Search Results - "Gionfriddo, Caitlin M."

Mercury methylation by metabolically versatile and cosmopolitan marine bacteria by Lin, Heyu, Ascher, David B., Myung, Yoochan, Lamborg, Carl H., Hallam, Steven J., Gionfriddo, Caitlin M., Holt, Kathryn E., Moreau, John W.

“…Microbes transform aqueous mercury (Hg) into methylmercury (MeHg), a potent neurotoxin that accumulates in terrestrial and marine food webs, with potential…”
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Microbial mercury methylation in Antarctic sea ice by Gionfriddo, Caitlin M., Tate, Michael T., Wick, Ryan R., Schultz, Mark B., Zemla, Adam, Thelen, Michael P., Schofield, Robyn, Krabbenhoft, David P., Holt, Kathryn E., Moreau, John W.

“…Atmospheric deposition of mercury onto sea ice and circumpolar sea water provides mercury for microbial methylation, and contributes to the bioaccumulation of…”
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An Improved hgcAB Primer Set and Direct High-Throughput Sequencing Expand Hg-Methylator Diversity in Nature by Gionfriddo, Caitlin M, Wymore, Ann M, Jones, Daniel S, Wilpiszeski, Regina L, Lynes, Mackenzie M, Christensen, Geoff A, Soren, Ally, Gilmour, Cynthia C, Podar, Mircea, Elias, Dwayne A

“…The gene pair is essential for microbial mercury methylation. Our understanding of its abundance and diversity in nature is rapidly evolving. In this study we…”
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Pseudodesulfovibrio mercurii sp. nov., a mercury-methylating bacterium isolated from sediment by Gilmour, Cynthia C, Soren, Ally Bullock, Gionfriddo, Caitlin M, Podar, Mircea, Wall, Judy D, Brown, Steven D, Michener, Joshua K, Urriza, Maria Soledad Goñi, Elias, Dwayne A

“…The sulfate-reducing, mercury-methylating strain ND132 was isolated from the brackish anaerobic bottom sediments of Chesapeake Bay, USA. Capable of high levels…”
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The Effect of Natural Organic Matter on Mercury Methylation by Desulfobulbus propionicus 1pr3 by Moreau, John W, Gionfriddo, Caitlin M, Krabbenhoft, David P, Ogorek, Jacob M, DeWild, John F, Aiken, George R, Roden, Eric E

“…Methylation of tracer and ambient mercury ((200)Hg and (202)Hg, respectively) equilibrated with four different natural organic matter (NOM) isolates was…”
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In-field bioreactors demonstrate dynamic shifts in microbial communities in response to geochemical perturbations by Wilpiszeski, Regina L, Gionfriddo, Caitlin M, Wymore, Ann M, Moon, Ji-Won, Lowe, Kenneth A, Podar, Mircea, Rafie, Sa'ad, Fields, Matthew W, Hazen, Terry C, Ge, Xiaoxuan, Poole, Farris, Adams, Michael W. W, Chakraborty, Romy, Fan, Yupeng, Van Nostrand, Joy D, Zhou, Jizhong, Arkin, Adam P, Elias, Dwayne A

“…Subsurface microbial communities mediate the transformation and fate of redox sensitive materials including organic matter, metals and radionuclides. Few…”
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Nutrient Exposure Alters Microbial Composition, Structure, and Mercury Methylating Activity in Periphyton in a Contaminated Watershed by Carrell, Alyssa A, Schwartz, Grace E, Cregger, Melissa A, Gionfriddo, Caitlin M, Elias, Dwayne A, Wilpiszeski, Regina L, Klingeman, Dawn M, Wymore, Ann M, Muller, Katherine A, Brooks, Scott C

“…The conversion of mercury (Hg) to monomethylmercury (MMHg) is a critical area of concern in global Hg cycling. Periphyton biofilms may harbor significant…”
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Quantification of Mercury Bioavailability for Methylation Using Diffusive Gradient in Thin-Film Samplers by Ndu, Udonna, Christensen, Geoff A, Rivera, Nelson A, Gionfriddo, Caitlin M, Deshusses, Marc A, Elias, Dwayne A, Hsu-Kim, Heileen

“…Mercury-contaminated sediment and water contain various Hg species, with a small fraction available for microbial conversion to the bioaccumulative neurotoxin…”
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Determining the Reliability of Measuring Mercury Cycling Gene Abundance with Correlations with Mercury and Methylmercury Concentrations by Christensen, Geoff A, Gionfriddo, Caitlin M, King, Andrew J, Moberly, James G, Miller, Carrie L, Somenahally, Anil C, Callister, Stephen J, Brewer, Heather, Podar, Mircea, Brown, Steven D, Palumbo, Anthony V, Brandt, Craig C, Wymore, Ann M, Brooks, Scott C, Hwang, Chiachi, Fields, Matthew W, Wall, Judy D, Gilmour, Cynthia C, Elias, Dwayne A

