Navigation Links
Bacterial genome may hold answers to mercury mystery
Date:4/8/2011

OAK RIDGE, Tenn, April 8, 2011 -- A newly sequenced bacterial genome from a team led by the Department of Energy's Oak Ridge National Laboratory could contain clues as to how microorganisms produce a highly toxic form of mercury.

Methylmercury, a potent human neurotoxin, appears in the environment when certain naturally occurring bacteria transform inorganic mercury into its more toxic cousin. Few bacterial species are capable of this conversion, and exactly how the transformation takes place has been a matter of debate for decades.

"What is not known are the genes or the proteins that allow these bacteria to mediate the transformation," said ORNL's Steven Brown, who led a research team to sequence the genome of a bacterium in the Desulfovibrio genus that is capable of methylating mercury.

The new genome, sequenced at the California-based DOE Joint Genome Institute (JGI) and published in the Journal of Bacteriology, lays the foundation for future research to examine the little understood mechanisms behind the production of methylmercury.

Desulfovibrio desulfuricans strain ND132 is an organism that thrives in sediments and soils without oxygen the places in lakes, streams and wetlands where mercury contamination is converted to methylmercury. It is representative of a group of organisms that "breathe" sulfate instead of oxygen and are largely responsible for mercury methylation in nature.

"This is the first Desulfovibrio genome that will methylate mercury that's been published," Brown said. "Now that we have this resource, we can take a comparative approach and look at what is different between the bacteria that can methylate mercury and those that are unable to."

The introduction of mercury into the environment primarily stems from its use in industrial processes and from the burning of fossil fuels. Although industry and regulators have worked to minimize the release of mercury, there is a legacy of m
'/>"/>

Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Gene against bacterial attack unravelled
2. Predatory bacterial swarm uses rippling motion to reach prey
3. Nature study demonstrates that bacterial clotting depends on clustering
4. Shifts in soil bacterial populations linked to wetland restoration success
5. Caltech researchers get first 3-D glimpse of bacterial cell-wall architecture
6. Scientists present moving theory behind bacterial decision-making
7. Scientists build roach motel for nasty bugs of the bacterial variety
8. Bacterial biofilms as fossil makers
9. Winter brings flu, summer brings bacterial infections
10. Computation and genomics data drive bacterial research into new golden age
11. New research lights up chronic bacterial infection inside bone
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/10/2015)... Research and Markets ( http://www.researchandmarkets.com/research/cjk4gb/security ) has ... - NEC" report to their offering. ... to supply a range of IT security management and ... on the development of a Big Data and cloud ... Asia-Pacific region is a core ...
(Date:4/6/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... on the growing mobile commerce market, announced today ... MINIATURE, MULTI-PURPOSE ANTENNA METHOD AND SYSTEM FOR ... introduces a new revolutionary method and system to ... of miniature antenna modules for multiple purposes including ...
(Date:4/2/2015)... -- According to preliminary estimates Fingerprint Cards, ... than 125 MSEK. This exceeds the guidance provided by ... for Q1 2015 would be in line with the ... The operating result for the first quarter is estimated ... will as previously communicated be published on May 21. ...
Breaking Biology News(10 mins):NEC Security Competitive Profile 2015 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4Fingerprint Cards Revises Revenues for Q1 2015 2
... (January 9, 2013) -- A new study by NYU School ... gut bacterium Helicobacter pylori ( H. pylori ) isn,t ... and may even protect against stroke and some cancers. The findings, ... period of some 12 years, are published online, January 9, in ...
... its Education Committee travel award to attend the Biophysical ... in Philadelphia, February 2-26, 2013. The recipients of this ... fellows, are selected based on scientific merit. Each ... will receives a travel grant, and will be ...
... of overweight and obese Americans has increased, the amount ... decreased -- especially for patients with high blood pressure ... Medicine researchers. More than 145 million adult Americans ... the National Ambulatory Medical Care Survey for the years ...
Cached Biology News:Disappearing bacterium may protect against stroke 2Disappearing bacterium may protect against stroke 3Biophysical Society announces winners of 2013 Education Committee travel awards 2Biophysical Society announces winners of 2013 Education Committee travel awards 3Biophysical Society announces winners of 2013 Education Committee travel awards 4Biophysical Society announces winners of 2013 Education Committee travel awards 5Biophysical Society announces winners of 2013 Education Committee travel awards 6Weight counseling decreases despite rise in obesity 2Weight counseling decreases despite rise in obesity 3
(Date:4/16/2015)... April 16, 2015  In recognition of World Hemophilia Day, ... advocacy groups to illuminate more than 15 prominent landmarks red ... Boston,s Zakim Bridge and Prudential Tower, ... Mercedes-Benz Superdome and Denver,s ... evening of April 17, and coincide with hemophilia community events ...
(Date:4/16/2015)... /CNW/ - Bioenterprise Corporation is pleased to announce that it ... Charlottetown , PEI.  Bioenterprise has established a 3-year ... for the commercialization of agricultural technologies and innovations. ... ADAPT.  They have been at the heart of agri-innovation ... Dave Smardon , President & CEO of Bioenterprise ...
(Date:4/16/2015)... 16, 2015  AnaptysBio, Inc., a leader in ... today announced the advancement of its first-in-class ... studies. The Company,s anti-IL-36R therapeutic antibody, called ... pustular psoriasis (GPP), an orphan systemic inflammatory ... wholly owned within AnaptysBio,s proprietary antibody pipeline ...
(Date:4/16/2015)... , April 16, 2015  EMD Serono today ... Darmstadt, Germany , appointed ... Head of Global Clinical Development.  Dr. Reicin brings ... experience in Oncology and Immunology. She is an ... served as a Vice President in various capacities ...
Breaking Biology Technology:Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 2Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 3Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 4Bioenterprise Corporation Expands into the Maritimes 2AnaptysBio Advances First-In-Class Anti-IL-36 Receptor Antibody Program To Treat Orphan Inflammatory Disease 2Alise Reicin Joins the Biopharmaceutical Business of Merck KGaA, Darmstadt, Germany as Head of Global Clinical Development 2Alise Reicin Joins the Biopharmaceutical Business of Merck KGaA, Darmstadt, Germany as Head of Global Clinical Development 3
... Accurate Measurement of Women,s Ovarian ... ... will be the first IVF center in the southeast to offer,the Repromedix ... woman,s egg supply by combining multiple factors,including the measurement of ovary-related hormones ...
... suit claims company insiders knowingly misrepresented the ... ... Hagens Berman Sobol Shapiro filed a,proposed class-action lawsuit on behalf ... executives,knowingly misrepresented the company and chief executive officer Gary A.,Reys, ...
... Eli Lilly and Company,strongly objects to implications in a ... suppressed results of negative clinical,trials., The story, based ... of,Medicine (NEJM), cited Prozac and Lilly as high-profile examples ... Not only was,the Times, story inaccurate when it comes ...
Cached Biology Technology:Georgia Reproductive Specialists is First in Southeast to Offer Pioneering Test of Women's Biological Clock 2Georgia Reproductive Specialists is First in Southeast to Offer Pioneering Test of Women's Biological Clock 3Hagens Berman Sobol Shapiro: Lawsuit Filed Against CellCyte Genetics Corporation 2Hagens Berman Sobol Shapiro: Lawsuit Filed Against CellCyte Genetics Corporation 3In response to a New England Journal of Medicine article published yesterday and subsequent media coverage, Eli Lilly and Company issued the following statement: 2In response to a New England Journal of Medicine article published yesterday and subsequent media coverage, Eli Lilly and Company issued the following statement: 3In response to a New England Journal of Medicine article published yesterday and subsequent media coverage, Eli Lilly and Company issued the following statement: 4
Sterile detoxified 10% bovine serum albumin (BSA) in Iscoves MDM. This BSA has been selected to support the optimal colony growth of human hematopoietic progenitor cells in methylcellulose-based medi...
... it uses a deep-UV deuterium bulb, which provides ... a shutter (controlled via a TTL signal or ... DH-2000 Deuterium Tungsten Halogen Light Source combines the ... sources in a single optical path. The combined-spectrum ...
... handy dispensers save space and organize ... other garb. They are the perfect ... used in labs, processing and manufacturing. ... and the particles they attract. Open-slot ...
... latest generation of the popular precision ... the iontophoresis of neural transport tracers ... tritiated amino acids into neural tissue, ... may also be used to make ...
Biology Products: