WaDE: Watershed Dynamics and Evolution

Science Focus Area

History

The Watershed Dynamics and Evolution (WaDE) Science Focus Area (SFA) is informed by knowledge gained from the existing Critical Interfaces (CI) SFA at Oak Ridge National Laboratory, which has revolutionized understanding of mercury (Hg) transformation in low-order streams by integrating cross-disciplinary understanding of molecular- to watershed-scale processes. In particular, research from the CI SFA has identified that metabolically active transient storage zones (MATSZs) within streambeds serve as hot spots for biogeochemical transformations that can exert a controlling influence on downstream water quality.

CI SFA accomplishments are providing the process knowledge needed to improve predictions of Hg transformations at the scale of individual stream reaches and small watersheds. Our future efforts will apply this molecular- to watershed-scale framework towards improved understanding of watershed function as it relates to stream metabolism and related biogeochemical processes.

This page and its contents document research conducted for the CI SFA and serve as an archive. This content will not be updated.

Study Area. East Fork Poplar Creek, which is part of the 40,910 mi² Tennessee River Basin, is the representative test bed system being studied. This watershed and its associated streams represent the most intensively used freshwater water resource region in the contiguous United States, with estimated withdrawals of more than 280,000 gallons/day/mi².

Study Area. Shown here is the river basin as 32 segmented, 8-digit hydrologic unit codes (HUC-8). The East Fork Poplar Creek watershed is nested in the Lower Clinch HUC-8.

Research Elements. Transient storage zones (TSZs) are broadly defined as surface and subsurface locations (both metabolically active and inactive). Shown in the composite of research elements are metabolically active TSZs— “hot spots” for biogeochemical transformations, such as of mercury and nutrients, that can exert a controlling influence on downstream water quality.

Year	DOI	Scientists	Title	Discharge/Sonde	Kilometer	Water Year
2019	10.12769/1489524	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2012	Discharge	5.4	2012
2019	10.12769/1490223	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2013	Discharge	5.4	2013
2019	10.12769/1489825	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2014	Discharge	5.4	2014
2019	10.12769/1489828	Riscassi, Ami L., Kenneth A. Lowe, and Scott C. Brooks	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2015	Discharge	5.4	2015
2019	10.12769/1489830	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2016	Discharge	5.4	2016
2019	10.12769/1489831	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2017	Discharge	5.4	2017
2019	10.12769/1489832	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2018	Discharge	5.4	2018
2019	10.12769/1569761	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2019	Discharge	5.4	2019
2019	10.12769/1490688	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2015	Discharge	16.2	2015
2019	10.12769/1490689	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2016	Discharge	16.2	2016
2019	10.12769/1490690	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2017	Discharge	16.2	2017
2019	10.12769/1490691	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2018	Discharge	16.2	2018
2019	10.12769/1569818	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2019	Discharge	16.2	2019
2021	10.12769/1779632	Brooks, Scott C. and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 5.4 Water Year 2020	Discharge	5.4	2020
2021	10.12769/1779680	Brooks, Scott C. and Kenneth A. Lowe	East Fork Poplar Creek Discharge at Kilometer 16.2 Water Year 2020	Discharge	16.2	2020
2019	10.12769/1490225	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2012	Sonde	5.4	2012
2019	10.12769/1490227	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2013	Sonde	5.4	2013
2019	10.12769/1490228	Riscassi, Ami L., and Scott C. Brooks	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2014	Sonde	5.4	2014
2019	10.12769/1490231	Riscassi, Ami L., Kenneth A. Lowe, and Scott C. Brooks	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2015	Sonde	5.4	2015
2019	10.12769/1490234	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2016	Sonde	5.4	2016
2019	10.12769/1490236	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2017	Sonde	5.4	2017
2019	10.12769/1490237	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2018	Sonde	5.4	2018
2019	10.12769/1569762	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2019	Sonde	5.4	2019
2019	10.12769/1490692	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2015	Sonde	16.2	2015
2019	10.12769/1490694	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2016	Sonde	16.2	2016
2019	10.12769/1490695	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2017	Sonde	16.2	2017
2019	10.12769/1490696	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2018	Sonde	16.2	2018
2019	10.12769/1569821	Brooks, Scott C., and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2019	Sonde	16.2	2019
2021	10.12769/1779674	Brooks, Scott C and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 5.4 Water Year 2020	Sonde	5.4	2020
2021	10.12769/1779683	Brooks, Scott C and Kenneth A. Lowe	East Fork Poplar Creek Sonde Data at Kilometer 16.2 Water Year 2020	Sonde	16.2	2020

Explore the Hg-cycling Microorganisms in Aquatic and Terrestrial Ecosystems Database here:

Gionfriddo, C., et al. “Hg-MATE-Db.v1.01142021.” (2021). The Smithsonian Institution. Dataset. [DOI: 10.25573/serc.13105370.v1]

WaDE and CI Data

Hg-MATE Database

Explore our Google Scholar page for all publications.

