Combination of High Zn Density and Low Phytic Acid for Improving Zn Bioavailability in Rice (Oryza stavia L.) Grain

文献类型： 外文期刊

第一作者： Wang, Yin

作者： Wang, Yin;Meng, Yusha;Ma, Yanping;Liu, Lei;Lai, Qixian;Wang, Yin;Meng, Yusha;Ma, Yanping;Liu, Lei;Lai, Qixian;Wu, Dianxing;Shu, Xiaoli;Pan, Liqing

作者机构：

关键词： Zinc (Zn); Bioavailability; Rice; Cross-breeding; Biofortification

期刊名称：RICE （ 影响因子：4.783； 五年影响因子：5.23 ）

ISSN： 1939-8425

年卷期： 2021 年 14 卷 1 期

页码：

收录情况： SCI

摘要： Background Zn deficiency is one of the leading public health problems in the world. Staple food crop, such as rice, cannot provide enough Zn to meet the daily dietary requirement because Zn in grain would chelate with phytic acid, which resulted in low Zn bioavailability. Breeding new rice varieties with high Zn bioavailability will be an effective, economic and sustainable strategy to alleviate human Zn deficiency. Results The high Zn density mutant LLZ was crossed with the low phytic acid mutant Os-lpa-XS110-1, and the contents of Zn and phytic acid in the brown rice were determined for the resulting progenies grown at different sites. Among the hybrid progenies, the double mutant always displayed significantly higher Zn content and lower phytic acid content in grain, leading to the lowest molar ratio of phytic acid to Zn under all environments. As assessed by in vitro digestion/Caco-2 cell model, the double mutant contained the relatively high content of bioavailable Zn in brown rice. Conclusions Our findings suggested pyramiding breeding by a combination of high Zn density and low phytic acid is a practical and useful approach to improve Zn bioavailability in rice grain.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序