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S10 Mechanisms of microbial mercury methylation and resistance

Tuesday, 26 July, 2011

TS10-P1 — 11:00-12:00 and 17:30-18:30
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ASSESSMENT OF BACTERIAL MERCURY RESISTANCE BY THE QUANTIFICATION OF HG(II) REDUCTION
Authors: VASCONCELLOS, Ana C1, BARROCAS, Paulo R1, MOREIRA, Josino C2, JACOB, Silvana C3, DUQUE, Sheila S4, BEZERRA, Adriana L1, WASSERMAN, Julio C5, HACON, Sandra S6
(1) Department of Sanitation and Environmental Health/ ENSP - Oswaldo Cruz Foundation, anavasconcellos@ensp.fiocruz.br; (2) CESTEH - Oswaldo Cruz Foundation; (3) INCQS - Oswaldo Cruz Foundation; (4) IOC - Oswaldo Cruz Foundation; (5) Federal Fluminense University; (6) Oswaldo Cruz Foundation.
TS10-P2 — 11:00-12:00 and 17:30-18:30
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SOLUBILITY OPTIMIZATION OF THE HG(II)-SPECIFIC TRANSCRIPTIONAL REGULATOR MERR FOR THE STUDY OF MOLECULAR STRUCTURE AND DYNAMICS
Authors: TOMANICEK, Stephen J.1, JOHS, Alexander 1, SUMMERS, Anne O.2, OLLIFF, Lyn2, LIANG, Liyuan1, SMITH, Jeremy C.3
(1)Environmental Sciences Division, Oak Ridge National Laboratory, tomaniceksj@ornl.gov; (2) Department of Microbiology, University of Georgia; (3) University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics.
TS10-P3 — 11:00-12:00 and 17:30-18:30
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EFFECT OF SELENIUM ON THE METHYLATION OF MERCURY BY THE SULFUR-REDUCING BACTERIUM DESULFOVIBRIO DESULFURICANS
Author: BELZILE, Nelson1
(1)Laurentian University, nbelzile@laurentian.ca
TS10-P4 — 11:00-12:00 and 17:30-18:30
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COMPARISON OF METHYLMERCURY PRODUCTION RATES BY DESULFOVIBRIO SPECIES IN SHORT-TERM WASHED CELL ASSAYS
Authors: GRAHAM, Andrew M.1, GILMOUR, Cynthia C.1
(1) Smithsonian Environmental Research Center, grahaman@si.edu
TS10-P5 — 11:00-12:00 and 17:30-18:30
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SMALL THIOLS ENHANCE MERCURY METHYLATION RATES BY SULFATE-REDUCING BACTERIUM DESULFOVIBRIO DESULFURICANS ND132 BY ENHANCING HG SOLUBILITY
Authors: GILMOUR, Cynthia1, GRAHAM, Andrew M.1, ELIAS, Dwayne A2
(1) Smithsonian Environmental Research Center, gilmourc@si.edu; (2) Oak Ridge National Laboratory.
TS10-P6 — 11:00-12:00 and 17:30-18:30
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ANALYTICAL PROBLEMS TO QUANTIFY MERCURY REDUCTASE ACTIVITY AND USE IT TO ASSESS BACTERIA POTENTIAL FOR BIOREMEDIATION OF MERCURY POLLUTION
Authors: BEZERRA, Adriana L1, SILVA FILHO, Moacelio V2, BARROCAS, Paulo R1, VASCONCELLOS, Ana C1, DUQUE, Sheila S3, REBELLO, Raquel C4
(1) Department of Sanitation and Environmental Health, ENSP-Fiocruz, adrianalima@ensp.fiocruz.br; (2) CESTEH, ENSP-Fiocruz; (3) IOC, Fiocruz; (4) Biology Department, ENSP-Fiocruz.
TS10-P7 — 11:00-12:00 and 17:30-18:30
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SULFATE-REDUCING PROKARYOTES COLONIZING ROOTS OF AQUATIC MACROPHYTES: OCCURRENCE, IMPACT ON MERCURY METHYLATION AND ENVIRONMENTAL RISKS ASSESSMENT.