Year	DOI	Authors	Title	Journal	Volume/Pages
2023	10.1021/acs.est.2c09457	Zhang, L., Y. Yin, Y. Sun, X. Liang, D. E. Graham, E. M. Pierce, F. E. Löffler and B. Gu	Inhibition of Methylmercury and Methane Formation by Nitrous Oxide in Arctic Tundra Soil Microcosms	Environmental Science & Technology	57(14) 5655–65
2023	10.1016/j.envpol.2023.121790	Zhang, L., C. S. Kang-Yun, X. Lu, J. Chang, X. Liang, E. M. Pierce, J. D. Semrau and B. Gu	Adsorption and intracellular uptake of mercuric mercury and methylmercury by methanotrophs and methylating bacteria	Environmental Pollution	331 121790
2023	10.1016/j.gca.2022.12.008	Liang, X., A. Johs, M. J. Abernathy, J. Zhao, H. Du, P. Ku, L. Zhang, N. Zhu, X. Yin, S. Brooks, L. Zhao, R. Sarangi, E. M. Pierce and B. Gu	High methylation potential of mercury complexed with mixed thiolate ligands by Geobacter sulfurreducens PCA	Geochimica et Cosmochimica Acta	342 74–83
2023	10.1039/D1EM00549A	Koenigsmark, F., M. Chiu, N. Rivera, A. Johs, J. Eskelsen, D. Leonard, B. K. Robertson, A. Szynkiewicz, C. Derolph, L. Zhao, B. Gu, H. Hsu-Kim and E. M. Pierce	Crystal lattice defects in nanocrystalline metacinnabar in contaminated streambank soils suggest a role for biogenic sulfides in the formation of mercury sulfide phases	Environmental Science: Processes & Impacts	25(3) 445–60
2023	10.1128/aem.01768-22	Gionfriddo, C. M., A. B. Soren, A. M. Wymore, D. S. Hartnett, M. Podar, J. M. Parks, D. A. Elias and C. C. Gilmour	Transcriptional Control of hgcAB by an ArsR-Like Regulator in Pseudodesulfovibrio mercurii ND132	Applied and Environmental Microbiology	89(4) e01768-22
2023	10.1016/j.jhazmat.2022.130589	Du, H., X. Gu, A. Johs, X. Yin, T. Spano, D. Wang, E. M. Pierce and B. Gu	Sonochemical oxidation and stabilization of liquid elemental mercury in water and soil	Journal of Hazardous Materials	445 130589
2023	10.1111/1755-0998.13687	Capo, E., B. D. Peterson, M. Kim, D. S. Jones, S. G. Acinas, et al.	A consensus protocol for the recovery of mercury methylation genes from metagenomes	Molecular Ecology Resources	23(1) 190–204
2022	10.1016/j.jhazmat.2021.127388	Zhang, Y., L. Zhang, X. Liang, Q. Wang, X. Yin, E. M. Pierce and B. Gu	Competitive exchange between divalent metal ions [Cu(II), Zn(II), Ca(II)] and Hg(II) bound to thiols and natural organic matter	Journal of Hazardous Materials	424 127388
2022	10.1016/j.envpol.2022.118878	Zhang, L., M. Philben, N. Taş, A. Johs, Z. Yang, S. D. Wullschleger, D. E. Graham, E. M. Pierce and B. Gu	Unravelling biogeochemical drivers of methylmercury production in an Arctic fen soil and a bog soil	Environmental Pollution	299 118878
2022	10.1016/j.jhazmat.2022.128835	Yin, X., L. Wang, X. Liang, L. Zhang, J. Zhao and B. Gu	Contrary effects of phytoplankton Chlorella vulgaris and its exudates on mercury methylation by iron- and sulfate-reducing bacteria	Journal of Hazardous Materials	433 128835
2022	10.1016/j.gca.2021.10.017	Yan, J., N. Sharma, E. D. Flynn, D. E. Giammar, G. E. Schwartz, S. C. Brooks, P. Weisenhorn, K. M. Kemner, E. J. O'Loughlin, D. I. Kaplan and J. G. Catalano	Consistent controls on trace metal micronutrient speciation in wetland soils and stream sediments	Geochimica et Cosmochimica Acta	317 234–54
2022	10.1002/hyp.14540	Ward, A. S., A. Packman, S. Bernal, N. Brekenfeld, J. Drummond, et al.	Advancing river corridor science beyond disciplinary boundaries with an inductive approach to catalyse hypothesis generation	Hydrological Processes	36(4) e14540
2022	10.1029/2022WR032018	Tsai, C. H., D. F. Rucker, S. C. Brooks, T. Ginn and K. C. Carroll	Transient Storage Model Parameter Optimization Using the Simulated Annealing Method	Water Resources Research	58(7) e2022WR032018
2022	10.1039/D1EM00287B	Schwartz, G. E., K. A. Muller, S. S. Rathore, R. L. Wilpiszeski, A. A. Carrell, M. A. Cregger, D. A. Elias, M. Podar, S. L. Painter and S. C. Brooks	Incorporating concentration-dependent sediment microbial activity into methylmercury production kinetics modeling	Environmental Science: Processes & Impacts	24(9) 1392–405
2022	10.1016/j.envsoft.2022.105453	Rathore, S. S., G. E. Schwartz, S. C. Brooks and S. L. Painter	Joint estimation of biogeochemical model parameters from multiple experiments: A bayesian approach applied to mercury methylation	Environmental Modelling & Software	155 105453
2022	10.1021/acs.est.1c04662	Pierce, C. E., O. S. Furman, S. L. Nicholas, J. C. Wasik, C. M. Gionfriddo, A. M. Wymore, S. D. Sebestyen, R. K. Kolka, C. P. J. Mitchell, N. A. Griffiths, D. A. Elias, E. A. Nater and B. M. Toner	Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils	Environmental Science & Technology	56(2) 1433–44
2022	10.1021/acs.est.1c06796	Neal-Walthall, N., U. Ndu, N. A. Rivera, Jr., D. A. Elias and H. Hsu-Kim	Utility of Diffusive Gradient in Thin-Film Passive Samplers for Predicting Mercury Methylation Potential and Bioaccumulation in Freshwater Wetlands	Environmental Science & Technology	56(3) 1743–52
2022	10.1021/acs.est.1c06558	Liang, X., N. Zhu, A. Johs, H. Chen, D. A. Pelletier, L. Zhang, X. Yin, Y. Gao, J. Zhao and B. Gu	Mercury Reduction, Uptake, and Species Transformation by Freshwater Alga Chlorella vulgaris under Sunlit and Dark Conditions	Environmental Science & Technology	56(8) 4961–69
2022	10.1029/2021WR029771	Krause, S., B. W. Abbott, V. Baranov, S. Bernal, P. Blaen, et al.	Organizational Principles of Hyporheic Exchange Flow and Biogeochemical Cycling in River Networks Across Scales	Water Resources Research	58(3) e2021WR029771
2022	10.1038/s41396-021-01062-1	Kang-Yun, C. S., X. Liang, P. Dershwitz, W. Gu, A. Schepers, et al.	Evidence for methanobactin “Theft” and novel chalkophore production in methanotrophs: impact on methanotrophic-mediated methylmercury degradation	The ISME Journal	16(1) 211–20
2022	10.1021/acs.est.2c00169	Hao, Y.-Y., Y.-J. Zhu, R.-Q. Yan, B. Gu, X.-Q. Zhou, R.-R. Wei, C. Wang, J. Feng, Q. Huang and Y.-R. Liu	Important Roles of Thiols in Methylmercury Uptake and Translocation by Rice Plants	Environmental Science & Technology	56(10) 6765–73
2022	10.1016/j.jes.2022.07.013	Gao, Z., W. Zheng, Y. Li, Y. Liu, M. Wu, et al.	Mercury transformation processes in nature: Critical knowledge gaps and perspectives for moving forward	Journal of Environmental Sciences	119 152–65
2022	10.1088/1748-9326/ac59a9	Dwivedi, D., C. I. Steefel, B. Arora, J. Banfield, J. Bargar, et al.	From legacy contamination to watershed systems science: a review of scientific insights and technologies developed through DOE-supported research in water and energy security	Environmental Research Letters	17(4) 43004
2022	10.1039/D2EM00142J	Brooks, S. C., A. L. Riscassi, C. L. Miller, K. A. Lowe, X. Yin and T. L. Mehlhorn	Diel mercury concentration variations in a mercury-impacted stream	Environmental Science: Processes & Impacts	24(8) 1195–211
2022	10.1021/acsenvironau.1c00022	Barkay, T. and B. Gu	Demethylation─The Other Side of the Mercury Methylation Coin: A Critical Review	ACS Environmental Au	2(2) 77–97
2021	10.1016/j.gca.2020.10.013	Zhang, L., X. Liang, Q. Wang, Y. Zhang, X. Yin, X. Lu, E. M. Pierce and B. Gu	Isotope exchange between mercuric [Hg(II)] chloride and Hg(II) bound to minerals and thiolate ligands: Implications for enriched isotope tracer studies	Geochimica et Cosmochimica Acta	292 468–81
2021	10.1111/fwb.13777	Veach, A. M., M. J. Troia and M. A. Cregger	Assessing biogeographic survey gaps in bacterial diversity knowledge: A global synthesis of freshwaters	Freshwater Biology	66(8) 1595–605
2021	10.1016/j.jappgeo.2021.104306	Rucker, D. F., C.-H. Tsai, K. C. Carroll, S. Brooks, E. M. Pierce, A. Ulery and C. Derolph	Bedrock architecture, soil texture, and hyporheic zone characterization combining electrical resistivity and induced polarization imaging	Journal of Applied Geophysics	188 104306
2021	10.1029/2020WR028908	Rathore, S. S., A. Jan, E. T. Coon and S. L. Painter	On the Reliability of Parameter Inferences in a Multiscale Model for Transport in Stream Corridors	Water Resources Research	57(5) e2020WR028908
2021	10.1128/mra.00002-21	Podar, P. T., K. Peyton, A. Soren, R. L. Wilpiszeski, C. C. Gilmour, D. A. Elias and M. Podar	Complete Genome Sequence of Desulfobulbus oligotrophicus Prop6, an Anaerobic Deltabacterota Strain That Lacks Mercury Methylation Capability	Microbiology Resource Announcements	10(5)