“…Methylmercury (MeHg) is a bioaccumulative toxic contaminant in many ecosystems, but factors governing its production are poorly understood. Recent work has…”
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Transcriptional Control of hgcAB by an ArsR-Like Regulator in Pseudodesulfovibrio mercurii ND132 by Gionfriddo, Caitlin M, Soren, Ally Bullock, Wymore, Ann M, Hartnett, D Sean, Podar, Mircea, Parks, Jerry M, Elias, Dwayne A, Gilmour, Cynthia C

“…The gene pair encodes mercury (Hg) methylation capability in a diverse group of microorganisms, but its evolution and transcriptional regulation remain…”
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Genome-Resolved Metagenomics and Detailed Geochemical Speciation Analyses Yield New Insights into Microbial Mercury Cycling in Geothermal Springs by Gionfriddo, Caitlin M, Stott, Matthew B, Power, Jean F, Ogorek, Jacob M, Krabbenhoft, David P, Wick, Ryan, Holt, Kathryn, Chen, Lin-Xing, Thomas, Brian C, Banfield, Jillian F, Moreau, John W

“…Geothermal systems emit substantial amounts of aqueous, gaseous, and methylated mercury, but little is known about microbial influences on mercury speciation…”
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Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils by Pierce, Caroline E., Furman, Olha S., Nicholas, Sarah L., Wasik, Jill Coleman, Gionfriddo, Caitlin M., Wymore, Ann M., Sebestyen, Stephen D., Kolka, Randall K., Mitchell, Carl P. J., Griffiths, Natalie A., Elias, Dwayne A., Nater, Edward A., Toner, Brandy M.

“…We examined the composition and spatial correlation of sulfur and mercury pools in peatland soil profiles by measuring sulfur speciation by 1s X-ray absorption…”
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A consensus protocol for the recovery of mercury methylation genes from metagenomes by Capo, Eric, Peterson, Benjamin D., Kim, Minjae, Jones, Daniel S., Acinas, Silvia G., Amyot, Marc, Bertilsson, Stefan, Björn, Erik, Buck, Moritz, Cosio, Claudia, Elias, Dwayne A., Gilmour, Cynthia, Goñi‐Urriza, Marisol, Gu, Baohua, Lin, Heyu, Liu, Yu‐Rong, McMahon, Katherine, Moreau, John W., Pinhassi, Jarone, Podar, Mircea, Puente‐Sánchez, Fernando, Sánchez, Pablo, Storck, Veronika, Tada, Yuya, Vigneron, Adrien, Walsh, David A., Vandewalle‐Capo, Marine, Bravo, Andrea G., Gionfriddo, Caitlin M.

“…Mercury (Hg) methylation genes (hgcAB) mediate the formation of the toxic methylmercury and have been identified from diverse environments, including…”
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Metagenome-Assembled Genome Sequences of Novel Prokaryotic Species from the Mercury-Contaminated East Fork Poplar Creek, Oak Ridge, Tennessee, USA by Kim, Minjae, Wilpiszeski, Regina L, Wells, Michael, Wymore, Ann M, Gionfriddo, Caitlin M, Brooks, Scott C, Podar, Mircea, Elias, Dwayne A

“…We sequenced two metagenomes of sediments from the East Fork Poplar Creek in the Oak Ridge Reservation (Oak Ridge, TN), a natural stream that has been…”
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Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils by Pierce, Caroline E., Furman, Olha S., Nicholas, Sarah L., Wasik, Jill Coleman, Gionfriddo, Caitlin M., Wymore, Ann M., Sebestyen, Stephen D., Kolka, Randall K., Mitchell, Carl P. J., Griffiths, Natalie A., Elias, Dwayne A., Nater, Edward A., Toner, Brandy M.

“…We examined the composition and spatial correlation of sulfur and mercury pools in peatland soil profiles by measuring sulfur speciation by 1s X-ray absorption…”
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Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils by Pierce, Caroline E., Furman, Olha S., Nicholas, Sarah L., Wasik, Jill Coleman, Gionfriddo, Caitlin M., Wymore, Ann M., Sebestyen, Stephen D., Kolka, Randall K., Mitchell, Carl P. J., Griffiths, Natalie A., Elias, Dwayne A., Nater, Edward A., Toner, Brandy M.

“…We examined the composition and spatial correlation of sulfur and mercury pools in peatland soil profiles by measuring sulfur speciation by 1s X-ray absorption…”
Get full text