Effects of selenium-cadmium interactions on soil cadmium forms and the enrichment of selenium and cadmium in rice

文献类型： 外文期刊

第一作者： Lu, Tianyi

作者： Lu, Tianyi;He, Yong;Ai, Yanmei;Na, Meng;Xu, Shangqi;Zhou, Jihai;Cheng, Kun;Li, Daming

作者机构：

关键词： Selenium-cadmium interactions; Rice; Cadmium forms; Enrichment and transport; Synergy and antagonism

期刊名称：PLANT AND SOIL （ 影响因子：4.1； 五年影响因子：4.7 ）

ISSN： 0032-079X

年卷期： 2025 年

页码：

收录情况： SCI

摘要： AimsThe relationship between selenium (Se) and cadmium (Cd) is a commonly observed phenomenon in nature, making it a hot research topic. Se, an essential trace element for human biology, frequently coexists in soil alongside hazardous heavy metal Cd. The challenging objective of ensuring Se enrichment in crops while minimising the detrimental effects of Cd in Se-rich soils has emerged as a prominent research theme.MethodsIn this study, rice was used as the experimental model to investigate the impact of low (0.2 mgkg-1), medium (1.0 mgkg-1) and high (5.0 mgkg-1) concentrations of Se, as well as low (0.5 mgkg-1), medium (2.5 mgkg-1) and high (10.0 mgkg-1) concentrations of Cd, on the enrichment and distribution of Cd and Se in several parts of rice crops.ResultsThe findings demonstrated that the dynamics between different concentrations of Se and low concentrations of Cd considerably reduced Cd enrichment in brown rice, ultimately reaching a state of no Cd enrichment. At medium and high Se concentrations, the higher the Cd concentration, the more pronounced the inhibition of Se enrichment in brown rice. When 0.2 mgkg-1 Se interacted with 0.5 mgkg-1 Cd, brown rice fulfilled the standards for being Se-rich, Cd-free and safe for consumption.ConclusionsSe and Cd exhibited a synergistic effect at low concentrations, whereas revealed an antagonistic effect at medium and high concentrations on Se and Cd enrichment in brown rice.

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