2021	10.3389/frwa.2020.595538	Painter, S. L.	On the Representation of Hyporheic Exchange in Models for Reactive Transport in Stream and River Corridors	Frontiers in Water	2
2021	10.1089/ees.2020.0068	Murphy, S. A., G. E. Schwartz and S. C. Brooks	Demethylation or Sorption? The Fate of Methylmercury in the Presence of Manganese Dioxide	Environmental Engineering Science	38(4) 224–30
2021	10.1016/j.jhydrol.2021.127015	Mohamed, R. A. M., C. Gabrielli, J. S. Selker, F. Selker, S. C. Brooks, T. Ahmed and K. C. Carroll	Comparison of fiber-optic distributed temperature sensing and high-sensitivity sensor spatial surveying of stream temperature	Journal of Hydrology	603 127015
2021	10.1016/j.jhydrol.2021.126474	Mohamed, R. A. M., S. C. Brooks, C.-H. Tsai, T. Ahmed, D. F. Rucker, A. L. Ulery, E. M. Pierce and K. C. Carroll	Geostatistical interpolation of streambed hydrologic attributes with addition of left censored data and anisotropy	Journal of Hydrology	599 126474
2021	10.1021/acs.jpca.1c04014	Lian, P., Z. Mou, C. J. Cooper, R. C. Johnston, S. C. Brooks, B. Gu, N. Govind, S. Jonsson and J. M. Parks	Mechanistic Investigation of Dimethylmercury Formation Mediated by a Sulfide Mineral Surface	The Journal of Physical Chemistry A	125(24) 5397–405
2021	10.1016/j.chemosphere.2021.130629	Li, R., L. Qi, V. Ibeanusi, V. Badisa, S. Brooks and G. Chen	Reduction and bacterial adsorption of dissolved mercuric ion by indigenous bacteria at the Oak Ridge Reservation site	Chemosphere	280 130629
2021	10.3390/ijerph182413350	Koenigsmark, F., C. Weinhouse, A. J. Berky, A. M. Morales, E. J. Ortiz, E. M. Pierce, W. K. Pan and H. Hsu-Kim	Efficacy of Hair Total Mercury Content as a Biomarker of Methylmercury Exposure to Communities in the Area of Artisanal and Small-Scale Gold Mining in Madre de Dios, Peru	International Journal of Environmental Research and Public Health	18(24) 13350
2021		Koenigsmark, F.	From Source to Surveillance: An Assessment of Liquid Elemental Mercury Mobilization in Soil, Downstream Reactivity, and Biomarkers of Exposure	Department of Civil and Environmental Engineering, Duke University
2021	10.1128/mra.00153-21	Kim, M., R. L. Wilpiszeski, M. Wells, A. M. Wymore, C. M. Gionfriddo, S. C. Brooks, M. Podar and D. A. Elias	Metagenome-Assembled Genome Sequences of Novel Prokaryotic Species from the Mercury-Contaminated East Fork Poplar Creek, Oak Ridge, Tennessee, USA	Microbiology Resource Announcements	10(17)
2021	10.1016/j.envsoft.2021.105166	Jan, A., E. T. Coon and S. L. Painter	Toward more mechanistic representations of biogeochemical processes in river networks: Implementation and demonstration of a multiscale model	Environmental Modelling & Software	145 105166
2021	10.3390/microorganisms9081780	Isokpehi, R. D., D. S. McInnis, A. M. Destefano, G. S. Johnson, A. D. Walker, Y. A. Hall, B. W. Mapp, M. O. Johnson and S. S. Simmons	Bioinformatics Investigations of Universal Stress Proteins from Mercury-Methylating Desulfovibrionaceae	Microorganisms	9(8) 1780
2021	10.1099/ijsem.0.004697	Gilmour, C. C., A. B. Soren, C. M. Gionfriddo, M. Podar, J. D. Wall, S. D. Brown, J. K. Michener, M. S. G. Urriza and D. A. Elias	Pseudodesulfovibrio mercurii sp. nov., a mercury-methylating bacterium isolated from sediment	International Journal of Systematic and Evolutionary Microbiology	71(3)
2021	10.1007/s11270-021-05093-4	Egbo, T. E., A. Johs, R. Sahu, Y. Abdelmageed, J. Ogbudu and B. K. Robertson	Interaction of Soil Microbes with Organoclays and their Impact on the Immobilization of Hg under Aerobic Conditions	Water, Air, & Soil Pollution	232(4) 157
2021	10.1016/j.jinorgbio.2021.111496	Eckert, P., A. Johs, J. D. Semrau, A. A. DiSpirito, J. Richardson, R. Sarangi, E. Herndon, B. Gu and E. M. Pierce	Spectroscopic and computational investigations of organometallic complexation of group 12 transition metals by methanobactins from Methylocystis sp. SB2	Journal of Inorganic Biochemistry	223 111496
2021	10.1039/D1EM00019E	Crowther, E. R., J. D. Demers, J. D. Blum, S. C. Brooks and M. W. Johnson	Use of sequential extraction and mercury stable isotope analysis to assess remobilization of sediment-bound legacy mercury	Environmental Science: Processes & Impacts	23(5) 756–75
2021	10.3389/fmicb.2021.647861	Carrell, A. A., G. E. Schwartz, M. A. Cregger, C. M. Gionfriddo, D. A. Elias, R. L. Wilpiszeski, D. M. Klingeman, A. M. Wymore, K. A. Muller and S. C. Brooks	Nutrient Exposure Alters Microbial Composition, Structure, and Mercury Methylating Activity in Periphyton in a Contaminated Watershed	Frontiers in Microbiology	12
2021	10.1002/hyp.14103	Brooks, S. C., A. L. Riscassi and K. A. Lowe	Stream discharge and water quality data for East Fork Poplar Creek beginning 2012	Hydrological Processes	35(3) e14103
2021	10.1002/hyp.14344	Brooks, S. C., C. L. Miller, A. L. Riscassi, K. A. Lowe, J. O. Dickson and G. E. Schwartz	Increasing temperature and flow management alter mercury dynamics in East Fork Poplar Creek	Hydrological Processes	35(8) e14344
2021	10.1016/j.cageo.2021.104933	Brantley, S. L., T. Wen, D. A. Agarwal, J. G. Catalano, P. A. Schroeder, et al.	The future low-temperature geochemical data-scape as envisioned by the U.S. geochemical community	Computers & Geosciences	157 104933
2021	10.1007/s11270-020-04978-0	Abdelmageed, Y., C. Miller, C. Sanders, T. Egbo, A. Johs and B. Robertson	Assessing Microbial Communities Related to Mercury Transformations in Contaminated Streambank Soils	Water, Air, & Soil Pollution	232(1) 31
2020	10.1021/acs.est.0c00181	Zhou, X.-Q., Y.-Y. Hao, B. Gu, J. Feng, Y.-R. Liu and Q. Huang	Microbial Communities Associated with Methylmercury Degradation in Paddy Soils	Environmental Science & Technology	54(13) 7952–60
2020	10.1016/j.scitotenv.2020.138879	Zaporski, J., M. Jamison, L. Zhang, B. Gu and Z. Yang	Mercury methylation potential in a sand dune on Lake Michigan's eastern shoreline	Science of The Total Environment	729 138879
2020	10.3389/frwa.2020.00007	Ward, A. S., S. M. Wondzell, N. M. Schmadel and S. P. Herzog	Climate Change Causes River Network Contraction and Disconnection in the H.J. Andrews Experimental Forest, Oregon, USA	Frontiers in Water	2
2020	10.1021/acs.est.0c06229	Wang, Q., L. Zhang, X. Liang, X. Yin, Y. Zhang, W. Zheng, E. M. Pierce and B. Gu	Rates and Dynamics of Mercury Isotope Exchange between Dissolved Elemental Hg(0) and Hg(II) Bound to Organic and Inorganic Ligands	Environmental Science & Technology	54(23) 15534–45
2020	10.1002/jcc.26081	Lian, P., L. Guo, D. Devarajan, J. M. Parks, S. L. Painter, S. C. Brooks and J. C. Smith	The AQUA-MER databases and aqueous speciation server: A web resource for multiscale modeling of mercury speciation	Journal of Computational Chemistry	41(2) 147–55
2020	10.1002/jcc.26098	Hwang, H., A. Hazel, P. Lian, J. C. Smith, J. C. Gumbart and J. M. Parks	A Minimal Membrane Metal Transport System: Dynamics and Energetics of mer Proteins	Journal of Computational Chemistry	41(6) 528–37
2020	10.3389/fmicb.2020.541554	Gionfriddo, C. M., A. M. Wymore, D. S. Jones, R. L. Wilpiszeski, M. M. Lynes, G. A. Christensen, A. Soren, C. C. Gilmour, M. Podar and D. A. Elias	An Improved hgcAB Primer Set and Direct High-Throughput Sequencing Expand Hg-Methylator Diversity in Nature	Frontiers in Microbiology	11
2020	10.1016/j.scitotenv.2019.136031	Eckley, C. S., C. C. Gilmour, S. Janssen, T. P. Luxton, P. M. Randall, L. Whalin and C. Austin	The assessment and remediation of mercury contaminated sites: A review of current approaches	Science of The Total Environment	707 136031
2020	10.1021/acs.est.0c01176	Devarajan, D., L. Liang, B. Gu, S. C. Brooks, J. M. Parks and J. C. Smith	Molecular Dynamics Simulation of the Structures, Dynamics, and Aggregation of Dissolved Organic Matter	Environmental Science & Technology	54(21) 13527–37
2020	10.1038/s42003-020-1047-5	Cooper, C. J., K. Zheng, K. W. Rush, A. Johs, B. C. Sanders, G. A. Pavlopoulos, N. C. Kyrpides, M. Podar, S. Ovchinnikov, S. W. Ragsdale and J. M. Parks	Structure determination of the HgcAB complex using metagenome sequence data: insights into microbial mercury methylation	Communications Biology	3(1) 320
2019	10.1021/acs.est.8b05047	Zheng, W., J. D. Demers, X. Lu, B. A. Bergquist, A. D. Anbar, J. D. Blum and B. Gu	Mercury Stable Isotope Fractionation during Abiotic Dark Oxidation in the Presence of Thiols and Natural Organic Matter	Environmental Science & Technology	53(4) 1853–62
