{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T20:56:43Z","timestamp":1792616203877,"version":"4.5.0"},"reference-count":95,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T00:00:00Z","timestamp":1793491200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42394092"],"award-info":[{"award-number":["42394092"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Environmental Research"],"published-print":{"date-parts":[[2026,11]]},"DOI":"10.1016\/j.envres.2026.125864","type":"journal-article","created":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T15:08:01Z","timestamp":1791644881000},"page":"125864","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"P2","title":["The divergent roles of humic- and fulvic-acid DOM in regulating Hg methylation\/demethylation in paddy soils"],"prefix":"10.1016","volume":"309","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7640-7067","authenticated-orcid":false,"given":"Mahmoud A.","family":"Abdelhafiz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo","family":"Meng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiang","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhengdong","family":"Hao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7462-8998","authenticated-orcid":false,"given":"Xinbin","family":"Feng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.envres.2026.125864_bib1","doi-asserted-by":"crossref","DOI":"10.1016\/j.envpol.2023.121237","article-title":"DOM influences Hg methylation in paddy soils across a Hg contamination gradient","volume":"322","author":"Abdelhafiz","year":"2023","journal-title":"Environ. Pollut."},{"key":"10.1016\/j.envres.2026.125864_bib2","doi-asserted-by":"crossref","first-page":"8187","DOI":"10.1021\/acs.est.9b01502","article-title":"Microbial biosynthesis of thiol compounds: implications for speciation, cellular uptake, and methylation of Hg(II)","volume":"53","author":"Adediran","year":"2019","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib3","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1080\/10643389.2010.530934","article-title":"Dissolved organic matter in the Florida everglades: implications for ecosystem restoration","volume":"41","author":"Aiken","year":"2011","journal-title":"Crit. Rev. Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib4","doi-asserted-by":"crossref","first-page":"690","DOI":"10.1021\/es011044q","article-title":"Association of methylmercury with dissolved humic acids","volume":"36","author":"Amirbahman","year":"2002","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib5","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2021.149967","article-title":"Unravelling the interactive effect of soil and atmospheric mercury influencing mercury distribution and accumulation in the soil-rice system","volume":"803","author":"Aslam","year":"2022","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib6","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1016\/j.scitotenv.2019.04.111","article-title":"Mercury and methylmercury concentrations, sources and distribution in submarine canyon sediments (Capbreton, SW France): implications for the net methylmercury production","volume":"673","author":"Azaroff","year":"2019","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib7","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2020.137647","article-title":"Recent advances in understanding and measurement of mercury in the environment: terrestrial Hg cycling","volume":"721","author":"Bishop","year":"2020","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib8","doi-asserted-by":"crossref","DOI":"10.1038\/ncomms14255","article-title":"Molecular composition of organic matter controls methylmercury formation in boreal lakes","volume":"8","author":"Bravo","year":"2017","journal-title":"Nat. Commun."},{"key":"10.1016\/j.envres.2026.125864_bib9","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1097\/SS.0000000000000057","article-title":"Changes in chemical composition and spectral characteristics of dissolved organic matter from soils induced by biodegradation","volume":"179","author":"Bu","year":"2014","journal-title":"Soil Sci."},{"key":"10.1016\/j.envres.2026.125864_bib10","doi-asserted-by":"crossref","first-page":"2045","DOI":"10.1016\/0016-7037(84)90385-5","article-title":"Effects of age on the chemical structure of paleosol humic acids and fulvic acids","volume":"48","author":"Calderoni","year":"1984","journal-title":"Geochem. Cosmochim. Acta"},{"key":"10.1016\/j.envres.2026.125864_bib11","doi-asserted-by":"crossref","first-page":"1464","DOI":"10.1039\/c1em10103j","article-title":"Effects of fulvic substances on the distribution and migration of Hg in landfill leachate","volume":"13","author":"Chai","year":"2011","journal-title":"J. Environ. Monit."