Authors: GENTÈS, Sophie1, MONPERRUS, Mathilde2, GONI, Maria-Soledad3, LEGEAY, Alexia4, MAURY-BRACHET, Régine5, AMOUROUX, David6, DAVAIL, Stéphane3, ANDRÉ, Jean-Marc3, GUYONEAUD, Rémy3
(1) Environnement et Microbiologie (IPREM UMR 5254),Université de Pau et des Pays de l’Adour, France, sophie.gentes@univ-pau.fr; (2) Chimie Analytique Bio Inorganique et Environnement (IPREM UMR 5254),Université de Pau et des Pays de l’Adour, France; (3) Environnement et Microbiologie (IPREM UMR 5254); (4) Ecotoxicologie Aquatique (EPOC UMR 5805),Université Bordeaux 1, France; (5) Ecotoxicologie Aquatique (EPOC UMR 5805); (6) Chimie Analytique Bio Inorganique et Environnement (IPREM UMR 5254);
TS10-P8 — 11:00-12:00 and 17:30-18:30
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IS THERE A NOVEL MERCURY RESISTANCE MECHANISM AMONG CHEMOSYNTHETIC BACTERIA FROM DEEP SEA HYDROTHERMAL VENTS?
Authors: CRUZ, Kimberly1, CRESPO-MEDINA, Melitza2, BORIN, Sara3, CRUZ, Ramaydalis4, VETRIANI, Costantino5, BARKAY, Tamar6
(1) Joint Graduate Program in Toxicology, Rutgers University & University of Medicine and Dentistry of New Jersey , kimcruz@eden.rutgers.edu; (2) Department of Marine Sciences, University of Georgia; (3) Department of Agriculture Microbiology, Milan University; (4) Graduate Program in Environmental Science, Rutgers University; (5) Institute of Marine and Coastal Sciences, Rutgers University ; (6) Department of Biochemistry and Microbiology, Rutgers University.
TS10-P9 — 11:00-12:00 and 17:30-18:30
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THE IMPORTANCE OF BIOLOGICAL DEMETHYLATION IN THE MERCURY CYCLING OF A COASTAL POND
Authors: MUNSON, Kathleen M1, LAMBORG, Carl H.2, MINCER, Tracy J.2, BOTHNER, Michael H. 3, HARKNESS, Jennifer S. 4
(1) MIT/WHOI Joint Program in Chemical Oceanography, kmunson@mit.edu; (2) Woods Hole Oceanographic Institution; (3) US Geological Society; (4) Vassar College.
TS10-P10 — 11:00-12:00 and 17:30-18:30
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THE DYNAMIC NATURE OF MERCURIC ION REDUCTASE MERA
Authors: JOHS, Alexander1, PARKS, Jerry M.1, HARWOOD, Ian M.2, SMITH, Jeremy C.1, MILLER, Susan M.2, LIANG, Liyuan1
(1)Oak Ridge National Laboratory, johsa@ornl.gov; (2) University of California, San Francisco;
TS10-P11 — 11:00-12:00 and 17:30-18:30
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MOLECULAR DYNAMICS SIMULATIONS OF OPERATOR DNA DISTORTIONS MADE BY TRANSCRIPTIONAL REGULATOR MERR
Authors: GUO, Hao-Bo1, JOHS, Alexander1, PARKS, Jerry M.1, SUMMERS, Anne O.2, LIANG, Liyuan1, SMITH, Jeremy C.1
(1) Oak Ridge National Laboratory, USA , guoh1@ornl.gov; (2) The University of Georgia, Athens ;
TS10-P12 — 11:00-12:00 and 17:30-18:30
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ISOLATION AND CHARACTERIZATION OF BACTERIA RESISTANT TO MERCURY COMPOUNDS TO EVALUATE METHYLATION PROCESSES IN CONTAMINATED AREAS – THE PARTICULAR CASE OF TAGUS ESTUARY
Authors: FIGUEIREDO, Neusa1, SERRALHEIRO, Maria Luísa2, LINO, Ana Rosa3, CARVALHO, Cristina4
(1) Faculty of Farmacy, University of Lisbon; (2) Faculty of Sciences, University of Lisbon; (3) Faculty of Sciences; University of Lisbon; (4) Faculty of Farmacy - University of Lisbon.
