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  • Open Access


    Cd and Hg Mediated Oxidative Stress, Antioxidative Metabolism and Molecular Changes in Soybean (Glycine max L.)

    Sheeba Naaz1,2, Nadeem Ahmad2, Asma A. Al-Huqail3, Mohammad Irfan4, Faheema Khan3, Mohammad Irfan Qureshi1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.6, pp. 1725-1742, 2023, DOI:10.32604/phyton.2023.026100

    Abstract Cadmium (Cd) and Mercury (Hg) is among the heavy metals most hazardous for plant and human health. Known to induce oxidative stress in plants and disbalance equilibrium in the antioxidant defence system, these metals alter plant growth and cause damage at the cellular and molecular levels. Soybean is an important oilseed crop that is raised in soils often contaminated by Cd and Hg. The comparative studies on the deleterious effect of Cd and Hg and the defence system of antioxidants were not studied earlier in soybean plant. In this study, soybean plants were exposed to Cd (100 µM CdCl2) and… More >

  • Open Access


    Subcellular Distribution and Chemical Forms of Cadmium in the Medicine Food Homology Plant Platycodon grandiflorum (Jacq.) A.DC.

    Jia An#, Xiang Wang#, Yajiang Jing, Jianping Huang, Qilong Wang, Gang Zhang, Jing Gao, Liang Peng, Wenli Huang*, Yonggang Yan*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1405-1420, 2023, DOI:10.32604/phyton.2023.026525

    Abstract Although Platycodon grandiflorum (Jacq.) A.DC. is a renowned medicine food homology plant, reports of excessive cadmium (Cd) levels are common, which affects its safety for clinical use and food consumption. To enable its Cd levels to be regulated or reduced, it is necessary to first elucidate the mechanism of Cd uptake and accumulation in the plant, in addition to its detoxification mechanisms. This present study used inductively couple plasma-mass-spectrometry to analyze the subcellular distribution and chemical forms of Cd in different tissues of P. grandiflorum. The experimental results showed that Cd was mainly accumulated in the roots [predominantly in the… More >

  • Open Access


    Optimization of Preparation of Fe3O4-L by Chemical Co-Precipitation and Its Adsorption of Heavy Metal Ions

    Junzhen Di, Xueying Sun*, Siyi Zhang, Yanrong Dong, Bofu Yuan

    Journal of Renewable Materials, Vol.11, No.5, pp. 2209-2232, 2023, DOI:10.32604/jrm.2023.025241

    Abstract To address the serious pollution of heavy metals in AMD, the difficulty and the high cost of treatment, Fe3O4-L was prepared by the chemical co-precipitation method. Based on the single-factor and RSM, the effects of particle size, total Fe concentration, the molar ratio of Fe2+ to Fe3+ and water bath temperature on the removal of AMD by Fe3O4-L prepared by chemical co-precipitation method were analyzed. Static adsorption experiments were conducted on Cu2+, Zn2+ and Pb2+ using Fe3O4-L prepared under optimal conditions as adsorbents. The adsorption properties and mechanisms were analyzed by combining SEM-EDS, XRD and FTIR for characterization. The study… More > Graphic Abstract

    Optimization of Preparation of Fe<sub>3</sub>O<sub>4</sub>-L by Chemical Co-Precipitation and Its Adsorption of Heavy Metal Ions

  • Open Access


    The Application of Fertilizer and AMF Promotes Growth and Reduces the Cadmium and Lead Contents of Ryegrass (Lolium multiflorum L.) in a Copper Mining Area

    Jiaxin Chen1,#, Jiawei Guo1,#, Zhixin Yang1, Jiqing Yang2,*, Hengwen Dong3, Huiyun Wang3, Yalei Wang3, Fangdong Zhan1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 471-485, 2023, DOI:10.32604/phyton.2022.023660

    Abstract Heavy metal-polluted soil was collected from the Pulang copper mine in Shangri-La City, Yunnan Province, Southwest China. The effects of fertilizer (organic and inorganic) and arbuscular mycorrhizal fungi (AMF) on ryegrass (Lolium multiflorum L.) growth, root morphology, mineral nutrition and cadmium (Cd) and lead (Pb) contents were investigated by pot experiments. The results showed that both fertilizer and AMF significantly ameliorated the root morphology and mineral nutrition, reduced the Cd and Pb contents, and promoted the growth of ryegrass. Among all treatments, the combined application of organic–inorganic compound fertilizer with AMF had the highest effect, resulting in increases in root… More >

  • Open Access


    Health Risks Assessment of Heavy Metal Pollution in the Soil-Crop System from an E-Waste Dismantling Area

    Shengting Rao#, Jia Fang#, Keli Zhao*

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2669-2685, 2022, DOI:10.32604/phyton.2022.022416


    Soil is an essential resource for agricultural production. In order to investigate the pollution situation of heavy metals in the soil-crop system in the e-waste dismantling area, the crop and soil samples (226 pairs, including leaf vegetables, solanaceous vegetables, root vegetables, and fruits) around the e-waste dismantling area in southeastern Zhejiang Province were collected. The concentrations of Cd, Cu, Pb, and Cr were determined. The average concentrations of Cd, Cu, Pb, and Cr in soils were 0.94, 107.79, 80.28, and 78.14 mg kg-1, respectively, and their corresponding concentrations in crops were 0.024, 0.7, 0.041, and 0.06 mg kg-1, respectively. The… More >

