ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2018
·
IF 3.974
Di Guo,Amjad Ali,Chunyan Ren,Juan Du,Ronghua Li,Altaf Hussain Lahori,Ran Xiao,Ziyang Zhang,Zengqiang Zhang
Phytoremediation of contaminated soil is an in-situ reclamation technique for removal of potentially toxic metals through hyperaccumulator plants. Potherb mustard ( Brassica juncea, Coss. ) is less explored for its assisted phytoextraction potential to restore and accelerate potentially toxic metals removal from smelter-contaminated soil. In this study, different levels of ethylene diamine tetraacetic acid (EDTA) alone and combined with citric acid (CA) and oxalic acid (OA) were applied in a greenhouse pot experiment. Chelates added on 25th d and 25/35th d after sowing, enhanced cadmium (Cd) and zinc (Zn) bioavailability in soil due to complexation. As a result, Cd and Zn in shoot and root were significantly amplified by 1.7, 2.15 and 1.93, 2.7 folds than control, respectively. Shoot and root dry weight significantly reduced and ranged between 4.13–9.91 and 0.21–0.77 g pot −1 , respectively. The toxicity induced by potentially toxic metals in plant imposed a series of biological responses. Plant antioxidants like Phenylalanine ammomialyase (PAL), polyphenol oxidase (PPO) Catalase (CAT) content increased, except the peroxidase (POD) with the addition of chelating agents . Besides, biological concentration factor (BCF) of Cd and Zn, translocation factor (TF) of Cd were notably elevated (>1.0), while TF of Zn was reduced. Pearson correlation analysis showed a positive relation between DTPA-extractable and shoot concentration of Cd and Zn, whereas it showed negative correlation with plant dry weight. In general, chelate-assisted phytoremediation of smelter contaminated soil proved effective in this study, and followed the order: EDTA > EDTA + CA ≈ EDTA + OA > CK.
研究领域:
环境科学
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植物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
·
2016
·
IF 2.047
Sai Zhou,Hailu Kai,Zhongyong Zha,Zhendong Fang,Dingna Wang,Liang Du,Dong Zhang,Xiaojie Feng,Yongdong Jin,Chuanqin Xia
Brassica juncea var. foliosa ( B . juncea var. foliosa) is a promising species for thorium (Th) phytoextraction due to its large biomass, fast growth rate and high tolerance toward Th. To further understand the mechanisms of Th tolerance, the present study investigated the subcellular distribution and chemical forms of Th found in B . juncea var. foliosa Our results indicated that in both roots and leaves, Th contents in different parts of the cells follow the order of cell wall > membranes and soluble fraction > organelles . In particular, Transmission Electron Microscope (TEM) analysis showed that Th was abundantly located in cell walls of the roots. Additionally, when plants were exposed to different concentrations of Th, we have found that Th existed in B . juncea var. foliosa with different chemical forms. Much of the Th extracted by 2% acetic acid (HAc), 1 M NaCl and HCl in roots with the percentage distribution varied from 47.2% to 62.5%, while in leaves, most of the Th was in the form of residue and the subdominant amount of Th was extracted by HCl , followed by 2% HAc. This suggested that Th compartmentation in cytosol and integration with phosphate or proteins in cell wall might be responsible for the tolerance of B . juncea var. foliosa to the stress of Th.
研究领域:
植物学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Nan Fang,Xueping Zhao,Yanjie Li,Yuqin Luo,Xiangyun Wang,Hongmei He,Changpeng Zhang,Jinhua Jiang
Novel pesticides broflanilide (BFI), afidopyropen (ADP), and flupyradifurone (FPO) have been widely used and become the new organic pollutants . However, uptake, translocation and residual distribution of BFI, ADP, and FPO in plants remain unclear. Therefore, residues distribution, uptake, and translocation of BFI, ADP, and FPO were investigated in mustard field trials and hydroponic experiments. The field results indicated that the residues of BFI, ADP, and FPO were 0.001–1.87 mg/kg at 0–21 d and dissipated fast in mustard (half-lives=5.2–11.3 d). More than 66.5 % of FPO residues were distributed in the cell-soluble fractions because of their high hydrophilicity, while hydrophobic BFI and ADP were primarily stored in the cell walls and organelles . The hydroponic data showed that the foliar uptake rates of BFI, ADP, and FPO were weak (bioconcentration factors<1), but the root uptake rate was strong (bioconcentration factors>1). The upward and downward translations of BFI, ADP, and FPO were limited (translation factor<1). BFI and ADP are uptake by roots via apoplast pathway, and FPO is uptake via symplastic pathway. This study contributes to the understanding of the formation of pesticide residues in plants and provides a reference for safe application and risk assessment of BFI, ADP, and FPO.
研究领域:
植物学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Huifang Wu,Qiqi Wang,Miaochen Dong,Xinyue Liu,Yanfeng Tang
Accurate and rapid monitoring of organophosphorus pesticides (OPs) residues is crucial for regulating food safety. Herein, dual-emission carbon dots (de-CDs) were fabricated for the ratiometric detection of OPs and Hg 2+ . The de-CDs exhibited two emission peaks at 678 and 485 nm when excited with visible light. Interestingly, the fluorescence at 678 nm was significantly quenched by Hg 2+ mainly because of the static quenching effect, whereas that at 485 nm exhibited a slight change. More significantly, the quenched fluorescence of the de-CDs recovered remarkably after introducing omethoate , diazinon and malathion . Accordingly, the ratiometric detection of the three OPs and Hg 2+ was achieved with high selectivity and robust performance. In addition, the OPs residues assay in Brassica chinensis was successfully performed with satisfactory results. This study not only provides an attractive tool for the simple and rapid assay of OPs but also offers new insights into the fabrication of multi-functional carbon dots .
研究领域:
食品科学
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环境科学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
PHYTOTHERAPY RESEARCH
·
2025
·
IF 6.3
Shushu Jiang,Cheng Wang,Yin Dong,Long Chen,Menghao Shi,Fengxiao Zhang,Zhaohui Wang,Minglu Liang
Numerous studies have documented erucin's anticancer and vasodilatory properties, yet its impact on pathological cardiac hypertrophy remains to be fully understood. This study aimed to explore the therapeutic potential of erucin in cardiac hypertrophy induced by pressure overload. Cardiac hypertrophy was induced in mice by transverse aortic constriction (TAC) surgery, and in neonatal rat cardiomyocytes via phenylephrine (PE) treatment. Cardiac function and remodeling were evaluated using echocardiography, histological assessment, and molecular analyses. Mitochondrial function was assessed by measuring mitochondrial respiration, ATP concentration, the NAD+/NADH ratio, and reactive oxygen species (ROS) levels. Molecular docking was performed to identify erucin's downstream effector. Nrf2 and Sirt3 were silenced using siRNAs, and their activities were inhibited with ML385 and 3-TYP, respectively. Here, we found that erucin improved cardiac function and remodeling in TAC-induced hypertrophic mice, mitigated PE-induced cell hypertrophy, and restored mitochondrial function. Molecular docking analysis identified Nrf2 as a target protein of erucin. Erucin increased Nrf2 protein levels and activated the Nrf2 signaling pathway, which in turn promoted Sirt3 transcription. This effect was blocked by silencing Nrf2 or using ML385. Additionally, silencing Nrf2 and Sirt3 or using ML385 and 3-TYP abolished erucin's protective effects. This study is the first to demonstrate that erucin protects against cardiac hypertrophy by improving mitochondrial function through the activation of the Nrf2-Sirt3 pathway. Erucin may emerge as a promising therapeutic candidate for treating cardiac hypertrophy.
研究领域:
心血管生物学
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药理学
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
·
2024
·
IF 3.4
Chao Zhang,Feng He,Lanzhou Chen
In this study, the morphological and physiological responses of Brassica juncea to the stresses of Cadmium (Cd) and trichlorfon (TCF), and the phytoremediation potential of B. juncea to Cd and TCF were investigated under hydroponics. Results showed that Cd exhibited strong inhibition on biomass and root morphology of B. juncea as Cd concentration increased. The chlorophyll a fluorescence intensity and chlorophyll content of B. juncea decreased with the increased Cd concentration, whereas the malondialdehyde and soluble protein contents and superoxide dismutase activity increased. TCF with different concentrations showed no significant influence on these morphological and physiological features of B. juncea. The biomass and physiological status of B. juncea were predominantly regulated by Cd level under the co-exposure of Cd and TCF. B. juncea could accumulate Cd in different plant parts, as well as showed efficient TCF degradation performance. A mutual inhibitory removal of Cd and TCF was observed under their co-system. The present study clearly signified the physiological responses and phytoremediation potential of B. juncea toward Cd and TCF, and these results suggest that B. juncea can be used as an effective phytoremediation agent for the Cd-TCF co-contamination in water.