2019	10.1021/acsearthspacechem.9b00039	Zhao, L., Y. Li, L. Zhang, J. Zheng, E. M. Pierce and B. Gu	Mercury Adsorption on Minerals and Its Effect on Microbial Methylation	ACS Earth and Space Chemistry	3(7) 1338–45
2019	10.1021/acs.est.8b06020	Zhang, L., S. Wu, L. Zhao, X. Lu, E. M. Pierce and B. Gu	Mercury Sorption and Desorption on Organo-Mineral Particulates as a Source for Microbial Methylation	Environmental Science & Technology	53(5) 2426–33
2019	10.1021/acs.est.8b07145	Tang, W., H. Hintelmann, B. Gu, X. Feng, Y. Liu, Y. Gao, J. Zhao, H. Zhu, P. Lei and H. Zhong	Increased Methylmercury Accumulation in Rice after Straw Amendment	Environmental Science & Technology	53(11) 6144–53
2019	10.1002/etc.4551	Schwartz, G. E., T. A. Olsen, K. A. Muller and S. C. Brooks	Ecosystem Controls on Methylmercury Production by Periphyton Biofilms in a Contaminated Stream: Implications for Predictive Modeling	Environmental Toxicology and Chemistry	38(11) 2426–35
2019	10.1089/ees.2018.0375	Muller, K. A. and S. C. Brooks	Effectiveness of Sorbents to Reduce Mercury Methylation	Environmental Engineering Science	36(3) 361–71
2019	10.1016/j.jenvman.2019.05.100	Muller, K. A., C. C. Brandt, T. J. Mathews and S. C. Brooks	Methylmercury sorption onto engineered materials	Journal of Environmental Management	245 481–88
2019	10.1111/fwb.13265	McManamay, R. A., F. Linam, T. J. Mathews, S. C. Brooks and M. J. Peterson	Scaling mercury biodynamics from individuals to populations: Implications of an herbivorous fish on mercury cycles in streams	Freshwater Biology	64(5) 815–31
2019	10.1021/acs.estlett.9b00067	Lu, X., J. Zhao, X. Liang, L. Zhang, Y. Liu, X. Yin, X. Li and B. Gu	The Application and Potential Artifacts of Zeeman Cold Vapor Atomic Absorption Spectrometry in Mercury Stable Isotope Analysis	Environmental Science & Technology Letters	6(3) 165–70
2019	10.1021/acs.est.9b02586	Liang, X., X. Lu, J. Zhao, L. Liang, E. Y. Zeng and B. Gu	Stepwise Reduction Approach Reveals Mercury Competitive Binding and Exchange Reactions within Natural Organic Matter and Mixed Organic Ligands	Environmental Science & Technology	53(18) 10685–94
2019	10.1016/j.scitotenv.2019.07.001	Johs, A., V. A. Eller, T. L. Mehlhorn, S. C. Brooks, D. P. Harper, M. A. Mayes, E. M. Pierce and M. J. Peterson	Dissolved organic matter reduces the effectiveness of sorbents for mercury removal	Science of The Total Environment	690 410–16
2019	10.1016/j.gca.2019.07.053	Guo, L., S. L. Painter, S. C. Brooks, J. M. Parks and J. C. Smith	A probabilistic perspective on thermodynamic parameter uncertainties: Understanding aqueous speciation of mercury	Geochimica et Cosmochimica Acta	263 108–21
2019	10.1002/9781119300762.wsts0001	Gu, B., X. Lu, A. Johs and E. M. Pierce	Mercury in Water	Encyclopedia of Water: Science, Technology, and Society	44944
2019	10.1007/s11368-018-2183-0	Dickson, J. O., M. A. Mayes, S. C. Brooks, T. L. Mehlhorn, K. A. Lowe, J. K. Earles, L. Goñez-Rodriguez, D. B. Watson and M. J. Peterson	Source relationships between streambank soils and streambed sediments in a mercury-contaminated stream	Journal of Soils and Sediments	19(4) 2007–19
2019	10.1128/AEM.00438-19	Date, S. S., J. M. Parks, K. W. Rush, J. D. Wall, S. W. Ragsdale and A. Johs	Kinetics of Enzymatic Mercury Methylation at Nanomolar Concentrations Catalyzed by HgcAB	Applied and Environmental Microbiology	85(13) e00438-19
2019		Crow, M. C., R. Devarakonda, T. Killeffer and L. Hook	Multitenant Web Applications for Managing Data Across Multiple Projects at ORNL, Example: NGEE-Arctic, ARM, and Mercury Critical Interfaces Science Focus Area	AGU Fall Meeting
2019	10.1021/acs.est.8b06389	Christensen, G. A., C. M. Gionfriddo, A. J. King, J. G. Moberly, C. L. Miller, et al.	Determining the Reliability of Measuring Mercury Cycling Gene Abundance with Correlations with Mercury and Methylmercury Concentrations	Environmental Science & Technology	53(15) 8649–63
2019	10.1021/acs.accounts.8b00454	Asaduzzaman, A., D. Riccardi, A. T. Afaneh, C. J. Cooper, J. C. Smith, F. Wang, J. M. Parks and G. Schreckenbach	Environmental Mercury Chemistry – In Silico	Accounts of Chemical Research	52(2) 379–88
2019	10.1021/acs.est.9b00047	An, J., L. Zhang, X. Lu, D. A. Pelletier, E. M. Pierce, A. Johs, J. M. Parks and B. Gu	Mercury Uptake by Desulfovibrio desulfuricans ND132: Passive or Active?	Environmental Science & Technology	53(11) 6264–72
2018	10.1039/C7EM00558J	Vishnivetskaya, T. A., H. Hu, J. D. Van Nostrand, Ann M. Wymore, X. Xu, G. Qiu, X. Feng, J. Zhou, S. D. Brown, C. C. Brandt, M. Podar, B. Gu and D. A. Elias	Microbial community structure with trends in methylation gene diversity and abundance in mercury-contaminated rice paddy soils in Guizhou, China	Environmental Science: Processes & Impacts	20(4) 673–85
2018	10.1002/pmic.201700479	Qian, C., H. Chen, A. Johs, X. Lu, J. An, E. M. Pierce, J. M. Parks, D. A. Elias, R. L. Hettich and B. Gu	Quantitative Proteomic Analysis of Biological Processes and Responses of the Bacterium Desulfovibrio desulfuricans ND132 upon Deletion of Its Mercury Methylation Genes	Proteomics	18(17) 1700479
2018	10.1021/acs.jctc.7b01236	Pavlova, A., J. M. Parks and J. C. Gumbart	Development of CHARMM-Compatible Force-Field Parameters for Cobalamin and Related Cofactors from Quantum Mechanical Calculations	Journal of Chemical Theory and Computation	14(2) 784–98
2018	10.1128/genomea.00518-18	Pathak, A., R. Jaswal, P. Stothard, S. Brooks and A. Chauhan	Draft Genome Sequence of Pseudomonas sp. Strain B1, Isolated from a Contaminated Sediment	Genome Announcements	6(25)
2018	US10036072B2	Parks, J. M. and A. Johs	Mercury methylation genes in bacteria and archaea	United States Patent	UT Battelle LLC
2018	10.1029/2018WR022831	Painter, S. L.	Multiscale Framework for Modeling Multicomponent Reactive Transport in Stream Corridors	Water Resources Research	54(10) 7216–30
2018	10.1021/acs.est.7b05152	Olsen, T. A., K. A. Muller, S. L. Painter and S. C. Brooks	Kinetics of Methylmercury Production Revisited	Environmental Science & Technology	52(4) 2063–70
2018	10.1021/acs.est.8b00647	Ndu, U., G. A. Christensen, N. A. Rivera, C. M. Gionfriddo, M. A. Deshusses, D. A. Elias and H. Hsu-Kim	Quantification of Mercury Bioavailability for Methylation Using Diffusive Gradient in Thin-Film Samplers	Environmental Science & Technology	52(15) 8521–29
2018	10.1021/acs.estlett.8b00232	Lu, X., A. Johs, L. Zhao, L. Wang, E. M. Pierce and B. Gu	Nanomolar Copper Enhances Mercury Methylation by Desulfovibrio desulfuricans ND132	Environmental Science & Technology Letters	5(6) 372–76
2018	10.1021/acs.est.8b03052	Liu, Y.-R., A. Johs, L. Bi, X. Lu, H.-W. Hu, D. Sun, J.-Z. He and B. Gu	Unraveling Microbial Communities Associated with Methylmercury Production in Paddy Soils	Environmental Science & Technology	52(22) 13110–18
2018	10.1021/acs.jpca.8b01751	Lian, P., R. C. Johnston, J. M. Parks and J. C. Smith	Quantum Chemical Calculation of pK_as of Environmentally Relevant Functional Groups: Carboxylic Acids, Amines, and Thiols in Aqueous Solution	The Journal of Physical Chemistry A	122(17) 4366–74
2018	10.1039/C7EM00533D	Kanzler, C. R., P. Lian, E. L. Trainer, X. Yang, N. Govind, Jerry M. Parks and A. M. Graham	Emerging investigator series: methylmercury speciation and dimethylmercury production in sulfidic solutions	Environmental Science: Processes & Impacts	20(4) 584–94
2018	10.1128/mbio.02403-17	Gilmour, C. C., A. L. Bullock, A. McBurney, M. Podar and D. A. Elias	Robust Mercury Methylation across Diverse Methanogenic Archaea	mBio	9(2)
2018	10.1021/acs.est.7b04343	Eskelsen, J. R., J. Xu, M. Chiu, J.-W. Moon, B. Wilkins, D. E. Graham, B. Gu and E. M. Pierce	Influence of Structural Defects on Biomineralized ZnS Nanoparticle Dissolution: An in-Situ Electron Microscopy Study	Environmental Science & Technology	52(3) 1139–49
2018	10.1021/acsearthspacechem.8b00102	Devarajan, D., P. Lian, S. C. Brooks, J. M. Parks and J. C. Smith	Quantum Chemical Approach for Calculating Stability Constants of Mercury Complexes	ACS Earth and Space Chemistry	2(11) 1168–78