  • Open Access


    Heavy Metal/Metalloid Indexing and Balances in Agricultural Soils: Methodological Approach for Research

    Shahid Hussain*

    Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2687-2697, 2022, DOI:10.32604/phyton.2022.021158

    Abstract Heavy metal(loid) accumulation in agricultural soils is a threat to the soil capacity, quality, and productivity. It also increases human exposure to heavy metal(loid)s via consumption of contaminated plant-based foods. The detrimental effects of soil contamination also deteriorate the environment of plants and animals. For sustainable agriculture, therefore, the soil must be protected from toxic levels of heavy metal(loid)s. Studies on heavy metal(loid) balances in agricultural soils are important in predicting future risks to sustainable production from agro-ecological zones and human exposure to heavy metal(loid)s. The latest and continuous indexing of the problem seems a prerequisite for sustainable agriculture. This… More >

  • Open Access


    The Effect of Bamboo Charcoal Application on Soil Nutrients and Heavy Metals in Rice

    Guangyue Cai1, Juanli Tu2, Songhao Li3, Yifei Ruan3, Qifeng Wu3, Jiasen Wu1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.6, pp. 1245-1256, 2022, DOI:10.32604/phyton.2022.019599

    Abstract Soil heavy metal pollution is becoming more and more serious. Biomass charcoal application can play an important role in alleviating the toxicity of heavy metals in soils. Compared with other biochar, bamboo charcoal has more unique properties and may have a unique effect on heavy metal pollution. Zhejiang Province of Southeastern China is rich in bamboo resources. However, few studies related to bamboo charcoal application for heavy metal remediation in farmland were reported. In this study, four treatments with different amounts of bamboo charcoal application were set up through a field experiment, namely BC0 (no bamboo charcoal application), BC1 (2500 kg⋅ha−1),… More >

  • Open Access


    Adsorption Properties and Cost of Dicarboxylic Nanocellulose on Copper Ions for Wastewater Treatment

    Xiaozheng Sun1,*, Yu Yang1, Qiang He2, Jianye Li1, Rui Li1, Haitao Chen1

    Journal of Renewable Materials, Vol.10, No.3, pp. 751-766, 2022, DOI:10.32604/jrm.2022.016933

    Abstract The accumulation of Cu2+ in water is a potential threat to human health and environment. Dicarboxylic nanocellulose (DNC) with rich carboxyl groups was prepared through the NaIO4–NaClO2 sequential oxidation method to efficiently remove copper ions, and the Cu2+ adsorption properties and cost were studied. The maximum adsorption capacity reached 184.2 mg/g at pH 6 and an adsorbent dose of 5 g/L. Theoretically, the maximum adsorption capacities of monocarboxylic nanocellulose (MNC), DNC, and tricarboxylic nanocellulose (TNC) with carboxyl groups as the main adsorption sites were calculated to be 228.7, 261.3, and 148.1 mg/g, respectively. The Cu2+ adsorption costs of MNC, DNC, and TNC were… More > Graphic Abstract

    Adsorption Properties and Cost of Dicarboxylic Nanocellulose on Copper Ions for Wastewater Treatment

  • Open Access


    Application of ferrous sulfate alleviates negative impact of cadmium in rice (Oryza sativa L.)


    BIOCELL, Vol.45, No.6, pp. 1631-1649, 2021, DOI:10.32604/biocell.2021.014934

    Abstract Soil contamination with toxic heavy metals [such as cadmium (Cd)] is becoming a serious global problem due to rapid development of social economy. Iron (Fe), being an important element, has been found effective in enhancing plant tolerance against biotic and abiotic stresses. The present study investigated the extent to which different levels of Ferrous sulphate (FeSO4) modulated the Cd tolerance of rice (Oryza sativa L.), when maintained in artificially Cd spiked regimes. A pot experiment was conducted under controlled conditions for 146 days, by using natural soil, mixed with different levels of CdCl2 [0 (no Cd), 0.5 and 1 mg/kg]… More >

  • Open Access


    Heavy Metal Remediation in Sludge Compost: Recent Progress

    Rongwei Xiong1,#, Xiufang Gao1,2,#,*, Xinyue Tu3, Yilin Mao1, Li Jiang1, Lu Zheng3, Yitong Du3

    Journal of Renewable Materials, Vol.10, No.2, pp. 469-486, 2022, DOI:10.32604/jrm.2022.017226

    Abstract The safe and efficient disposal and utilization of sludge are major issues to be solved in solid waste treatment and environmental protection due to the complex characteristics of sludge and the low rate of innocuous treatments. Composting is a process of decomposing organic matter and transformed low-molecular organic acids into high-molecular humus substances under the action of microorganisms. Although land-use after composting has become an important direction for sludge treatment, heavy metal pollution is still the bottleneck problem restricting land use of sludge compost. Adding zeolite, hydroxyapatite, and other conditioning agents to the composting process affects the concentration or form… More >

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