},{"key":"10.1016\/j.envres.2026.125864_bib12","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.jhazmat.2011.12.077","article-title":"Complexion between mercury and humic substances from different landfill stabilization processes and its implication for the environment","volume":"209\u2013210","author":"Chai","year":"2012","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib13","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2023.132457","article-title":"The divergent effects of nitrate and ammonium application on mercury methylation, demethylation, and reduction in flooded paddy slurries","volume":"460","author":"Chen","year":"2023","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib14","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2025.138560","article-title":"Occurrence and controlling factors of methylmercury in non-contaminated Cambodian rice paddy soils","volume":"494","author":"Chuong","year":"2025","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib15","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1289\/ehp.9310031","article-title":"Mercury: major issues in environmental health","volume":"100","author":"Clarkson","year":"1993","journal-title":"Environ. Health Perspect."},{"key":"10.1016\/j.envres.2026.125864_bib16","doi-asserted-by":"crossref","first-page":"4535","DOI":"10.5194\/bg-16-4535-2019","article-title":"Comparisons of dissolved organic matter and its optical characteristics in small low and high Arctic catchments","volume":"16","author":"Coch","year":"2019","journal-title":"Biogeosciences"},{"key":"10.1016\/j.envres.2026.125864_bib17","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2022.128593","article-title":"Characterization of mercury binding to different molecular weight fractions of dissolved organic matter","volume":"431","author":"Cui","year":"2022","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib18","doi-asserted-by":"crossref","first-page":"324","DOI":"10.1021\/acsenvironau.1c00061","article-title":"Source apportionment of speciated Mercury in Chinese rice grain using a high-resolution model","volume":"2","author":"Cui","year":"2022","journal-title":"ACS Environ. Au"},{"key":"10.1016\/j.envres.2026.125864_bib19","doi-asserted-by":"crossref","DOI":"10.1016\/j.envres.2025.122358","article-title":"Key factors of mercury methylation and methylmercury accumulation in paddy soils","volume":"285","author":"Ding","year":"2025","journal-title":"Environ. Res."},{"key":"10.1016\/j.envres.2026.125864_bib20","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1021\/es0715851","article-title":"Do potential methylation rates reflect accumulated methyl Mercury in contaminated sediments?","volume":"42","author":"Drott","year":"2008","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib21","doi-asserted-by":"crossref","DOI":"10.1016\/j.envpol.2020.116369","article-title":"Effect of organic matter concentration and characteristics on mercury mobilization and methylmercury production at an abandoned mine site","volume":"271","author":"Eckley","year":"2021","journal-title":"Environ. Pollut."},{"key":"10.1016\/j.envres.2026.125864_bib22","doi-asserted-by":"crossref","first-page":"326","DOI":"10.1021\/es071948x","article-title":"Human exposure to methylmercury through rice intake in Mercury mining areas, Guizhou Province, China","volume":"42","author":"Feng","year":"2008","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib23","doi-asserted-by":"crossref","first-page":"2715","DOI":"10.1021\/es203658f","article-title":"Dissolved organic matter enhances microbial Mercury methylation under sulfidic conditions","volume":"46","author":"Graham","year":"2012","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib24","doi-asserted-by":"crossref","first-page":"5746","DOI":"10.1021\/es400414a","article-title":"Effect of dissolved organic matter source and character on microbial Hg methylation in Hg\u2013S\u2013DOM solutions","volume":"47","author":"Graham","year":"2013","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib25","first-page":"1479","volume":"108","author":"Gu","year":"2011"},{"key":"10.1016\/j.envres.2026.125864_bib26","doi-asserted-by":"crossref","first-page":"3564","DOI":"10.1021\/es025699i","article-title":"Binding