2018	10.1039/C7EM00538E	Demers, J. D., J. D. Blum, S. C. Brooks, Patrick M. Donovan, A. L. Riscassi, C. L. Miller, W. Zheng and B. Gu	Hg isotopes reveal in-stream processing and legacy inputs in East Fork Poplar Creek, Oak Ridge, Tennessee, USA	Environmental Science: Processes & Impacts	20(4) 686–707
2018	10.1128/AEM.01049-17	Christensen, G. A., A. C. Somenahally, J. G. Moberly, C. M. Miller, A. J. King, C. C. Gilmour, S. D. Brown, M. Podar, C. C. Brandt, S. C. Brooks, A. V. Palumbo, J. D. Wall and D. A. Elias	Carbon Amendments Alter Microbial Community Structure and Net Mercury Methylation Potential in Sediments	Applied and Environmental Microbiology	84(3) e01049-17
2017	10.1021/acs.est.7b02204	Zhou, J., M. D. Smith, C. J. Cooper, X. Cheng, J. C. Smith and J. M. Parks	Modeling of the Passive Permeation of Mercury and Methylmercury Complexes Through a Bacterial Cytoplasmic Membrane	Environmental Science & Technology	51(18) 10595–604
2017	10.1021/acs.est.7b02518	Zhao, L., H. Chen, X. Lu, H. Lin, G. A. Christensen, E. M. Pierce and B. Gu	Contrasting Effects of Dissolved Organic Matter on Mercury Methylation by Geobacter sulfurreducens PCA and Desulfovibrio desulfuricans ND132	Environmental Science & Technology	51(18) 10468–75
2017	10.1016/j.envpol.2016.10.099	Luo, H.-W., X. Yin, A. M. Jubb, H. Chen, X. Lu, W. Zhang, H. Lin, H.-Q. Yu, L. Liang, G.-P. Sheng and B. Gu	Photochemical reactions between mercury (Hg) and dissolved organic matter decrease Hg bioavailability and methylation	Environmental Pollution	220 1359–65
2017	10.1126/sciadv.1700041	Lu, X., W. Gu, L. Zhao, M. Farhan Ul Haque, A. A. DiSpirito, J. D. Semrau and B. Gu	Methylmercury uptake and degradation by methanotrophs	Science Advances	3(5) e1700041
2017	10.1021/acs.est.7b02781	Graham, A. M., K. T. Cameron-Burr, H. A. Hajic, C. Lee, D. Msekela and C. C. Gilmour	Sulfurization of Dissolved Organic Matter Increases Hg–Sulfide–Dissolved Organic Matter Bioavailability to a Hg-Methylating Bacterium	Environmental Science & Technology	51(16) 9080–88
2017	10.1021/acs.estlett.6b00460	Chen, H., R. C. Johnston, B. F. Mann, R. K. Chu, N. Tolic, J. M. Parks and B. Gu	Identification of Mercury and Dissolved Organic Matter Complexes Using Ultrahigh Resolution Mass Spectrometry	Environmental Science & Technology Letters	4(2) 59–65
2017	10.1002/lom3.10139	Brooks, S. C., C. C. Brandt and N. A. Griffiths	Estimating uncertainty in ambient and saturation nutrient uptake metrics from nutrient pulse releases in stream ecosystems	Limnology and Oceanography: Methods	15(1) 22–37
2016	10.1016/j.envpol.2016.04.069	Yang, Z., W. Fang, X. Lu, G.-P. Sheng, D. E. Graham, L. Liang, S. D. Wullschleger and B. Gu	Warming increases methylmercury production in an Arctic soil	Environmental Pollution	214 504–09
2016	10.1016/j.toxlet.2015.11.022	Rothenberg, S. E., S. Keiser, N. J. Ajami, M. C. Wong, J. Gesell, J. F. Petrosino and A. Johs	The role of gut microbiota in fetal methylmercury exposure: Insights from a pilot study	Toxicology Letters	242 60–67
2016	10.1002/etc.3310	Riscassi, A., C. Miller and S. Brooks	Seasonal and flow-driven dynamics of particulate and dissolved mercury and methylmercury in a stream impacted by an industrial mercury source	Environmental Toxicology and Chemistry	35(6) 1386–400
2016	10.1021/acs.jproteome.6b00263	Qian, C., A. Johs, H. Chen, B. F. Mann, X. Lu, P. E. Abraham, R. L. Hettich and B. Gu	Global Proteome Response to Deletion of Genes Related to Mercury Methylation and Dissimilatory Metal Reduction Reveals Changes in Respiratory Metabolism in Geobacter sulfurreducens PCA	Journal of Proteome Research	15(10) 3540–49
2016	10.1016/bs.mie.2016.05.041	Parks, J. M. and J. C. Smith	Modeling Mercury in Proteins	Methods in Enzymology	578 103–22
2016	10.1021/acs.est.6b01538	Olsen, T. A., C. C. Brandt and S. C. Brooks	Periphyton Biofilms Influence Net Methylmercury Production in an Industrially Contaminated System	Environmental Science & Technology	50(20) 10843–50
2016	10.1021/acs.est.6b03687	Lu, X., Y. Liu, A. Johs, L. Zhao, T. Wang, Z. Yang, H. Lin, D. A. Elias, E. M. Pierce, L. Liang, T. Barkay and B. Gu	Response to Comment on “Anaerobic Mercury Methylation and Demethylation by Geobacter Bemidjiensis Bem”	Environmental Science & Technology	50(17) 9800–01
2016	10.1021/acs.est.6b00401	Lu, X., Y. Liu, A. Johs, L. Zhao, T. Wang, Z. Yang, H. Lin, D. A. Elias, E. M. Pierce, L. Liang, T. Barkay and B. Gu	Anaerobic Mercury Methylation and Demethylation by Geobacter bemidjiensis Bem	Environmental Science & Technology	50(8) 4366–73
2016	10.1021/acs.est.6b04041	Liu, Y.-R., X. Lu, L. Zhao, J. An, J.-Z. He, E. M. Pierce, A. Johs and B. Gu	Effects of Cellular Sorption on Mercury Bioavailability and Methylmercury Production by Desulfovibrio desulfuricans ND132	Environmental Science & Technology	50(24) 13335–41
2016	10.1021/acs.jpcb.6b02701	Johnston, R. C., J. Zhou, J. C. Smith and J. M. Parks	Toward Quantitatively Accurate Calculation of the Redox-Associated Acid–Base and Ligand Binding Equilibria of Aquacobalamin	The Journal of Physical Chemistry B	120(30) 7307–18
2016	10.1016/j.jhazmat.2016.05.084	Jiang, P., Y. Li, G. Liu, G. Yang, L. Lagos, Y. Yin, B. Gu, G. Jiang and Y. Cai	Evaluating the role of re-adsorption of dissolved Hg²⁺ during cinnabar dissolution using isotope tracer technique	Journal of Hazardous Materials	317 466–75
2016	10.1371/journal.pone.0162401	Frontalini, F., D. Curzi, E. Cesarini, B. Canonico, F. M. Giordano, et al.	Mercury-Pollution Induction of Intracellular Lipid Accumulation and Lysosomal Compartment Amplification in the Benthic Foraminifer Ammonia parkinsoniana	PLoS ONE	11(9) e0162401
2016	10.1128/AEM.01271-16	Christensen, G. A., A. M. Wymore, A. J. King, M. Podar, R. A. Hurt, E. U. Santillan, A. Soren, C. C. Brandt, S. D. Brown, A. V. Palumbo, J. D. Wall, C. C. Gilmour and D. A. Elias	Development and Validation of Broad-Range Qualitative and Clade-Specific Quantitative Molecular Probes for Assessing Mercury Methylation in the Environment	Applied and Environmental Microbiology	82(19) 6068–78
2015	10.1007/s11783-014-0709-2	Watson, D., C. Miller, B. Lester, K. Lowe, G. Southworth, M. A. Bogle, L. Liang and E. Pierce	Mercury source zone identification using soil vapor sampling and analysis	Frontiers of Environmental Science & Engineering	9(4) 596–604
2015	10.3389/fmicb.2015.00596	Vázquez-Rodríguez, A., C. Hansel, T. Zhang, C. Lamborg, C. Santelli, S. Webb and S. Brooks	Microbial- and thiosulfate-mediated dissolution of mercury sulfide minerals and transformation to gaseous mercury	Frontiers in Microbiology	6
2015	10.32469/10355/57781	Smtih, S. D.	Protein components of the microbial mercury methylation pathway	Biochemistry, University of Missouri–Columbia
2015	10.1128/AEM.00217-15	Smith, S. D., R. Bridou, A. Johs, J. M. Parks, D. A. Elias, R. A. Hurt, S. D. Brown, M. Podar and J. D. Wall	Site-Directed Mutagenesis of HgcA and HgcB Reveals Amino Acid Residues Important for Mercury Methylation	Applied and Environmental Microbiology	81(9) 3205–17
2015	10.1021/ci500359e	Riccardi, D., J. M. Parks, A. Johs and J. C. Smith	HackaMol: An Object-Oriented Modern Perl Library for Molecular Hacking on Multiple Scales	Journal of Chemical Information and Modeling	55(4) 721–26
2015	10.1126/sciadv.1500675	Podar, M., C. C. Gilmour, C. C. Brandt, A. Soren, S. D. Brown, B. R. Crable, A. V. Palumbo, A. C. Somenahally and D. A. Elias	Global prevalence and distribution of genes and microorganisms involved in mercury methylation	Science Advances	1(9) e1500675
2015	10.1021/acs.estlett.5b00209	Lin, H., X. Lu, L. Liang and B. Gu	Thiol-Facilitated Cell Export and Desorption of Methylmercury by Anaerobic Bacteria	Environmental Science & Technology Letters	2(10) 292–96
2015	10.1021/acs.estlett.5b00068	Lin, H., X. Lu, L. Liang and B. Gu	Cysteine Inhibits Mercury Methylation by Geobacter sulfurreducens PCA Mutant ΔomcBESTZ	Environmental Science & Technology Letters	2(5) 144–48
2015	10.1007/s11356-015-4316-y	He, F., J. Gao, E. Pierce, P. J. Strong, H. Wang and L. Liang	In situ remediation technologies for mercury-contaminated soil	Environmental Science and Pollution Research	22(11) 8124–47
2014	10.1021/ic401992y	Zhou, J., D. Riccardi, A. Beste, J. C. Smith and J. M. Parks	Mercury Methylation by HgcA: Theory Supports Carbanion Transfer to Hg(II)	Inorganic Chemistry	53(2) 772–77
