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云师大马铃薯研究院王洪洋博士在top期刊《Science of The Total Environment》发表研究成果

已有 647 次阅读 2023-12-7 22:43 |个人分类:云师大研究|系统分类:论文交流

2023年12月1日,Elsevier 旗下top期刊《Science of The Total Environment》在线发表了云南师范大学马铃薯研究院王洪洋博士团队与云南大学、巴基斯坦阿卜杜勒·瓦利汗大学等团队合作的最新研究成果《Combined passivators regulate physiological, antioxidant potential and metals accumulation in potato grown in metals contaminated soil》。云南师范大学马铃薯研究院王洪洋博士为第一作者。

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Abstract

To solve the problem of excessive heavy metals in farmland soil, there is a dire need for research effort to screen for the soil passivator materials. This study aimed to develop a practical novel approach for improving the potato growth and remedial effectiveness of the metals by optimal combination and dosage of various passivators. Experimental treatments were comprised of various levels of passivating agents (sepiolite, quicklime and calcium magnesium phosphate) in individual and combined form. Results showed that application of passivating agents significantly enhanced growth by optimizing photosynthetic attributes, enzymatic antioxidants, and soil health. Balanced application of passivators effectively reduce the bioavailability of metals, curbing their uptake by potato plants. Sole application of all the agents results statistically similar outcomes as compared with combined form. Additionally, passivators indirectly enhance the activity of essential antioxidant enzymes. Synergistic effect of all the agents significantly improved the tuber quality by decreasing the accumulation of proline, malondialdehyde content, and bioaccumulation of Cu, Pb, Cd, and As in potato parts. In crux, combined usage of passivating agents proved to be of better growth, improvement in antioxidative defense system, and better quality of potato. By mitigating heavy metal contamination, passivators not only enhance crop quality and yield but also ensure heavy metal-free potatoes that meet stringent food safety standards.

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