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Biochar and nano-ferric oxide synergistically alleviate cadmium toxicity of muskmelon

文献类型： 外文期刊

作者： Zhou, Ying 1 ; Zou, Zhengkang 1 ; Wang, Mengfei 1 ; Wang, Yunqiang 2 ; Li, Junli 1 ; Qiu, Lingzhi 1 ; Cheng, Yuxuan 1 ; Dai, Zhaoyi 2 ;

作者机构： 1.Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China

2.Hubei Acad Agr Sci, Inst Econ Crops, Wuhan 430064, Peoples R China

3.Hubei Acad Agr Sci, Vegetable Germplasm Innovat & Genet Improvement Ke, Wuhan 430064, Peoples R China

关键词： Cadmium; Muskmelon; Biochar; Nano-ferric oxide; Cadmium stress mitigation; Active ingredients; Target Hazard Quotient

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：5.8； 五年影响因子：5.4 ）

ISSN： 0944-1344

年卷期： 2023 年 30 卷 20 期

页码：

收录情况： SCI

摘要： Cadmium is toxic to plants. The accumulation of cadmium in edible plants such as muskmelon may affect the safe production of crops and result in human health problem. Thus effective measures are urgently needed for soil remediation. This work aims to investigate the effects of nano-ferric oxide and biochar alone or mixture on muskmelon under cadmium stress. The results of growth and physiological indexes showed that compared with the application of cadmium alone, the composite treatment (biochar and nano-ferric oxide) decreased malondialdehyde content by 59.12% and ascorbate peroxidase activity increased by 276.6%. Their addition can increase the stress resistance of plants. The results of soil analysis and cadmium content determination in plants showed that the composite treatment was beneficial to reduce the cadmium content in various parts of muskmelon. In the presence of high concentration of cadmium, the Target Hazard Quotient value of peel and flesh of muskmelon in the composite treatment was less than 1, which means the edible risk was greatly reduced. Furthermore, the addition of composite treatment increased the content of effective components; the contents of polyphenols, flavonoids, and saponins in the flesh of the compound treatment were increased by 99.73%, 143.07%, and 18.78% compared with the cadmium treatment. The results provide a technical reference for the further application of biochar combined with nano-ferric oxide in the field of soil heavy metal remediation, and provide a theoretical basis for further research on reducing the toxicity of cadmium to plants and improving the edible quality of crops.

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