of Mercury(II) to dissolved organic matter: the role of the Mercury-to-DOM concentration ratio","volume":"36","author":"Haitzer","year":"2002","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib27","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2023.167601","article-title":"Relative importance of aceticlastic methanogens and hydrogenotrophic methanogens on mercury methylation and methylmercury demethylation in paddy soils","volume":"906","author":"Hao","year":"2024","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib28","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1007\/s00128-018-2523-1","article-title":"Mercury\u2013organic matter interactions in soils and sediments: Angel or devil?","volume":"102","author":"He","year":"2019","journal-title":"Bull. Environ. Contam. Toxicol."},{"key":"10.1016\/j.envres.2026.125864_bib29","doi-asserted-by":"crossref","first-page":"955","DOI":"10.4319\/lo.2008.53.3.0955","article-title":"Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter","volume":"53","author":"Helms","year":"2008","journal-title":"Limnol. Oceanogr."},{"key":"10.1016\/j.envres.2026.125864_bib30","doi-asserted-by":"crossref","first-page":"2204","DOI":"10.1002\/etc.5620190909","article-title":"Constants of Mercury methylation and demethylation rates in sediments and comparison of tracer and ambient mercury availability","volume":"19","author":"Hintelmann","year":"2000","journal-title":"Environ. Toxicol. Chem."},{"key":"10.1016\/j.envres.2026.125864_bib31","doi-asserted-by":"crossref","DOI":"10.1016\/j.seh.2023.100022","article-title":"Effects of dissolved organic matter on mercury speciation in rice rhizosphere amended with sulfur-rich biochar","volume":"1","author":"Hu","year":"2023","journal-title":"Soil Environ. Health"},{"key":"10.1016\/j.envres.2026.125864_bib32","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2019.121967","article-title":"Shifts in mercury methylation across a peatland chronosequence: from sulfate reduction to methanogenesis and syntrophy","volume":"387","author":"Hu","year":"2020","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib33","doi-asserted-by":"crossref","DOI":"10.1016\/j.envpol.2023.121415","article-title":"Elevated methylmercury production in mercury-contaminated paddy soil resulted from the favorable dissolved organic matter variation created by algal decomposition","volume":"324","author":"Hu","year":"2023","journal-title":"Environ. Pollut."},{"key":"10.1016\/j.envres.2026.125864_bib34","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1016\/j.watres.2018.08.054","article-title":"Influence of dissolved organic matter (DOM) characteristics on dissolved mercury (Hg) species composition in sediment porewater of lakes from southwest China","volume":"146","author":"Jiang","year":"2018","journal-title":"Water Res."},{"key":"10.1016\/j.envres.2026.125864_bib35","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1016\/j.jes.2019.11.007","article-title":"Linking the electron donation capacity to the molecular composition of soil dissolved organic matter from the Three Gorges Reservoir areas, China","volume":"90","author":"Jiang","year":"2020","journal-title":"J. Environ. Sci."},{"key":"10.1016\/j.envres.2026.125864_bib36","doi-asserted-by":"crossref","DOI":"10.1016\/j.watres.2019.115217","article-title":"The concentrations and characteristics of dissolved organic matter in high-latitude lakes determine its ambient reducing capacity","volume":"169","author":"Jiang","year":"2020","journal-title":"Water Res."},{"key":"10.1016\/j.envres.2026.125864_bib37","doi-asserted-by":"crossref","first-page":"844","DOI":"10.1021\/es051085c","article-title":"Binding constants of Divalent Mercury (Hg2+) in soil humic acids and soil organic matter","volume":"40","author":"Khwaja","year":"2006","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib38","series-title":"Proceedings of the 14th International Peat Congress","article-title":"Changes of peat humic acid properties during peat genesis process","author":"Klavins","year":"2012"},{"key":"10.1016\/j.envres.2026.125864_bib39","doi-asserted-by":"crossref","first-page":"1663","DOI":"10.1039\/D4EM00183D","article-title":"Critical review of fluorescence and absorbance measurements as surrogates for the molecular weight and aromaticity of dissolved organic matter","volume":"26","author":"Korak","year":"2024","journal-title":"Environ. Sci. Process. Impacts"},{"key":"10.1016\/j.envres.2026.125864_bib40","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1002\/2017GB005824","article-title":"Present and future mercury concentrations in Chinese rice: insights from modeling","volume":"32","author":"Kwon","year":"2018","journal-title":"Glob. Biogeochem. Cycles"},{"key":"10.1016\/j.envres.2026.125864_bib41","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/j.watres.2018.09.048","article-title":"New insight into the applicability of spectroscopic indices for dissolved organic matter (DOM) source discrimination in aquatic systems affected by biogeochemical processes","volume":"147","author":"Lee","year":"2018","journal-title":"Water Res."