2014	10.1016/j.talanta.2014.04.028	Trieu, K., E. C. Heider, S. C. Brooks, F. Barbosa and A. D. Campiglia	Gold nanorods for surface Plasmon resonance detection of mercury (II) in flow injection analysis	Talanta	128 196–202
2014	10.4319/lom.2014.12.407	Riscassi, A., C. L. Miller and S. C. Brooks	Impact of collection container material and holding times on sample integrity for mercury and methylmercury in water	Limnology and Oceanography: Methods	12(6) 407–20
2014	10.1016/j.talanta.2013.11.004	Rao, B., C. Simpson, H. Lin, L. Liang and B. Gu	Determination of thiol functional groups on bacteria and natural organic matter in environmental systems	Talanta	119 240–47
2014	10.1021/ez500254z	Qian, Y., X. Yin, H. Lin, B. Rao, S. C. Brooks, L. Liang and B. Gu	Why Dissolved Organic Matter Enhances Photodegradation of Methylmercury	Environmental Science & Technology Letters	1(10) 426–31
2014	10.1021/es502537a	Lin, H., J. L. Morrell-Falvey, B. Rao, L. Liang and B. Gu	Coupled Mercury–Cell Sorption, Reduction, and Oxidation on Methylmercury Production by Geobacter sulfurreducens PCA	Environmental Science & Technology	48(20) 11969–76
2014	10.1021/ez500107r	Lin, H., R. A. Hurt, Jr., A. Johs, J. M. Parks, J. L. Morrell-Falvey, L. Liang, D. A. Elias and B. Gu	Unexpected Effects of Gene Deletion on Interactions of Mercury with the Methylation-Deficient Mutant ΔhgcAB	Environmental Science & Technology Letters	1(5) 271–76
2014	10.1021/bi500608u	Lian, P., H.-B. Guo, D. Riccardi, A. Dong, J. M. Parks, Q. Xu, E. F. Pai, S. M. Miller, D.-Q. Wei, J. C. Smith and H. Guo	X-ray Structure of a Hg²⁺ Complex of Mercuric Reductase (MerA) and Quantum Mechanical/Molecular Mechanical Study of Hg²⁺ Transfer between the C-Terminal and Buried Catalytic Site Cysteine Pairs	Biochemistry	53(46) 7211–22
2014	10.1371/journal.pone.0102826	Hurt, R. A., Jr., M. S. Robeson, II, M. Shakya, J. G. Moberly, T. A. Vishnivetskaya, B. Gu and D. A. Elias	Improved Yield of High Molecular Weight DNA Coincides with Increased Microbial Diversity Access from Iron Oxide Cemented Sub-Surface Clay Environments	PLoS ONE	9(7) e102826
2014	10.1016/j.bpj.2014.06.013	Hong, L., Melissa A. Sharp, S. Poblete, R. Biehl, M. Zamponi, et al.	Structure and Dynamics of a Compact State of a Multidomain Protein, the Mercuric Ion Reductase	Biophysical Journal	107(2) 393–400
2014	10.1021/ez500322f	He, F., W. Zhao, L. Liang and B. Gu	Photochemical Oxidation of Dissolved Elemental Mercury by Carbonate Radicals in Water	Environmental Science & Technology Letters	1(12) 499–503
2014	10.5194/bg-11-5259-2014	Gu, B., B. Mishra, C. Miller, W. Wang, B. Lai, S. C. Brooks, K. M. Kemner and L. Liang	X-ray fluorescence mapping of mercury on suspended mineral particles and diatoms in a contaminated freshwater system	Biogeosciences	11(18) 5259–67
2014	10.1016/j.febslet.2014.04.013	Edwards, M. J., N. A. Baiden, A. Johs, S. J. Tomanicek, L. Liang, L. Shi, J. K. Fredrickson, J. M. Zachara, A. J. Gates, J. N. Butt, D. J. Richardson and T. A. Clarke	The X-ray crystal structure of Shewanella oneidensis OmcA reveals new insight at the microbe–mineral interface	FEBS Letters	588(10) 1886–90
2014	10.1021/es4046549	Donovan, P. M., J. D. Blum, J. D. Demers, B. Gu, S. C. Brooks and J. Peryam	Identification of Multiple Mercury Sources to Stream Sediments near Oak Ridge, TN, USA	Environmental Science & Technology	48(7) 3666–74
2013	10.1021/es402697u	Zheng, W., H. Lin, B. F. Mann, L. Liang and B. Gu	Oxidation of Dissolved Elemental Mercury by Thiol Compounds under Anoxic Conditions	Environmental Science & Technology	47(22) 12827–34
2013	10.1021/jz401075b	Riccardi, D., H.-B. Guo, J. M. Parks, B. Gu, A. O. Summers, S. M. Miller, L. Liang and J. C. Smith	Why Mercury Prefers Soft Ligands	The Journal of Physical Chemistry Letters	4(14) 2317–22
2013	10.1021/ct300296k	Riccardi, D., H.-B. Guo, J. M. Parks, B. Gu, L. Liang and J. C. Smith	Cluster-Continuum Calculations of Hydration Free Energies of Anions and Group 12 Divalent Cations	Journal of Chemical Theory and Computation	9(1) 555–69
2013	10.1126/science.1230667	Parks, J. M., A. Johs, M. Podar, R. Bridou, R. A. Hurt, et al.	The Genetic Basis for Bacterial Mercury Methylation	Science	339(6125) 1332–35
2013	10.1016/j.envres.2013.03.013	Miller, C. L., D. B. Watson, B. P. Lester, K. A. Lowe, E. M. Pierce and L. Liang	Characterization of soils from an industrial complex contaminated with elemental mercury	Environmental Research	125 20–29
2013	10.1071/EN12199	Kocman, D., S. C. Brooks, C. L. Miller and X. L. Yin	Evaluation of centrifugal ultrafilters for size fractionation of total mercury and methylmercury in freshwaters	Environmental Chemistry	10(4) 323–32
2013	10.1038/ngeo1894	Hu, H., H. Lin, W. Zheng, S. J. Tomanicek, A. Johs, X. Feng, D. A. Elias, L. Liang and B. Gu	Oxidation and methylation of dissolved elemental mercury by anaerobic bacteria	Nature Geoscience	6(9) 751–54
2013	10.1021/es400527m	Hu, H., H. Lin, W. Zheng, B. Rao, X. Feng, L. Liang, D. A. Elias and B. Gu	Mercury Reduction and Cell-Surface Adsorption by Geobacter sulfurreducens PCA	Environmental Science & Technology	47(19) 10922–30
2013	10.1021/es400414a	Graham, A. M., G. R. Aiken and C. C. Gilmour	Effect of Dissolved Organic Matter Source and Character on Microbial Hg Methylation in Hg–S–DOM Solutions	Environmental Science & Technology	47(11) 5746–54
2013	10.1021/es403075t	Gilmour, C. C., M. Podar, A. L. Bullock, A. M. Graham, S. D. Brown, A. C. Somenahally, A. Johs, R. A. Hurt, Jr., K. L. Bailey and D. A. Elias	Mercury Methylation by Novel Microorganisms from New Environments	Environmental Science & Technology	47(20) 11810–20
2013	10.1128/genomea.00144-13	Brown, S. D., S. M. Utturkar, A. P. Arkin, A. M. Deutschbauer, D. A. Elias, T. C. Hazen and R. Chakraborty	Draft Genome Sequence for Desulfovibrio africanus Strain PCS	Genome Announcements	1(2)
2013	10.1128/genomea.00618-13	Brown, S. D., R. A. Hurt, C. C. Gilmour and D. A. Elias	Draft Genome Sequences for Three Mercury-Methylating, Sulfate-Reducing Bacteria	Genome Announcements	1(4)
2012	10.1021/es203402p	Zheng, W., L. Liang and B. Gu	Mercury Reduction and Oxidation by Reduced Natural Organic Matter in Anoxic Environments	Environmental Science & Technology	46(1) 292–99
2012	10.1107/S1744309111046082	Tomanicek, S. J., A. Johs, M. S. Sawhney, L. Shi and L. Liang	Crystallization and preliminary X-ray crystallographic studies of the outer membrane cytochrome OmcA from Shewanella oneidensis MR-1	Acta Crystallographica Section F	68 53–55
2012	10.3354/ame01563	Mosher, J. J., T. A. Vishnivetskaya, D. A. Elias, M. Podar, S. C. Brooks, S. D. Brown, C. C. Brandt and A. V. Palumbo	Characterization of the Deltaproteobacteria in contaminated and uncontaminated stream sediments and identification of potential mercury methylators	Aquatic Microbial Ecology	66 271–82
2012	10.1021/es3000933	Moberly, J. G., C. L. Miller, S. D. Brown, A. Biswas, C. C. Brandt, A. V. Palumbo and D. A. Elias	Role of Morphological Growth State and Gene Expression in Desulfovibrio africanus Strain Walvis Bay Mercury Methylation	Environmental Science & Technology	46(9) 4926–32
2012	10.1071/EN12096	Miller, C. L., L. Liang and B. Gu	Competitive ligand exchange reveals time dependant changes in the reactivity of Hg–dissolved organic matter complexes	Environmental Chemistry	9(6) 495–501
2012	10.1371/journal.pone.0041295	Hurt, R. A., Jr., S. D. Brown, M. Podar, A. V. Palumbo and D. A. Elias	Sequencing Intractable DNA to Close Microbial Genomes	PLoS ONE	7(7) e41295
2012	10.1016/j.scitotenv.2011.11.081	He, F., W. Zheng, L. Liang and B. Gu	Mercury photolytic transformation affected by low-molecular-weight natural organics in water	Science of The Total Environment	416 429–35
2012	10.1021/am301031g	He, F., W. Wang, J.-W. Moon, J. Howe, E. M. Pierce and L. Liang	Rapid Removal of Hg(II) from Aqueous Solutions Using Thiol-Functionalized Zn-Doped Biomagnetite Particles	ACS Applied Materials & Interfaces	4(8) 4373–79
2012	10.1021/jp3084293	Guo, H.-B., F. He, B. Gu, L. Liang and J. C. Smith	Time-Dependent Density Functional Theory Assessment of UV Absorption of Benzoic Acid Derivatives	The Journal of Physical Chemistry A	116(48) 11870–79
2012	10.1128/AEM.01792-12	Graham, A. M., A. L. Bullock, A. C. Maizel, D. A. Elias and C. C. Gilmour	Detailed Assessment of the Kinetics of Hg-Cell Association, Hg Methylation, and Methylmercury Degradation in Several Desulfovibrio Species	Applied and Environmental Microbiology	78(20) 7337–46