研究领域:
植物学
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环境科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF FOOD PROCESS ENGINEERING
·
2020
·Vol. 43
·期 12
·e13556
·
IF 1.703
Shenghua He,Sanjiu Zhou,Weiyun Guo,Yonghui Wang,Chunhong Liu,Rongchun Wang,Fugang Xiao
In this study, rapeseed oil bodies (RPOBs) were used to prepare curcumin emulsions (CEs) in order to investigate their stability and gastrointestinal. The results showed that particle size significantly reduced ( p < .05) with increasing RPOBs concentrations from 1.0 to 6.0 wt%. Additionally, CEs showed good stability at pH 2.0–10.0. However, CEs were instable at salt concentration ranging from 100 to 500 mM and at temperatures between 35 and 95°C. CE fat droplet size after 30 min of digestion time exhibited a remarkable increase ( p < .05) compared with other times. Upon exposure to simulated intestinal fluid (SIF) conditions, CEs particle sizes gradually decreased with increasing digestion time. Then, 56% curcumin and 40 μmol/ml free fatty acids were produced from CEs after 180 min digestion time under SIF conditions. Practical applications Our findings indicate that rapeseed oil bodies as a novel carrier can be applied for the delivery-controlled release of lipophilic bioactive compounds from emulsions during gastrointestinal digestion.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ANALYTICAL CHEMISTRY
·
2025
·Vol. 80
·期 7
·1163-1169
·
IF 1.1
Li Xichen,Lin Zhengzhong
Lead ions in food can accumulate in the human body, leading to various diseases, so it is necessary to detect the content of lead ions in food. In this paper, a new Schiff base was prepared using derivatives of isophthalic acid and salicylaldehyde as a photoresponsive probe for Pb(II) ions. The Schiff base probe had an absorption peak at 505 nm after the addition of Pb(II) ions to an acetonitrile solution. However, other inorganic ions caused only slight absorbance changes at 505 nm. Based on this, a visible light analysis method for Pb(II) ions was established. The equilibrium time of the Schiff base probe with Pb(II) ions was 5 min, with a linear range of 2.5–25 ppm. The Schiff base probe was used to detect Pb(II) ion content in mustard samples, and the recoveries were over 90%. The detection results were not significantly different from those of the standard method, indicating that the Schiff base probe can be used for the rapid determination of Pb(II) ion content in real samples.
研究领域:
分析化学
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环境化学
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食品安全
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材料科学
✓ 已验证
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2021
·
IF 7.963
Wen-Jing Wei,Lei Li,Yu-Pei Gao,Qiang Wang,Yao-Yu Zhou,Xin Liu,Yuan Yang
Plants can absorb and accumulate engineered nanomaterials (ENMs) through water and soil, providing a potential way for nanoparticles to be enriched in humans through the food chain. In this paper, a combination of enzymatic digestion method and SP-ICP-MS analysis was used to quantitatively characterize the enriched AuNPs in mustard and lettuce plants. The results showed that Macerozyme R-10 enzyme can extract AuNPs from plants without obvious aggregation/dissolution. Both mustard and lettuce plants can absorb and enrich the complete AuNPs to the above-ground organs, and the particle number concentrations detected are 1.24 × 10 7 particles L −1 and 4.39 × 10 7 particles L −1 , respectively. With different exposure level of AuNPs(0.5 mg L −1 ,), a particle number concentration of 2.32 × 10 7 particles L −1 was detected in the stems of lettuce plants, while the mustard failed to transport AuNPs to the above-ground organs. The transport efficiency of Au ions by plants is higher than that of AuNPs, and the plants have stronger bioavailability for ions.
研究领域:
植物学
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环境科学
·
纳米毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2021
·Vol. 57
·期 1
·92-100
·
IF 3.713
Wei Wang,Lijun Fan,Xuewen Li,Zirong Wang,Jianzhong Zhou,Buligen Jialengbieke,Jianye Ren,Xiaodong Hu
In this study, the digestion of pectic polysaccharide from Brassica rapa L. (BRP) in vitro and its effect on the intestinal microbiota in cyclophosphamide (Cy)-treated mice were investigated. As a result, the molecular weight ( M w ) of BRP was significantly decreased after simulated gastrointestinal digestion, and content of reducing sugars ( C R ) was significantly increased ( P < 0.05), implying that BRP was gradually degraded under gastrointestinal digestion conditions in vitro . In vivo , both 50 or 200 mg kg −1 ·BW/d of BRP significantly improved SCFAs concentrations that decreased by Cy treatment ( P < 0.05). Meanwhile, BRP enriched the alpha-diversity of intestinal microbiota and altered the microbial composition with an increase of Lactobacillus and a decrease of Clostridium, Ruminococcus, Oscillospira ( P < 0.05). Besides, BRP intervention was conducive to the recovery of mouse body weight, thymus and spleen indices, and contributed to improve the intestinal barrier.