TS10-P13 — 11:00-12:00 and 17:30-18:30
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ARE CERTAIN PERIPHYTON COMMUNITIES MORE RESPONSIBLE OF METHYLMERCURY PRODUCTION THAN OTHERS? AN HYPOTHESIS TESTED IN TWO FLOODPLAIN LAKES IN THE PANTANAL OF MATO GROSSO, BRAZIL
Authors: LÁZARO, Wilkinson L.1, GUIMARÃES, Jean R.D.2, IGNÁCIO, Áurea R.A.3, DA SILVA, Carolina J.4, DÍEZ, Sergi S.5
(1) Pantanal’s Limnology, Biodiversity and Ethnobiology Research Center (CELBE). Mato Grosso State University, Brazil, wilkinsonlopes@hotmail.com; (2) Tracers Laboratory, IBCCF, Rio de Janeiro Federal University (UFRJ), Rio de Janeiro, Brazil; (3) Neurotoxicology laboratory, Mato Grosso State University, Brazil; (4) Pantanal’s Limnology, Biodiversity and Ethnobiology Research Center (CELBE-UNEMAT), Mato Grosso State University, Brazil; (5) Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDÆA-CSIC), Barcelona, Spain.
TS10-P14 — 11:00-12:00 and 17:30-18:30
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DESIGNING A PCR-KIT FOR DETECTION OF POTENTIAL BACTERIA METHYLATING MERCURY
Authors: RANNEKLEV, Sissel Brit1, REFSETH, Unn Hilde1, VEITEBERG BRAATEN, Hans Fredrik1, LARSSEN, Thorjørn1
(1) Norwegian institute for Water Research, SRA@niva.no
TS10-P15 — 11:00-12:00 and 17:30-18:30
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BIOGEOCHEMICAL FACTORS INFLUENCING NET MERCURY METHYLATION IN CONTAMINATED FRESHWATER SEDIMENTS FROM THE ST. LAWRENCE RIVER IN CORNWALL, ONTARIO, CANADA
Authors: AVRAMESCU, Mary-Luyza1, YUMIHOZE, Emmanuel1, HINTELMANN, Holger2, RIDAL, Jeff3, FORTIN, Danielle1, LEAN, David1
(1) University of Ottawa; (2) Trent University; (3) St. Lawrence River Institute;
TS10-P16 — 11:00-12:00 and 17:30-18:30
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METHYLMERCURY AND MERCURY METHYLATION IN PERIPHYTON FROM THE TAPAJOS RIVER (BRAZILIAN AMAZON)
Authors: MIRANDA, Marcio R.1, GUIMARAES, Jean Remy D.2, COELHO-SOUZA, Sergio A.1, POIRIER, Hugo3, LUCOTTE, Marc3, MERGLER, Donna3
(1) Inpetam, topo@biof.ufrj.br ; (2) IBCCF/Universidade Federal do Rio de Janeiro; (3) UQAM;
TS10-P17 — 11:00-12:00 and 17:30-18:30
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TWO PATHWAYS FOR THE ENHANCEMENT OF MERCURY METHYLATION BY SYNTROPHIC INTERACTIONS
Authors: YU, Ri-Qing1, HINES, Mark E.2
(1)Rutgers University, rqyu@eden.rutgers.edu; (2) UMass Lowell.
TS10-P18 — 11:00-12:00 and 17:30-18:30
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GENETIC APPROACHES IN MERCURY METHYLATION ENZYMOLOGY FOR DESULFOVIBRIO DESULFURICANS ND132
Authors: KUCKEN, Amy M1, SMITH, Steven D1, BROWN, Steven D2, ELIAS, Dwayne A2, WALL, Judy D1
(1) University of Missouri, kuckena@missouri.edu; (2) Oak Ridge National Laboratory;
Tuesday, 26 July, 2011