Journal of Agricultural Science and Technology ›› 2023, Vol. 25 ›› Issue (8): 10-21.DOI: 10.13304/j.nykjdb.2022.0580

• BIOTECHNOLOGY & LIFE SCIENCE • Previous Articles    

Progress of Research on the Effect of Sulfur on Cadmium Uptake and Accumulation by Plants and Its Mechanism

Liying YANG(), Mengya TAI, Yeyu ZHAI, Zicheng XU, Wuxing HUANG()   

  1. College of Tobacco,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2022-07-11 Accepted:2022-09-03 Online:2023-08-20 Published:2023-09-07
  • Contact: Wuxing HUANG

硫对植物吸收积累镉的影响及其作用机制研究进展

杨丽莹(), 邰孟雅, 翟夜雨, 许自成, 黄五星()   

  1. 河南农业大学烟草学院,郑州 450002
  • 通讯作者: 黄五星
  • 作者简介:杨丽莹 E-mail: yanglying@126.com
  • 基金资助:
    江苏中烟工业有限责任公司科技项目(20220729);河南省科技攻关项目(202102310026)

Abstract:

Cadmium is classified as a hazardous substance of global significance by the United Nations Environment Programme, and soil cadmium pollution seriously threatens plant growth and endangers human health. Exogenous sulfur affects the uptake and accumulation of cadmium by plants, but the effect of different forms and content of sulfur on the uptake and accumulation of cadmium by different plants varies greatly. Therefore, the effects of different forms and content of sulfur on the uptake and accumulation of cadmium by crops (Oryza sativa, Triticum aestivum, Brassica chinensis, Amaranshus mangostanus, Nicotiana tabacum) and Cd-hyperaccumulation plants (Sedum plumbizincicola, Solanum nigrum) were reviewed. Subsequently, the possible mechanisms of action were summarized in terms of the effectiveness of soil Cd (sulfur affects soil pH and cadmium adsorption), the uptake of Cd by plant roots (sulfur affects the transcription levels of metal transporters, and the formation of root hair and iron plaque) and the distribution and accumulation of Cd in plants (sulfur affects root cell wall adsorption and vacuolar compartment). Finally, strategies for sulfur application to reduce crops and increase hyperaccumulation plants Cd uptake and accumulation were explored. The result provided a theoretical basis for improving crop safety and remediating soil cadmium contamination.

Key words: cadmium, sulfur, uptake, accumulation, crops, hypertolerant plants

摘要:

镉被联合国环境规划署列为具有全球意义的危害物质,土壤镉污染严重威胁植物生长并危害人体健康。外源硫影响植物对镉的吸收与积累,但不同形态和用量的硫对不同植物吸收积累镉的作用效果存在较大差异。综述了不同形态和用量硫对农作物(水稻、小麦、蔬菜、烟草)和镉富集植物(伴矿景天、龙葵)吸收积累镉的影响,从土壤镉的有效性(硫影响土壤pH和土壤对镉的吸附)、植物根系对镉的吸收(硫影响植物金属转运蛋白转录水平和根毛与铁膜的形成)和镉在植物内的分配积累(硫影响根细胞壁吸附和液泡区隔)3方面总结了其可能的作用机制,探讨了降低农作物和增加超富集植物镉吸收积累的施硫策略,以期为提高农作物安全性和修复土壤镉污染提供理论依据。

关键词: 镉, 硫, 吸收, 积累, 农作物, 镉富集植物

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