},{"key":"10.1016\/j.envres.2026.125864_bib42","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1038\/nature16069","article-title":"The contentious nature of soil organic matter","volume":"528","author":"Lehmann","year":"2015","journal-title":"Nature"},{"key":"10.1016\/j.envres.2026.125864_bib43","doi-asserted-by":"crossref","first-page":"963","DOI":"10.1021\/acs.est.7b00377","article-title":"Molecular chemodiversity of dissolved organic matter in Paddy soils","volume":"52","author":"Li","year":"2018","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib44","doi-asserted-by":"crossref","first-page":"3678","DOI":"10.1021\/acs.est.6b04622","article-title":"Thermodynamic modeling of the solubility and chemical speciation of mercury and methylmercury driven by organic thiols and micromolar sulfide concentrations in boreal wetland soils","volume":"51","author":"Liem-Nguyen","year":"2017","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib45","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2020.142666","article-title":"Methylmercury formation in boreal wetlands in relation to chemical speciation of mercury(II) and concentration of low molecular mass thiols","volume":"755","author":"Liem-Nguyen","year":"2021","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib46","doi-asserted-by":"crossref","first-page":"8149","DOI":"10.1021\/acs.est.3c02676","article-title":"Mercury and sulfur redox cycling affect methylmercury levels in rice paddy soils across a contamination gradient","volume":"57","author":"Liu","year":"2023","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib47","doi-asserted-by":"crossref","DOI":"10.1016\/j.envpol.2021.118321","article-title":"The underappreciated role of natural organic matter bond Hg(II) and nanoparticulate HgS as substrates for methylation in paddy soils across a Hg concentration gradient","volume":"292","author":"Liu","year":"2022","journal-title":"Environ. Pollut."},{"key":"10.1016\/j.envres.2026.125864_bib48","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1016\/j.fmre.2021.04.003","article-title":"Stable isotope tracers identify sources and transformations of mercury in rice (Oryza sativa L.) growing in a mercury mining area","volume":"1","author":"Liu","year":"2021","journal-title":"Fundam. Res."},{"key":"10.1016\/j.envres.2026.125864_bib50","doi-asserted-by":"crossref","first-page":"18650","DOI":"10.1007\/s11356-020-08328-9","article-title":"Effects of mercury binding by humic acid and humic acid resistance on mercury stress in rice plants under high Hg\/humic acid concentration ratios","volume":"27","author":"Liu","year":"2020","journal-title":"Environ. Sci. Pollut. Res."},{"key":"10.1016\/j.envres.2026.125864_bib49","doi-asserted-by":"crossref","first-page":"13110","DOI":"10.1021\/acs.est.8b03052","article-title":"Unraveling microbial communities associated with methylmercury production in Paddy soils","volume":"52","author":"Liu","year":"2018","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib51","doi-asserted-by":"crossref","DOI":"10.1016\/j.cej.2019.123194","article-title":"Effects of humic acid and fulvic acid on the sequestration of copper and carbon during the iron oxide transformation","volume":"383","author":"Lu","year":"2020","journal-title":"Chem. Eng. J."},{"key":"10.1016\/j.envres.2026.125864_bib52","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2022.154356","article-title":"Binding of methylmercury to humic acids (HA): influence of solar radiation and sulfide addition reaction of HA","volume":"827","author":"Luo","year":"2022","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib53","doi-asserted-by":"crossref","first-page":"1893","DOI":"10.1080\/10643389.2019.1594517","article-title":"Mercury methylation by anaerobic microorganisms: a review","volume":"49","author":"Ma","year":"2019","journal-title":"Crit. Rev. Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib54","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/j.gca.2016.08.019","article-title":"Enhanced availability of mercury bound to dissolved organic matter for methylation in marine sediments","volume":"194","author":"Mazrui","year":"2016","journal-title":"Geochem. Cosmochim. Acta"},{"key":"10.1016\/j.envres.2026.125864_bib55","doi-asserted-by":"crossref","first-page":"4951","DOI":"10.1021\/jf904557x","article-title":"Distribution patterns of inorganic Mercury and methylmercury in tissues of rice (Oryza sativa L.) plants and possible bioaccumulation pathways","volume":"58","author":"Meng","year":"2010","journal-title":"J. Agric. Food Chem."},{"key":"10.1016\/j.envres.2026.125864_bib56","doi-asserted-by":"crossref","first-page":"2711","DOI":"10.1021\/es103384v","article-title":"The process of methylmercury accumulation in rice (Oryza sativa L.)","volume":"45","author":"Meng","year":"2011","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib57","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2021.148142","article-title":"Changes in structural characteristics of humic and fulvic acids under chlorination and their association with trihalomethanes and haloacetic acids formation","volume":"790","author":"Nguyen","year":"2021","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib58","first-page":"S44","article-title":"High methylmercury formation in ponds fueled by fresh humic and algal derived organic matter","volume":"63","author":"Ortega","year":"2018","journal-title":"Limnol. Oceanogr."},{"key":"10.1016\/j.envres.2026.125864_bib59","first-page":"748","article-title":"Effects of humic acid on behaviors of methylmercury in Hg-contaminated paddy soil","volume":"31","author":"Peng","year":"2015","journal-title":"J. Ecol. Rural Environ."},{"key":"10.1016\/j.envres.2026.125864_bib60","doi-asserted-by":"crossref","first-page":"1543","DOI":"10.5194\/bg-22-1543-2025","article-title":"Dissolved organic matter fosters core mercury-methylating microbiomes for methylmercury production in paddy soils","volume":"22","author":"Pu","year":"2025","journal-title":"Biogeosciences"},{"key":"10.1016\/j.envres.2026.125864_bib61","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2024.136481","article-title":"Key active mercury methylating microorganisms and their synergistic effects on methylmercury production in paddy soils","volume":"480","author":"Pu","year":"2024","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib62","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2022.129055","article-title":"Mercury drives microbial community assembly and ecosystem multifunctionality across a Hg contamination gradient in rice paddies","volume":"435","author":"Pu","year":"2022","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib63","doi-asserted-by":"crossref","DOI":"10.3390\/toxics11110942","article-title":"The effects of different soil component couplings on the methylation and bioavailability of mercury in soil","volume":"11","author":"Qin","year":"2023","journal-title":"Toxics"},{"key":"10.1016\/j.envres.2026.125864_bib64","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.jes.2022.02.023","article-title":"Effects of fulvic acid and humic acid from different sources on Hg methylation in soil and accumulation in rice","volume":"119","author":"Ran","year":"2022","journal-title":"J. Environ. Sci."},{"key":"10.1016\/j.envres.2026.125864_bib65","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1016\/j.chemosphere.2003.11.011","article-title":"Interactions between mercury and dissolved organic matter\u2013\u2013a review","volume":"55","author":"Ravichandran","year":"2004","journal-title":"Chemosphere"},{"key":"10.1016\/j.envres.2026.125864_bib66","doi-asserted-by":"crossref","first-page":"3305","DOI":"10.1021\/es9804058","article-title":"Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida everglades","volume":"32","author":"Ravichandran","year":"1998","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib67","series-title":"Developments in Soil Science","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0166-2481(08)70016-3","article-title":"Humic substances: chemistry and reactions","author":"Schnitzer","year":"1978"},{"key":"10.1016\/j.envres.2026.125864_bib68","series-title":"Humic Substances in the Environment","author":"Schnitzer","year":"1972"},{"key":"10.1016\/j.envres.2026.125864_bib69","doi-asserted-by":"crossref","first-page":"6728","DOI":"10.1038\/s41467-023-42463-4","article-title":"Dissolved organic matter thiol concentrations determine methylmercury bioavailability across the terrestrial-marine aquatic continuum","volume":"14","author":"Seelen","year":"2023","journal-title":"Nat. Commun."