Microbes: a potential tool for selenium biofortification

文献类型： 外文期刊

第一作者： Yang, Dandan

作者： Yang, Dandan;Hu, Chengxiao;Li, Yanfeng;Fei, Yuchen;Song, Yinran;Zhao, Xiaohu;Wang, Xu;Zhao, Xiaohu;Shi, Guangyu

作者机构：

关键词： selenium; biofortification; soil-plant system; microbes; rhizobacteria; endophyte

期刊名称：METALLOMICS （ 影响因子：4.636； 五年影响因子：4.828 ）

ISSN： 1756-5901

年卷期： 2021 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Selenium (Se) is a component of many enzymes and indispensable for human health due to its characteristics of reducing oxidative stress and enhancing immunity. Human beings take Se mainly from Se-containing crops. Taking measures to biofortify crops with Se may lead to improved public health. Se accumulation in plants mainly depends on the content and bioavailability of Se in soil. Beneficial microbes may change the chemical form and bioavailability of Se. This review highlights the potential role of microbes in promoting Se uptake and accumulation in crops and the relatedmechanisms. The potential approaches of microbial enhancement of Se biofortification can be summarized in the following four aspects: (1) microbes alter soil properties and impact the redox chemistry of Se to improve the bioavailability of Se in soil; (2) beneficial microbes regulate root morphology and stimulate the development of plants through the release of certain secretions, facilitating Se uptake in plants; (3) microbes upregulate the expression of certain genes and proteins that are related to Se metabolism in plants; and (4) the inoculation of microbes give rise to the generation of certain metabolites in plants contributing to Se absorption. Considering the ecological safety and economic feasibility, microbial enhancement is a potential tool for Se biofortification. For further study, the recombination and establishment of synthesis microbes is of potential benefit in Se-enrichment agriculture.

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