Articles | Volume 22, issue 6
https://doi.org/10.5194/bg-22-1543-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-1543-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Mar 2025
Research article |
| 24 Mar 2025
| 24 Mar 2025
Dissolved organic matter fosters core mercury-methylating microbiomes for methylmercury production in paddy soils
Qiang Pu
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
Bo Meng
CORRESPONDING AUTHOR
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
Jen-How Huang
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
Kun Zhang
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
University of Chinese Academy of Sciences, Beijing, 100049, China
Jiang Liu
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
Yurong Liu
State Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
Mahmoud A. Abdelhafiz
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
University of Chinese Academy of Sciences, Beijing, 100049, China
Geology Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
Xinbin Feng
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
University of Chinese Academy of Sciences, Beijing, 100049, China
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Cited
12 citations as recorded by crossref.
- Overlooked role of soil microbial-derived carbon in promoting neurotoxic methylmercury production M. Yang et al. https://doi.org/10.1016/j.jhazmat.2026.141407
- Methane cycling microbes are important predictors of methylmercury accumulation in rice paddies R. Zhang et al. https://doi.org/10.1128/aem.02028-25
- River transport of Hg as a potential contamination pathway for sediments, soils and vegetation: management practices M. Kobierski et al. https://doi.org/10.1016/j.jenvman.2025.127133
- Biogeochemical mechanisms of cadmium-promoted mercury methylation in paddy soils Q. PU & B. MENG https://doi.org/10.3724/j.issn.1007-2802.20250126
- Carbon and Nitrogen mediated denitrification modulates the methylation process of mercury in lake sediments D. Zhu et al. https://doi.org/10.1016/j.psep.2026.108522
- Spatial heterogeneity of methylmercury in plateau wetland: Driving forces from the decomposition of different aquatic plants R. Ni et al. https://doi.org/10.1016/j.envres.2026.124048
- Coupling of carbon and mercury in paddy soil: From the perspective of carbon emissions J. LIU & B. MENG https://doi.org/10.3724/j.issn.1007-2802.20250110
- Mercury methylation network on microplastics: Multipathway coupling, regulatory mechanisms, and environmental risks Y. He et al. https://doi.org/10.1016/j.watres.2026.125761
- Contamination and risk assessments of mercury in tailing and sediment from Birim river along artisanal and small-scale gold mining communities, Ghana M. Boohene et al. https://doi.org/10.1080/15320383.2026.2635583
- Speciation-Driven Toxicity and Remediation of Mercury: Mechanistic Insights and Policy Implications N. Shah et al. https://doi.org/10.1016/j.hazadv.2026.101233
- Spectroscopic Evidence of Soil Carbon and DOM Transformation Across an 8–63-Year Paddy Chronosequence in Western Jilin, China Q. Liu et al. https://doi.org/10.3390/agronomy15122688
- Pioneer area construction reduces methylmercury production in mercury-contaminated paddy soils P. Ma et al. https://doi.org/10.1016/j.envres.2025.122718
12 citations as recorded by crossref.
- Overlooked role of soil microbial-derived carbon in promoting neurotoxic methylmercury production M. Yang et al. https://doi.org/10.1016/j.jhazmat.2026.141407
- Methane cycling microbes are important predictors of methylmercury accumulation in rice paddies R. Zhang et al. https://doi.org/10.1128/aem.02028-25
- River transport of Hg as a potential contamination pathway for sediments, soils and vegetation: management practices M. Kobierski et al. https://doi.org/10.1016/j.jenvman.2025.127133
- Biogeochemical mechanisms of cadmium-promoted mercury methylation in paddy soils Q. PU & B. MENG https://doi.org/10.3724/j.issn.1007-2802.20250126
- Carbon and Nitrogen mediated denitrification modulates the methylation process of mercury in lake sediments D. Zhu et al. https://doi.org/10.1016/j.psep.2026.108522
- Spatial heterogeneity of methylmercury in plateau wetland: Driving forces from the decomposition of different aquatic plants R. Ni et al. https://doi.org/10.1016/j.envres.2026.124048
- Coupling of carbon and mercury in paddy soil: From the perspective of carbon emissions J. LIU & B. MENG https://doi.org/10.3724/j.issn.1007-2802.20250110
- Mercury methylation network on microplastics: Multipathway coupling, regulatory mechanisms, and environmental risks Y. He et al. https://doi.org/10.1016/j.watres.2026.125761
- Contamination and risk assessments of mercury in tailing and sediment from Birim river along artisanal and small-scale gold mining communities, Ghana M. Boohene et al. https://doi.org/10.1080/15320383.2026.2635583
- Speciation-Driven Toxicity and Remediation of Mercury: Mechanistic Insights and Policy Implications N. Shah et al. https://doi.org/10.1016/j.hazadv.2026.101233
- Spectroscopic Evidence of Soil Carbon and DOM Transformation Across an 8–63-Year Paddy Chronosequence in Western Jilin, China Q. Liu et al. https://doi.org/10.3390/agronomy15122688
- Pioneer area construction reduces methylmercury production in mercury-contaminated paddy soils P. Ma et al. https://doi.org/10.1016/j.envres.2025.122718
Saved (final revised paper)
Latest update: 30 May 2026
Short summary
This study examines the effect of dissolved organic matter (DOM) on microbial mercury (Hg) methylation in paddy soils. It uncovers that DOM regulates Hg methylation mainly through altering core Hg-methylating microbiome composition and boosting the growth of core Hg-methylating microorganisms. The study highlights that in the regulation of methylmercury formation in paddy soils, more attention should be paid to changes in DOM concentration and composition.
This study examines the effect of dissolved organic matter (DOM) on microbial mercury (Hg)...
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