},{"key":"10.1016\/j.envres.2026.125864_bib70","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1002\/9781118146644.ch7","article-title":"Chemical speciation of mercury in soil and sediment","author":"Skyllberg","year":"2011","journal-title":"Environ. Chem. Toxicol. Mercury"},{"key":"10.1016\/j.envres.2026.125864_bib71","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1016\/j.envpol.2017.06.008","article-title":"Organic matter drives high interannual variability in methylmercury concentrations in a subarctic coastal sea","volume":"229","author":"Soerensen","year":"2017","journal-title":"Environ. Pollut."},{"key":"10.1016\/j.envres.2026.125864_bib72","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/10643389609388485","article-title":"Environmental distribution and transformation of mercury compounds","volume":"26","author":"Stein","year":"1996","journal-title":"Crit. Rev. Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib73","series-title":"Hamilton & Hardy's Industrial Toxicology","first-page":"157","article-title":"Mercury","author":"Stephen","year":"2015"},{"key":"10.1016\/j.envres.2026.125864_bib74","series-title":"Humus Chemistry: Genesis, Composition, Reactions","author":"Stevenson","year":"1994"},{"key":"10.1016\/j.envres.2026.125864_bib75","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1579\/0044-7447(2007)36[437:NMPAAB]2.0.CO;2","article-title":"Net methylmercury production as a basis for improved risk assessment of mercury-contaminated sediments. AMBIO","volume":"36","author":"Ulf","year":"2007","journal-title":"J. Human Environ."},{"key":"10.1016\/j.envres.2026.125864_bib76","series-title":"Method 1630 Methylmercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry CVAFS","year":"2001"},{"key":"10.1016\/j.envres.2026.125864_bib77","series-title":"Method 1631, Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry (EPA-821-R-02-019)","year":"2002"},{"key":"10.1016\/j.envres.2026.125864_bib78","series-title":"Methylmercury in Water, Distillation, Aqueous Ethylation, Purge & Trap, GC-Pyrolysis-CVAFS. (Based on Method 1630)","year":"2017"},{"key":"10.1016\/j.envres.2026.125864_bib79","doi-asserted-by":"crossref","first-page":"10133","DOI":"10.1021\/acs.est.0c07321","article-title":"Mobilization, methylation, and demethylation of mercury in a paddy soil under systematic redox changes","volume":"55","author":"Wang","year":"2021","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib80","doi-asserted-by":"crossref","first-page":"261","DOI":"10.2166\/nh.2016.218","article-title":"Comparison on soil organic carbon within two typical wetland areas along the vegetation gradient of Poyang Lake, China","volume":"47","author":"Wang","year":"2016","journal-title":"Hydrol. Res."},{"key":"10.1016\/j.envres.2026.125864_bib81","doi-asserted-by":"crossref","DOI":"10.1016\/j.scitotenv.2021.150979","article-title":"Binding strength of mercury (II) to different dissolved organic matter: the roles of DOM properties and sources","volume":"807","author":"Wang","year":"2022","journal-title":"Sci. Total Environ."},{"key":"10.1016\/j.envres.2026.125864_bib82","doi-asserted-by":"crossref","first-page":"13517","DOI":"10.1021\/acs.est.0c00268","article-title":"Methanogenesis is an important process in controlling MeHg concentration in rice paddy soils affected by mining activities","volume":"54","author":"Wu","year":"2020","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib83","doi-asserted-by":"crossref","DOI":"10.1016\/j.jhazmat.2023.133298","article-title":"Differential response of Hg-methylating and MeHg-demethylating microbiomes to dissolved organic matter components in eutrophic lake water","volume":"465","author":"Wu","year":"2024","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib84","doi-asserted-by":"crossref","DOI":"10.1016\/j.watres.2021.117652","article-title":"Fulvic acid: a key factor governing mercury bioavailability in a polluted plateau wetland","volume":"205","author":"Xu","year":"2021","journal-title":"Water Res."},{"key":"10.1016\/j.envres.2026.125864_bib85","doi-asserted-by":"crossref","first-page":"591","DOI":"10.1016\/j.jhazmat.2019.03.113","article-title":"Coupling metabolisms of arsenic and iron with humic substances through microorganisms in paddy soil","volume":"373","author":"Yi","year":"2019","journal-title":"J. Hazard Mater."