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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (30): 97-104.doi: 10.11924/j.issn.1000-6850.casb2025-0412

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Research Progress of Plant-microbe Remediation for Cd Contaminated Soil

WANG Xiang1,2(), SU Sheng1,2, MAO Wei1,2, CHEN Ming1,2, LIU Xianglin1,2, YANG Tianming1,2, CHU Hongyuan1,2, XU Xunyan1,2()   

  1. 1 Yangzhou Cultivated Land Quality Protection Station, Yangzhou, Jiangsu 225000
    2 Key Laboratory of Cultivated Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs, Yangzhou, Jiangsu 225000
  • Received:2025-05-19 Revised:2025-09-10 Online:2025-10-25 Published:2025-11-04

Abstract:

Cadmium pollution has become a major global challenge to farmland safety, and safeguarding the quality of farmland is of paramount importance. This paper examined the sources and speciation of cadmium in soil, summarized the efficacy and mechanisms of plant-microbe systems in remediating cadmium-contaminated soils, including root interaction, metabolite regulation and cadmium speciation transformation. This study introduced the primary sources and characteristics of both plants and microorganisms in such synergistic systems, and elucidated the underlying remediation mechanisms as well as key influencing factors. Owing to the synergistic interactions between plants and microorganisms, the combined remediation system demonstrated superior efficiency in remediating cadmium-contaminated soils compared to individual remediation approaches. Finally, in view of the future research direction, it is recommended to introduce eco-friendly functional materials (such as biochar, nanomaterials, etc.) in order to provide efficient and environmentally friendly technical solutions for the remediation of cadmium-contaminated soil.

Key words: plant-microbe combined remediation, cadmium-contaminated soil, remediation mechanism, functional microbiome