm (a,d,g) and 532 nm (b,e,h), and the merged field is shown (c,f,i). The red boxes indicate the PS particles, and the red arrow indicate stomata. The mixture of red-fluorescence-labelled PS particles and green-fluorescence-labelled plant tissue causes PS particles to appear red or yellow in the images. The plants unexposed to fluorescent PS MPs were used as controls to adjust the detector gain and establish a baseline. All of the images were acquired with the same detector gain to ensure comparability of relative intensities. Under the imaging conditions used, untreated control plant tissues did not exhibit detectable autofluorescence under 532 nm excitation (g–i). When the tissues were treated with fluorescent PS beads, the beads were identified by their photoluminescence³⁹. The experimental results obtained using confocal laser scanning microscopy were repeated at least twice. Scale bars, 50 μm (a–f) and 100 μm (g–i).
The distribution of PS NPs in maize leaves and the speculated transport pathways
a–c, On the basis of the HSI images of the absorbed PS NPs in the cuticle to mesophyll (a (1–3)), intercellular spaces of leaf mesophyll (a (4–6)), vascular tissue of the stem (a (7–9)) and trichome (a (10 and 11)) of maize leaves, and the layered distribution image of the ICP-MS signal of Eu in the maize leaves exposed to PS–Eu NPs from the upper surface (b), the pathways for MP transport from the stomata to the phloem or trichomes through the apoplastic routes were speculated (c). For a, images 3, 6, 9 and 11 are HSI images; 1, 2, 4, 5, 7, 8 and 10 are optical microscopy images merged with HSI images; 2, 5 and 8 are magnified from the yellow boxes in 1, 4 and 7, respectively; and 12 shows the reference spectral library of PS. The yellow boxes and arrows point to PS polymers. PS polymer is represented by red dots. c., cuticle; sh., sheath cell; vb., vasculature bundle. For detecting the Eu signal in maize leaves exposed to PS–Eu NPs (b), the leaf was eroded by lasers with different energy to obtain three layers, that is, the lower layer (0–15 µm by a laser of 1 J cm⁻²), middle layer (15–65 µm, 3 J cm⁻²) and upper layer (the residual part, 3 J cm⁻²). The red arrows and blue arrows in c indicate the translocation of MPs absorbed by the leaves to vascular tissue and trichomes, respectively. The experimental results obtained by HSI were repeated at least twice. Scale bars, 300 μm (b), 20 μm (a (1, 4, 7, 10 and 11)), 10 μm (a (2, 3, 5 and 6)) and 5 μm (a (8 and 9)).
Source data
Leaf absorption contributes to accumulation of microplastics in plants
  • Article
  • Publisher preview available

April 2025

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195 Reads

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2 Citations

Nature

Plant absorption is important for the entry of many pollutants into food chains. Although terrestrial microplastics (MPs) can be absorbed by the roots1,2, their upward translocation is slow¹. Meanwhile, atmospheric MPs are widely present3,4, but strong evidence on their direct absorption by plants is still lacking. Here, analyses using mass spectrometry detection show the widespread occurrence of polyethylene terephthalate (PET) and polystyrene (PS) polymers and oligomers in plant leaves, and identify that their levels increase with atmospheric concentrations and the leaf growth duration. The concentrations of PET and PS polymers can reach up to 10⁴ ng per g dry weight in leaves at the high-pollution areas studied, such as the Dacron factory and a landfill site, and 10²–10³ ng per g dry weight of PET and PS can be detected in the open-air-grown leafy vegetables. Nano-sized PET and PS particles in the leaves were visually detected by hyperspectral imaging and atomic force microscopy–infrared spectroscopy. Absorption of the proactively exposed non-labelled, fluorescently labelled or europium-labelled plastic particles by maize (Zea mays L.) leaves through stomatal pathways, as well as their translocation to the vascular tissue through the apoplastic pathway, and accumulation in trichomes was identified using hyperspectral imaging, confocal microscopy and laser-ablation inductively coupled plasma mass spectrometry. Our results demonstrate that the absorption and accumulation of atmospheric MPs by plant leaves occur widely in the environment, and this should not be neglected when assessing the exposure of humans and other organisms to environmental MPs.

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Citations (39)


... Microplastics, defined as any plastic less than 5 mm in size, have recently been identified as one of the most ubiquitous and potentially harmful environmental pollutants (Lim, 2021) (Zhao et al., 2024) (Li et al., 2025). To date MPs have been shown to induce numerous detrimental health effects, including increased oxidative stress (Kadac-Czapska et al., 2024) (Zou et al., 2023) (Jia et al., 2023), increased inflammation (Pulvirenti et al., 2022) (Gaspar et al., 2023) (Luo et al., 2022), alterations in reproductive function (Urli et al., 2023) (Inam, 2025), and gut dysbiosis (Sofield et al., 2024) (Xie et al., 2021). ...

Reference:

Short-Term Exposure to Polystyrene Microplastics Alters Cognition, Immune, and Metabolic Markers in an APOE Genotype and Sex-Dependent Manner
Leaf absorption contributes to accumulation of microplastics in plants

Nature

... In a recent work, Bian et al. (2025) showed that specific concentrations of SiO 2 NPs could alter the rhizosphere in ginseng crops, providing diverse habitats for soil microorganisms, fostering microbial interactions, supporting the stability of microbial networks, and positively impacting nutrient cycling within the rhizosphere. Another study by Wang et al. (2024) showed that adding 650 mg L −1 silica nanoparticles in soil altered the tomato plants' rhizosphere and increased beneficial communities of bacteria that promote plant resistance against pathogens. In fact, it is possible to hypothesize that the absence of a difference in biomass between the control group and the groups with only the presence of Si (SiO₂ NPs or Na₂SiO₃), as shown in Fig. 2, could be correlated with the lack of deleterious effects resulting from the addition of Si to the rhizospheric microbiota of soybean plants. ...