},{"key":"10.1016\/j.envres.2026.125864_bib86","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1016\/j.jes.2018.04.028","article-title":"Effects of soil properties on production and bioaccumulation of methylmercury in rice paddies at a mercury mining area, China","volume":"68","author":"Yin","year":"2018","journal-title":"J. Environ. Sci."},{"key":"10.1016\/j.envres.2026.125864_bib87","doi-asserted-by":"crossref","first-page":"1183","DOI":"10.1289\/ehp.1001915","article-title":"In inland China, rice, rather than fish, is the major pathway for methylmercury exposure","volume":"118","author":"Zhang","year":"2010","journal-title":"Environ. Health Perspect."},{"key":"10.1016\/j.envres.2026.125864_bib88","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1016\/j.colsurfa.2008.11.006","article-title":"Adsorption and desorption of divalent mercury (Hg2+) on humic acids and fulvic acids extracted from typical soils in China","volume":"335","author":"Zhang","year":"2009","journal-title":"Colloids Surf. A Physicochem. Eng. Asp."},{"key":"10.1016\/j.envres.2026.125864_bib89","doi-asserted-by":"crossref","first-page":"6950","DOI":"10.1021\/es203181m","article-title":"Methylation of mercury by bacteria exposed to dissolved, nanoparticulate, and microparticulate mercuric sulfides","volume":"46","author":"Zhang","year":"2012","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib90","doi-asserted-by":"crossref","first-page":"6950","DOI":"10.1021\/es203181m","article-title":"Methylation of mercury by bacteria exposed to dissolved, nanoparticulate, and microparticulate mercuric sulfides","volume":"46","author":"Zhang","year":"2012","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib91","doi-asserted-by":"crossref","first-page":"9133","DOI":"10.1021\/es500336j","article-title":"Net methylation of mercury in estuarine sediment microcosms amended with dissolved, nanoparticulate, and microparticulate mercuric sulfides","volume":"48","author":"Zhang","year":"2014","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib92","doi-asserted-by":"crossref","first-page":"10804","DOI":"10.1021\/acs.est.5c12983","article-title":"Humic and fulvic acid fractions differentially regulate methane-dependent arsenate reduction in Paddy soils","volume":"60","author":"Zhang","year":"2026","journal-title":"Environ. Sci. Technol."},{"key":"10.1016\/j.envres.2026.125864_bib93","doi-asserted-by":"crossref","first-page":"2429","DOI":"10.5194\/bg-13-2429-2016","article-title":"Mercury methylation in paddy soil: source and distribution of mercury species at a Hg mining area, Guizhou Province, China","volume":"13","author":"Zhao","year":"2016","journal-title":"Biogeosciences"},{"key":"10.1016\/j.envres.2026.125864_bib94","doi-asserted-by":"crossref","DOI":"10.1016\/j.ecoenv.2020.110462","article-title":"Mercury methylation in rice paddy and accumulation in rice plant: a review","volume":"195","author":"Zhao","year":"2020","journal-title":"Ecotoxicol. Environ. Saf."},{"key":"10.1016\/j.envres.2026.125864_bib95","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.envpol.2016.05.001","article-title":"Mercury methylation in rice paddies and its possible controlling factors in the Hg mining area, Guizhou province, Southwest China","volume":"215","author":"Zhao","year":"2016","journal-title":"Environ. Pollut."}],"container-title":["Environmental Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S001393512602195X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S001393512602195X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T20:29:58Z","timestamp":1792614598000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S001393512602195X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,11]]},"references-count":95,"alternative-id":["S001393512602195X"],"URL":"https:\/\/doi.org\/10.1016\/j.envres.2026.125864","relation":{},"ISSN":["0013-9351"],"issn-type":[{"value":"0013-9351","type":"print"}],"subject":[],"published":{"date-parts":[[2026,11]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The divergent roles of humic- and fulvic-acid DOM in regulating Hg methylation\/demethylation in paddy soils","name":"articletitle","label":"Article Title"},{"value":"Environmental Research","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.envres.2026.125864","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}],"article-number":"125864"}}