State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, Guangdong, PR China.
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
Chemosphere. 2021 Jun;273:129690. doi: 10.1016/j.chemosphere.2021.129690. Epub 2021 Jan 21.
Cadmium (Cd) is a primary contaminant in agricultural soils of the world. The ability of Cd uptake, transport, detoxification, and accumulation varies among different plant species and genotypes. Cd is translocated from soil to root by different transporters which are used for essential plant nutrient uptake. A number of strategies have been suggested for decreasing Cd toxicity in Cd contaminated soils. Recently, a lot of research have been carried out on minimizing Cd uptake through selenium (Se) and silicon (Si) applications. Both Se and Si have been reported to mitigate Cd toxicity in different crops. Vacuolar sequestration, formation of phytochelatins, and cell wall adsorption have been reported as effective mechanisms for Cd detoxification. The present review discussed past and current knowledge of literature to better understand Cd toxicity and its mitigation by adopting different feasible and practical approaches.
镉（Cd）是世界农业土壤中的主要污染物。不同植物物种和基因型对镉的吸收、运输、解毒和积累能力有所不同。镉通过不同的转运蛋白从土壤转移到根部，这些转运蛋白用于吸收必需的植物养分。已经提出了许多策略来减少镉污染土壤中的镉毒性。最近，大量研究致力于通过施用硒（Se）和硅（Si）来最小化镉的吸收。已有报道称，Se 和 Si 可减轻不同作物的镉毒性。液泡隔离、植物螯合肽的形成和细胞壁吸附已被报道为有效的镉解毒机制。本综述讨论了过去和当前的文献知识，以更好地理解镉毒性及其通过采用不同可行和实用的方法来减轻的毒性。
