Bio-organic fertilizer facilitated phytoremediation of heavy metal(loid)s-contaminated saline soil by mediating the plant-soil-rhizomicrobiota interactions

Liu, Tai; Wang, Qian; Li, Yongchao; Chen, Yunong; Jia, Bingbing; Zhang, Jingxia; Guo, Wei; Li, Frank Yonghong

doi:10.1016/j.scitotenv.2024.171278

Cited by 8 publications

(1 citation statement)

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“…In the strategy of biochar-ryegrass immobilization for remediating uranium-contaminated soil, rhizosphere microorganisms not only directly participate in uranium immobilization but also enhance ryegrass's immobilization of uranium by alleviating plant stress and promoting plant growth. 44 To verify whether changes in the bacterial community led to variations in soil metabolism, untargeted metabolomics were conducted. In this study, a total of 2916 metabolites were co-identified (Figure 5A).…”

Section: Changes Of the Soil Metabolic Profilementioning

confidence: 99%

Impact of Biochar Addition Levels on Remediation of Uranium-Stressed Soil: Evidence from 16S rDNA and Metabolomics

Feng,

Wang,

Wang

et al. 2024

ACS EST Eng.

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The addition of soil amendments to facilitate plantbased remediation of soil contaminated with radioactive nuclides is considered a promising approach. Here, we tested different levels of biochar to help clean uranium-contaminated soil in the potted plants. Adding 1% biochar had the best results in deactivating uranium, increasing soil enzyme activity, and promoting ryegrass growth. Microbiological and metabolomic analysis further revealed that 1 wt % biochar significantly enhanced the abundance of microorganisms such as Actinobacteriota and Myxococcota and accelerated the production of differential metabolites such as lipids and lipid-like molecules, organic acids and derivatives, and organic oxygen compounds. The analysis of biological and nonbiological interaction networks indicates that the coordinated interaction between bacteria, enzymes, and metabolites significantly improves the expression level of the ABC transporter's metabolic pathway. This enhances the resistance of living cells to uranium and maintains system homeostasis under uranium stress. This study provides an example of the application of biochar-assisted phytoremediation and offers theoretical guidance for the remediation of soil contaminated with radioactive nuclides.

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Section: Changes Of the Soil Metabolic Profilementioning

confidence: 99%