2012	10.1021/es203658f	Graham, A. M., G. R. Aiken and C. C. Gilmour	Dissolved Organic Matter Enhances Microbial Mercury Methylation Under Sulfidic Conditions	Environmental Science & Technology	46(5) 2715–23
2011	10.1128/AEM.01715-10	Vishnivetskaya, T. A., J. J. Mosher, A. V. Palumbo, Z. K. Yang, M. Podar, S. D. Brown, S. C. Brooks, B. Gu, G. R. Southworth, M. M. Drake, C. C. Brandt and D. A. Elias	Mercury and Other Heavy Metals Influence Bacterial Community Structure in Contaminated Tennessee Streams	Applied and Environmental Microbiology	77(1) 302–11
2011	10.1007/s11270-010-0500-3	U Senevirathna, W., H. Zhang and B. Gu	Effect of carboxylic and thiol ligands (oxalate, cysteine) on the kinetics of desorption of Hg(II) from kaolinite	Water, Air, & Soil Pollution	215(1) 573–84
2011	10.1039/C0MB00260G	Torres-García, W., S. D. Brown, R. H. Johnson, W. Zhang, G. C. Runger and D. R. Meldrum	Integrative analysis of transcriptomic and proteomic data of Shewanella oneidensis: missing value imputation using temporal datasets	Molecular BioSystems	7(4) 1093–104
2011	10.1073/pnas.1105781108	Schaefer, J. K., S. S. Rocks, W. Zheng, L. Liang, B. Gu and F. M. M. Morel	Active transport, substrate specificity, and methylation of Hg(II) in anaerobic bacteria	Proceedings of the National Academy of Sciences	108(21) 8714–19
2011	10.1016/j.jmb.2011.08.042	Johs, A., I. M. Harwood, J. M. Parks, R. E. Nauss, J. C. Smith, L. Liang and S. M. Miller	Structural Characterization of Intramolecular Hg²⁺ Transfer between Flexibly Linked Domains of Mercuric Ion Reductase	Journal of Molecular Biology	413(3) 639–56
2011	10.1002/9783527636402.ch20	Guo, H.-B., J. M. Parks, A. Johs and J. C. Smith	Mercury Detoxification by Bacteria: Simulations of Transcription Activation and Mercury—Carbon Bond Cleavage	Modeling of Molecular Properties	311–24
2011	10.1021/es200110y	Gu, B., W. Dong, L. Liang and N. A. Wall	Dissolution of Technetium(IV) Oxide by Natural and Synthetic Organic Ligands under both Reducing and Oxidizing Conditions	Environmental Science & Technology	45(11) 4771–77
2011	10.1073/pnas.1008747108	Gu, B., Y. Bian, C. L. Miller, W. Dong, X. Jiang and L. Liang	Mercury reduction and complexation by natural organic matter in anoxic environments	Proceedings of the National Academy of Sciences	108(4) 1479–83
2011	10.1128/AEM.02993-10	Gilmour, C. C., D. A. Elias, A. M. Kucken, S. D. Brown, A. V. Palumbo, C. W. Schadt and J. D. Wall	Sulfate-Reducing Bacterium Desulfovibrio desulfuricans ND132 as a Model for Understanding Bacterial Mercury Methylation	Applied and Environmental Microbiology	77(12) 3938–51
2011	10.1021/es104207g	Dong, W., Y. Bian, L. Liang and B. Gu	Binding Constants of Mercury and Dissolved Organic Matter Determined by a Modified Ion Exchange Technique	Environmental Science & Technology	45(8) 3576–83
2011	10.2136/sssaj2009.0373	Cropper, S. C., E. Perfect, E. H. van den Berg and M. A. Mayes	Comparison of Average and Point Capillary Pressure–Saturation Functions Determined by Steady-State Centrifugation	Soil Science Society of America Journal	75(1) 17–25
2011	10.1128/jb.05223-11	Brown, S. D., J. D. Wall, A. M. Kucken, C. C. Gilmour, M. Podar, et al.	Genome Sequence of the Mercury-Methylating and Pleomorphic Desulfovibrio africanus Strain Walvis Bay	Journal of Bacteriology	193(15) 4037–38
2011	10.1128/jb.00170-11	Brown, S. D., C. C. Gilmour, A. M. Kucken, J. D. Wall, D. A. Elias, et al.	Genome Sequence of the Mercury-Methylating Strain Desulfovibrio desulfuricans ND132	Journal of Bacteriology	193(8) 2078–79
2011	10.1016/j.envpol.2010.09.009	Brooks, S. C. and G. R. Southworth	History of mercury use and environmental contamination at the Oak Ridge Y-12 Plant	Environmental Pollution	159(1) 219–28
2011	10.1016/j.scitotenv.2011.06.037	Biswas, A., S. C. Brooks, C. L. Miller, J. J. Mosher, X. L. Yin and M. M. Drake	Bacterial growth phase influences methylmercury production by the sulfate-reducing bacterium Desulfovibrio desulfuricans ND132	Science of The Total Environment	409(19) 3943–48
2010	10.1128/AEM.00308-10	Vishnivetskaya, T. A., C. C. Brandt, A. S. Madden, M. M. Drake, J. E. Kostka, D. M. Akob, K. Küsel and A. V. Palumbo	Microbial Community Changes in Response to Ethanol or Methanol Amendments for U(VI) Reduction	Applied and Environmental Microbiology	76(17) 5728–35
2010	10.1016/j.cageo.2010.01.013	Tang, G., M. A. Mayes, J. C. Parker and P. M. Jardine	CXTFIT/Excel–A modular adaptable code for parameter estimation, sensitivity analysis and uncertainty analysis for laboratory or field tracer experiments	Computers & Geosciences	36(9) 1200–09
2010	10.1021/es902194x	Stewart, B. D., M. A. Mayes and S. Fendorf	Impact of Uranyl−Calcium−Carbonato Complexes on Uranium(VI) Adsorption to Synthetic and Natural Sediments	Environmental Science & Technology	44(3) 928–34
2010	10.1007/s00248-010-9734-2	Porat, I., T. A. Vishnivetskaya, J. J. Mosher, C. C. Brandt, Z. K. Yang, S. C. Brooks, L. Liang, M. M. Drake, M. Podar, S. D. Brown and A. V. Palumbo	Characterization of Archaeal Community in Contaminated and Uncontaminated Surface Stream Sediments	Microbial Ecology	60(4) 784–95
2010	10.1016/j.bpj.2010.03.049	Johs, A., L. Shi, T. Droubay, J. F. Ankner and L. Liang	Characterization of the Decaheme c-Type Cytochrome OmcA in Solution and on Hematite Surfaces by Small Angle X-Ray Scattering and Neutron Reflectometry	Biophysical Journal	98(12) 3035–43
2010	10.1016/j.jmb.2010.03.020	Guo, H.-B., A. Johs, J. M. Parks, L. Olliff, S. M. Miller, A. O. Summers, L. Liang and J. C. Smith	Structure and Conformational Dynamics of the Metalloregulator MerR upon Binding of Hg(II)	Journal of Molecular Biology	398(4) 555–68
2010	10.1071/EN09091	Dong, W., L. Liang, S. Brooks, G. Southworth and B. Gu	Roles of dissolved organic matter in the speciation of mercury and methylmercury in a contaminated ecosystem in Oak Ridge, Tennessee	Environmental Chemistry	7(1) 94–102
2009	10.1186/1471-2164-10-131	Yang, Y., D. P. Harris, F. Luo, W. Xiong, M. Joachimiak, L. Wu, P. Dehal, J. Jacobsen, Z. Yang, A. V. Palumbo, A. P. Arkin and J. Zhou	Snapshot of iron response in Shewanella oneidensis by gene network reconstruction	BMC Genomics	10(1) 131
2009	10.2136/vzj2008.0119	van den Berg, E. H., E. Perfect, C. Tu, P. S. K. Knappett, T. P. Leao and R. W. Donat	Unsaturated Hydraulic Conductivity Measurements with Centrifuges: A Review	Vadose Zone Journal	8(3) 531–47
2009	10.1016/j.jhydrol.2009.07.063	Tang, G., M. A. Mayes, J. C. Parker, X. L. Yin, D. B. Watson and P. M. Jardine	Improving parameter estimation for column experiments by multi-model evaluation and comparison	Journal of Hydrology	376(3) 567–78
2009	10.1021/ja9016123	Parks, J. M., H. Guo, C. Momany, L. Liang, S. M. Miller, A. O. Summers and J. C. Smith	Mechanism of Hg−C Protonolysis in the Organomercurial Lyase MerB	Journal of the American Chemical Society	131(37) 13278–85
2009	10.1021/es901891t	Miller, C. L., G. Southworth, S. Brooks, L. Liang and B. Gu	Kinetic Controls on the Complexation between Mercury and Dissolved Organic Matter in a Contaminated Environment	Environmental Science & Technology	43(22) 8548–53
2009	10.2136/sssaj2008.0317	Mayes, M. A., G. Tang, P. M. Jardine, L. D. McKay, X. L. Yin, M. N. Pace, J. C. Parker, F. Zhang, T. L. Mehlhorn and R. Dansby-Sparks	Influence of Sedimentary Bedding on Reactive Transport Parameters under Unsaturated Conditions	Soil Science Society of America Journal	73(6) 1938–46
2009	10.2134/jeq2008.0071	Madden, A. S., A. V. Palumbo, B. Ravel, T. A. Vishnivetskaya, T. J. Phelps, C. W. Schadt and C. C. Brandt	Donor-dependent Extent of Uranium Reduction for Bioremediation of Contaminated Sediment Microcosms	Journal of Environmental Quality	38(1) 53–60
2009	10.1021/es8013979	Luo, W. and B. Gu	Dissolution and Mobilization of Uranium in a Reduced Sediment by Natural Humic Substances under Anaerobic Conditions	Environmental Science & Technology	43(1) 152–56
2009	10.1128/AEM.01393-08	Learman, D. R., H. Yi, S. D. Brown, S. L. Martin, G. G. Geesey, A. M. Stevens and M. F. Hochella	Involvement of Shewanella oneidensis MR-1 LuxS in Biofilm Development and Sulfur Metabolism	Applied and Environmental Microbiology	75(5) 1301–07

