Revealing the Mechanistic Basis of Regulation of Phosphorus Uptake in Soybean (Glycine max) Roots by Molybdenum: An Integrated Omics Approach

文献类型： 外文期刊

第一作者： Qin, Xiaoming

作者： Qin, Xiaoming;Hao, Songlan;Hu, Chengxiao;Tan, Qiling;Wu, Songwei;Sun, Xuecheng;Yu, Min;Shabala, Sergey;Shabala, Sergey;Shabala, Sergey;Xu, Shoujun;Sun, Jingguo;Sun, Xuecheng;Sun, Xuecheng

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关键词： molybdenum; phosphorus; soybean; transcriptome; metabolome; root exudates; organic acid; acid phosphatase

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 37 期

页码：

收录情况： SCI

摘要： While molybdenum (Mo) application can improve phosphorus (P) availability to plants by changing P speciation in the rhizosphere, the mechanistic basis of this process remains unclear. This work investigated the impact of various combinations of Mo and P treatments on root morphology, P and Mo uptake, and root transcriptome and metabolome. Mo application significantly increased soybean biomass and the number of lateral roots at both low (5 mu mol) or normal (500 mu mol) P levels and significantly improved P concentration and accumulation in Normal P treatment. Compared with the Normal P treatment, Low P significantly increased the number of roots, root surface area, and root acid phosphatase secretion. A total of 6811 Mo-responsive differentially expressed genes and 135 differential metabolites were identified at two P levels. At Low P, transcriptional changes significantly increased root synthesis and secretion of succinic acid, methylmalonic acid, and other organic acids as well as acid phosphatase, thereby increasing the conversion of soil aluminum-bound P and organic P into available P. At Normal P, Mo application increased P uptake mainly by increasing the number of lateral roots. Thus, Mo helps crops adapt to different P levels by regulating root anatomy and transcriptional and metabolic profiles of their roots.

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