Improved Zn bioavailability by its enhanced colocalization and speciation with S in wheat grain tissues after N addition
文献类型: 外文期刊
第一作者: Wang, Xingshu
作者: Wang, Xingshu;Guo, Zikang;Hui, Xiaoli;Wang, Zhaohui;Shi, Mei;Wang, Xingshu;Guo, Zikang;Hui, Xiaoli;Wang, Zhaohui;Shi, Mei;Wang, Runze;Wang, Sen;Kopittke, Peter M.
作者机构:
关键词: Wheat grain; Nitrogen; Zinc biofortification; Sulfur; Synchrotron; Bioavailability
期刊名称:FOOD CHEMISTRY ( 影响因子:8.8; 五年影响因子:8.6 )
ISSN: 0308-8146
年卷期: 2023 年 404 卷
页码:
收录情况: SCI
摘要: Zinc bioavailability with the presence of other elements in wheat grains might be affected by fertilizers. A long-term field experiment was conducted to examine effects of N fertilizer on Zn bioavailability in wheat grain tissues, with changes in the concentrations, distribution, and speciation of Zn as well as P and sulfur S via synchrotron-based technology. Results showed that addition of N fertilizer was associated with changes in Zn concentrations and distributions in grain tissues, especially in the crease region and endosperm. Simultaneously, N addition enhanced Zn-S colocalization in the crease region and endosperm and lowered the P/Zn ratio and Zn-P colocalization. Addition of N fertilizer with P increased Zn-cysteine (9.2%) and decreased Zn-phytate (47.3%) in the crease region, leading to potentially higher grain Zn bioavailability. Thus, addition of N fertilizer improved concentrations and bioavailability of Zn, by coordinating the relationships among Zn, P and S within wheat grains.
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