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Transcriptome studies on cadmium tolerance and biochar mitigating cadmium stress in muskmelon

文献类型： 外文期刊

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

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： Soil cadmium pollution; Bioaccumulation; Transcriptome; Muskmelon; Soil remediation; Biochar

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.5； 五年影响因子：6.4 ）

ISSN： 0981-9428

年卷期： 2023 年 197 卷

页码：

收录情况： SCI

摘要： Cadmium pollution in agricultural soil is a great threat to crop growth and human health. In this research, with 1%, 3% and 5% biochar applied to control soil cadmium pollution, melon was selected to be the experimental object for physiological detection and transcriptome analysis, through which we explored the mechanism of cadmium tolerance and biochar mitigating cadmium stress in muskmelon. Three set concentrations of biochar have a mitigative effect on muskmelon cadmium stress, and 5% biochar and 3% biochar respectively have the best and the worst alleviative effect. The alleviation of biochar to cadmium stress on muskmelon is primarily in the manner of inhibiting cadmium transfer, while the resistance of muskmelon to cadmium stress is through activating phenylpropanoid pathway and overexpressing stress related genes. Under cadmium treatment, 11 genes of the phenylpropane pathway and 19 stress-related genes including cytochrome P450 family protein genes and WRKY transcription factor genes were up-regulated, while 1%, 3%, 5% biochar addition significantly downregulated 3, 0, 7 phenylpropane pathway genes and 17, 5, 16 stress-related genes, respectively. Genes such as cytochrome P450 protein family genes, WRKY transcription factor genes, and annexin genes may play a key role in muskmelon's resistance to cadmium stress. The results show the key pathways and genes of cadmium stress resistance and the effect of different concentrations of biochar in alleviating cadmium stress, which provide a reference for the research of cadmium stress resistance in crops and the application of biochar in cadmium pollution in agricultural soil.

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