Silica nanoparticles enhance plant disease resistance by modulating the endophyte community structure in tomato ( Solanum lycopersicum L.) roots
  • Citing Article
  • January 2025

Environmental science. Nano.

... Z inc is essential for plant growth, and Zn deficiency is the most common micronutrient deficiency in plants. 1 The solubility of Zn fertilizer in a soil determines the effectiveness of Zn availability to plants in Zn-deficient soils. 2 However, only 30−50% of applied bulk ionic fertilizers are absorbed by plant, while the remaining zinc forms insoluble complexes, such as Zn(OH) 2 and ZnCO 3 , in alkaline soils, rendering it unavailable for plant uptake. 3,4 In contrast, nanofertilizers, with their prolonged dissolution properties and nanoscale size, offer higher bioavailability to plants compared to conventional ionic fertilizers, thereby enhancing plant growth and nutrition quality. 3,5 Therefore, nanofertilizers have received increasing attention in agriculture. ...

Foliar Application of Zinc Oxide Nanoparticles Alleviates Phenanthrene and Cadmium-Induced Phytotoxicity in Lettuce: Regulation of Plant-Rhizosphere-Microbial Long Distance
  • Citing Article
  • December 2024

Environmental Science and Technology

... However, with the rapid development of human society, water pollution is becoming increasingly serious. For example, the discharge of urban sewage, surface runoff from agricultural production, and biomass burning have increased the concentration of pollutants such as black carbon, heavy metals, and polycyclic aromatic hydrocarbons in rivers and lakes [3][4][5][6]. These have caused water quality evaluation indicators such as chemical oxygen demand and biochemical oxygen demand to exceed the standards, seriously affecting the health of aquatic ecosystems and causing ecological imbalance [7][8][9]. ...

Dynamic formation mechanism of persistent free radicals driven by water-phase oxidation-dependent heterogeneity of the carbon-silicon coupling structure in biochar
  • Citing Article
  • December 2024

Journal of Hazardous Materials

... Condensed aromatics and hydrocarbons, peptides, and carbohydrates were minor components of BrCaq (Figs. 9D-F). While some studies reported higher emissions of these molecules, their contribution varies considerably depending on the pyrolysis temperature Oros et al., 2006;Chang et al., 2024). 365 ...

Environmental implications of residual pyrogenic carbonaceous materials from incomplete biomass combustion: a review

Carbon Research

... 11,12 Previous reports also revealed that NMs have the capacity to mimic the activity of antioxidant enzymes, thereby scavenging ROS in plants. 11,14,27 For instance, Sun et al. reported that root application of Mn 3 O 4 nanoparticles (11.02 nm) at 500 mg kg −1 significantly alleviated drought stress of maize plants due to mimicking both superoxide dismutase (SOD) and catalase (CAT) activities. 28 In addition, Zhao et al. revealed that NMs have the ability to stimulate defense systems and acquire systemic-acquired acclimation by triggering ROS in crops, and NMs with the ability to trigger ROS are more like a "preventive" strategy that can respond more rapidly to subsequent stress by a form of "stress memory". ...

Molecular Evidence of CeO2 Nanoparticle Modulation of ABA and Genes Containing ABA-Responsive Cis-Elements to Promote Rice Drought Resistance
  • Citing Article
  • November 2024

Environmental Science and Technology

... These effects weakened the electrostatic repulsion forces between GO particles, thereby enhancing their aggregation rates (He et al., 2017). Similar increase in aggregation behavior and D h of GO with rising NaCl concentration have been reported in previous studies (Chowdhury et al., 2013;Lanphere et al., 2013;Tang et al., 2020). ...

Effects of pH and electrolytes on the sheet-to- sheet aggregation mode of graphene oxide in aqueous solutions

... In what ways do nanoparticles protect the plant microbiome from dysbiosis during climate challenges such as temperature extremes heatwaves? (e.g., [11]). To what degree does the nano-priming of seeds or seedlings establish a unique and stable microbiome that can be effectively passed to the next generation? ...

Zinc oxide nanoparticles cooperate with the phyllosphere to promote grain yield and nutritional quality of rice under heatwave stress

Proceedings of the National Academy of Sciences

... Various advanced techniques have been developed to resolve MP pollution through degradation and removal processes (Tong et al., 2024). The polymer chains and chemical bonds in the plastics can be destroyed through various methods, resulting in the decomposition into smaller substances or complete degradation into CO2 and H2O. ...

Selection of engineered degradation method to remove microplastics from aquatic environments
  • Citing Article
  • September 2024

The Science of The Total Environment

... Over the past decades, biochar and other carbon-based materials have been extensively utilized for soil improvement, nutrient retention, and pollutant adsorption [3]. As the most reactive and bioavailable fraction of biochar, dissolved biochar (DBC)-consisting of micro-and nanoparticles particles (<1 µm) with a large surface area (400-500 m 2 /g)-has garnered increasing attention due to its enhanced mobility, greater surface reactivity, and potential ecological interactions [4,5]. Studies suggest that DBC plays a crucial role in carbon cycling, nutrient transport, and pollutant dynamics in soil impact of micro/nano biochar on the infectivity, pathogenicity, and development of Steinernema feltiae larvae; (2) examine the regulatory effects of micro/nano biochar on the gene expression of entomopathogenic nematodes using transcriptomic techniques; and (3) detect the pathway for Steinernema feltiae exposed to micro/nano biochar. ...

From Bulk to Nano: Formation, Features, and Functions of Nano-Black Carbon in Biogeochemical Processes
  • Citing Article
  • August 2024

Environmental Science and Technology