Toxicity effects of zinc supply on growth revealed by physiological and transcriptomic evidences in sweet potato (Ipomoea batatas (L.) Lam)
文献类型： 外文期刊
作者： Meng, Yusha 1 ; Xiang, Chao 1 ; Huo, Jinxi 2 ; Shen, Shengfa 1 ; Tang, Yong 2 ; Wu, Liehong 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Crops & Nucl Technol Utilizat, Hangzhou 310021, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Key Lab Creat Agr, Minist Agr & Rural Affairs, Hangzhou 310021, Zhejiang, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2045-2322
年卷期： 2023 年 13 卷 1 期
页码：
收录情况： SCI
摘要： Zinc toxicity affects crop productivity and threatens food security and human health worldwide. Unfortunately, the accumulation patterns of zinc and the harmful effects of excessive zinc on sweet potato have not been well explored. In the present research, two genotypes of sweet potato varieties with different accumulation patterns of zinc were selected to analyze the effects of excessive zinc on sweet potato via hydroponic and field cultivation experiments. The results indicated that the transfer coefficient was closely related to the zinc concentration in the storage roots of sweet potato. Excessive zinc inhibited the growth of sweet potato plants by causing imbalanced mineral concentrations, destroying the cellular structure and reducing photosynthesis. Furthermore, a total of 17,945 differentially expressed genes were identified in the two genotypes under zinc stress by transcriptomic analysis. Differentially expressed genes involved in the absorption and transport of zinc, defense networks and transcription factors played important roles in the response to zinc stress. In conclusion, this study provides a reference for the selection of sweet potato varieties in zinc contaminated soil and lays a foundation for investigating the tolerance of sweet potato to excessive zinc, which is meaningful for environmental safety and human health.
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