研究领域:
食品科学
·
微生物学
·
药理学
✓ 已验证
产品关联
DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2022
·
IF 7.129
Qiuling Yin,Peng Lyu,Guanghui Wang,Bing Wang,Yingjie Li,Zhongkui Zhou,Yadan Guo,Lianfang Li,Nansheng Deng
The decommissioning of uranium tailings (UMT) is usually accompanied by uranium (U) contamination in soil, which poses a serious threat to human health and ecological security. Therefore, the remediation of uranium pollution in soil is imminent from ecological and environmental points of view. In recent years, the use of biochar stabilizers to repair uranium tailings (UMT) soil has become a research hotspot. In this study, a novel phosphorus-modified bamboo biochar (PBC) cross-linked Mg–Al layered double-hydroxide composite (PBC@LDH) was prepared. The hyperaccumulator plant Indian mustard ( Brassica juncea L.) was selected as the test plant for outdoor pot experiments, and the stabilizers were added to the UMT soil at the dosage ratio of 15 g kg −1 , which verified the bioconcentrate and translocate of U and associated heavy metal Pb in the UMT soil by Indian mustard after stabilizer remediated. The results shown that, after 50 days of growth, compared with the untreated sample (CK), the Indian mustard in PBC@LDH treatment possessed a better growth and its biomass weight of whole plant was increased by 52.7%. Meanwhile, the bioconcentration factors (BF) of U and Pb for PBC@LDH treatment were significantly decreased by 73.4% and 34.2%, respectively; and the translocation factors (TF) were also commendable reduced by 15.1% and 2.4%, respectively. Furthermore, the Tessier available forms of U and Pb in rhizosphere soil showed a remarkably decrease compared with CK, which reached by 55.97% and 14.1% after PBC@LDH stabilization, respectively. Complexation, precipitation, and reduction of functional groups released by PBC@LDH with U and Pb described the immobilization mechanisms of biochar stabilizer preventing U and Pb enrichment in Indian mustard. As well as, the formation of U-containing vesicles was prevented by the precipitation of −OH functional groups with free U and Pb ions around the cell tissue fluids and vascular bundle structure of plant roots, thereby reducing the migration risk of toxic heavy metals to above-ground parts. In conclusion, this research demonstrates that the PBC@LDH stabilizer offers a potentially effective amendment for the remediation of U contaminated soil.
研究领域:
环境科学
·
植物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2024
·
IF 5.7
Lan Wei,Lei Ji,Cyren Rico,Changyu He,Iqra Shakoor,Mary Fakunle,Xiaohua Lu,Yuhong Xia,Ying Hou,Jie Hong
In this study, Brassica chinensis L seedlings after 6 weeks of soil cultivation were treated with foliar application of TiO2 NPs (20 mg/L) for different times. Transcriptomics analysis was employed to investigate the impact of TiO2 NPs on the physiology, growth, and yield of B. chinensis L. Results showed that TiO2 NPs’ exposure significantly increased the biomass, total phosphorus, and catalase enzyme activity by 23.60, 23.72, and 44.01%, respectively, compared to the untreated ones (not bulk or ion).TiO2 NPs increased the leaf chlorophyll content by 4.9% and photosynthetic rate by 16.62%, which was attributed to the upregulated expression of seven genes (PetH, PetF, PsaF, PsbA, PsbB, PsbD, and Lhcb) associated with electron transport in photosystem I and light-harvesting in leaves. The water balance of B. chinensis was improved correlating with the altered expressions of 19 aquaporin genes (e.g., PIP2;1 and NIP6;1). The expressions of 58 genes related to plant hormone signaling and growth were dysregulated, with notable downregulations in GA20, SnRK2, and PP2C and upregulations of DELLAs, SAM, and ETR. Moreover, the 11 tricarboxylic acid cycle genes and 13 glycolysis genes appear to stimulate pathways involved in promoting the growth and physiology of B. chinensis. This research contributes valuable insights into new strategies for increasing the yield of B. chinensis.
研究领域:
植物学
·
农业科学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）