WaDE and CI Publications

Name	Placement
Angela Belic	Graduate Student, George Washington University
Yongrong Bian	Staff Scientist, Nanjing Institute of Soil Science, Chinese Academy of Sciences
Abir Biswas	Faculty, Evergreen State University
Maggie Black	Medical Student, Albert Einstein College of Medicine
Romain Bridou	University of Pau, France
Geoff Christensen	Post Doctoral Research Associate, University of Illinois at Urbana-Champaign
Bryan Crable	Research Scientist, UES, Inc., Air Force Research Laboratory
Wenming Dong	Staff Scientist, Lawrence Berkeley National Laboratory
Andrew Graham	Assistant Professor, Grinnell College
Hao-Bo Guo	Post Doctorate, University of Tennessee–Knoxville
Feng He	Assistant Professor, Zhejiang University of Technology
Haiyan Hu	Staff Scientist, Geochemistry Institute, Chinese Academy of Sciences
Richard Hurt	Research Faculty, University of Tennessee
Ryne C. Johnston	Schrodinger, Inc.
Alexander Johs	ORNL Staff Scientist, 2013 Recipient Stanley Auerbach Award for Excellence in Environmental Sciences
Andrew King	Stay-at-home parent
David Kocman	Scientist, Jožef Stefan Institute
Hui Lin	Research Scientist, Dow Chemical
Hongwei Lou	Ph.D. Student, University of Science Technology of China
Benjamin Mann	Associate Principal Scientist, Merck
Carrie Miller	Assistant Professor, Troy University
James Moberly	Faculty, University of Idaho
Jennifer Mosher	Faculty, Marshall University
Todd Olsen	Sr. Staff Scientist, Geosyntec Consultants
Jerry Parks	Staff Scientist, Oak Ridge National Laboratory
Phuong Pham	Science Undergrade Laboratory Internship (SULI) Student
Iris Porat	Director of R&D, Global Future Solutions US
Yun Qian	Lab Manager, Florida International University
Balaji Rao	Post Doctoral Research Fellow, Texas Tech University
Demian Riccardi	Visiting Assistant Professor, Earlham College
Ami Riscassi	Research Scientist, University of Virginia; Chief Scientist, Shenandoah Watershed Program; Recipient of the 2014 GSA Subaru Outstanding Woman in Science Award
Katherine Rush	Ph.D. Student, University of Michigan
Mankaran Sawnhey	Medical Student, University of Memphis
Steve Smith
Anil Somenahally	Assistant Professor, Texas A&M University AgriLife Research and Extension Center
Steve Tomanicek	Wet Chemistry Department Supervisor, Galbraith Laboratories, Inc.
Tatiana Vishnivetskaya	Research Faculty, University of Tennessee
Wang Zheng	Canadian MAGNET Fellowship
Jing Zhou	Post Doctoral Research Fellow, National Institutes of Health

Apr 12, 2023 New ORNL Mercury SFA Annual Report

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Water flowing through simulated streams in laboratory. — Apr 12, 2023 Upgrades to Aquatic Ecology Laboratory Facilitate Mercury Research

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Apr 12, 2023 ORNL Explores New Ways to Tackle Mercury Cleanup

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WaDE: Watershed Dynamics and Evolution

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Apr 12, 2023 New ORNL Mercury SFA Annual Report

Apr 12, 2023 Upgrades to Aquatic Ecology Laboratory Facilitate Mercury Research

Apr 12, 2023 ORNL Explores New Ways to Tackle Mercury Cleanup

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