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Browsing by Author "Brown, Steven D."

Browsing by Author "Brown, Steven D."

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  • Carbon Amendments Alter Microbial Community Structure and Net Mercury Methylation Potential in Sediments 
    Christensen, Geoff A.; Somenahally, Anil C.; Moberly, James G.; Miller, Carrie M.; King, Andrew J.; Gilmour, Cynthia C.; Brown, Steven D.; Podar, Mircea; Brandt, Craig C.; Brooks, Scott C.; Palumbo, Anthony V.; Wall, Judy D.; Elias, Dwayne A. (2018)
    Neurotoxic methylmercury (MeHg) is produced by anaerobic Bacteria and Archaea possessing the genes hgcAB, but it is unknown how organic substrate and electron acceptor availability impacts the distribution and abundance ...
  • Determining the Reliability of Measuring Mercury Cycling Gene Abundance with Correlations with Mercury and Methylmercury Concentrations 
    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. (2019)
    Methylmercury (MeHg) is a bioaccumulative toxic contaminant in many ecosystems, but factors governing its production are poorly understood. Recent work has shown that the anaerobic microbial conversion of mercury (Hg) to ...
  • Development and Validation of Broad-Range Qualitative and Clade-Specific Quantitative Molecular Probes for Assessing Mercury Methylation in the Environment 
    Christensen, Geoff A.; Wymore, Ann M.; King, Andrew J.; Podar, Mircea; Hurt, Richard A.; Santillan, Eugenio U.; Soren, Ally; Brandt, Craig C.; Brown, Steven D.; Palumbo, Anthony V.; Wall, Judy D.; Gilmour, Cynthia C.; Elias, Dwayne A. (2016)
    Two genes, hgcA and hgcB, are essential for microbial mercury (Hg)-methylation. Detection and estimation of their abundance, in conjunction with Hg concentration, bioavailability and biogeochemistry is critical in determining ...
  • Genome Sequence of Mercury-Methylating and Pleomorphic Desulfovibrio africanus strain Walvis Bay 
    Brown, Steven D.; Wall, Judy D.; Kucken, Amy M.; Gilmour, Cynthia C.; Podar, Mircea; Brandt, Craig C.; Teshima, Hazuki; Detter, John C.; Han, Cliff S.; Land, Miriam L.; Lucas, Susan; Han, James; Pennacchio, Len; Nolan, Matt; Pitluck, Sam; Woyke, Tanja; Goodwin, Lynne; Palumbo, Anthony V.; Elias, Dwayne A. (2011)
    Desulfovibrio africanus strain Walvis Bay is an anaerobic sulfate-reducing bacterium (SRB) capable of producing methylmercury (MeHg), a potent human neurotoxin. The mechanism of methylation by this and other organisms is ...
  • Genome Sequence of Mercury-Methylating Desulfovibrio desulfuricans ND132 
    Brown, Steven D.; Gilmour, Cynthia C.; Kucken, Amy M.; Wall, Judy D.; Elias, Dwayne A.; Podar, Mircea; Chertkov, Olga; Held, Brittany; Bruce, David C.; Detter, John C.; Tapia, Roxanne; Han, Cliff S.; Goodwin, Lynne A.; Cheng, Jan-Fang; Pitluck, Samuel; Woyke, Tanja; Mikhailova, Natalia; Ivanova, Natalia N.; Han, James; Lucas, Susan; Lapidus, Alla L.; Land, Miriam L.; Hauser, Loren J.; Palumbo, Anthony V. (2011)
    Desulfovibrio desulfuricans strain ND132 is an anaerobic sulfate-reducing bacterium (SRB) capable of producing methylmercury (MeHg), a potent human neurotoxin. The mechanism of methylation by this and other organisms is ...
  • Global prevalence and distribution of genes and microorganisms involved in mercury methylation 
    Podar, Mircea; Gilmour, Cynthia C.; Brandt, Craig C.; Soren, Allyson; Brown, Steven D.; Crable, Bryan R.; Palumbo, Anthony V.; Somenahally, Anil C.; Elias, Dwayne A. (2015)
    Mercury (Hg) methylation produces the neurotoxic, highly bioaccumulative methylmercury (MeHg). The highly conserved nature of the recently identified Hg methylation genes hgcAB provides a foundation for broadly evaluating ...
  • <I>Pseudodesulfovibrio mercurii</I> sp. nov., a mercury- methylating bacterium isolated from sediment 
    Gilmour, Cynthia C.; Soren, Ally Bullock; Gionfriddo, Caitlin M.; Podar, Mircea; Wall, Judy D.; Brown, Steven D.; Michener, Joshua K.; Urriza, Maria Soledad Goni; Elias, Dwayne A. (2021)
    The sulfate- reducing, mercury- methylating strain ND132T was isolated from the brackish anaerobic bottom sediments of Chesapeake Bay, USA. Capable of high levels of mercury (Hg) methylation, ND132T has been widely used ...
  • Mercury Methylation by Novel Microorganisms from New Environments 
    Gilmour, Cynthia C.; Podar, Mircea; Bullock, Allyson L.; Graham, Andrew M.; Brown, Steven D.; Somenahally, Anil C.; Johs, Alex; Hurt, Richard A.; Bailey, Kathryn L.; Elias, Dwayne A. (2013)
  • Sulfate-Reducing Bacterium <I>Desulfovibrio desulfuricans</I> ND132 as a Model for Understanding Bacterial Mercury Methylation 
    Gilmour, Cynthia C.; Elias, Dwayne A.; Kucken, Amy M.; Brown, Steven D.; Palumbo, Anthony V.; Schadt, Christopher W.; Wall, Judy D. (2011)
    We propose the use of Desulfovibrio desulfuricans ND132 as a model species for understanding the mechanism of microbial Hg methylation. Strain ND132 is an anaerobic dissimilatory sulfate-reducing bacterium (DSRB), isolated ...
  • Supplementary Materials for: Global prevalence and distribution of genes and microorganisms involved in mercury methylation 
    Podar, Mircea; Gilmour, Cynthia C.; Brandt, Craig C.; Soren, Allyson; Brown, Steven D.; Crable, Bryan R.; Palumbo, Anthony V.; Somenahally, Anil C. (Smithsonian Environmental Research Center, 2015)

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