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:8/27/2014)... the brain of mice, scientists have altered the ... by Howard Hughes Medical Institute investigator Susumu Tonegawa ... that the connections between the part of the ... and the part of the brain that stores ... , Altering those connections can transform a ...
(Date:8/27/2014)... Ga. An invasive grass species frequently found in ... who then feed on American toads, a new University ... was accidentally introduced to the U.S. in the early ... and has spread to more than a dozen states ... found along roads and in forests, it can survive ...
(Date:8/27/2014)... CITY, Aug. 27, 2014 University of Utah biologist ... native Turkey, has won that nation,s highest science prize, ... Science. , Sekercioglu is among five researchers picked for ... Technical Research Council of Turkey. Three researchers won the ... the Special Award, which is equivalent to the Science ...
Breaking Biology News(10 mins):Researchers change the emotional association of memories 2Researchers change the emotional association of memories 3Researchers change the emotional association of memories 4More wolf spiders feasting on American toads due to invasive grass, UGA study shows 2More wolf spiders feasting on American toads due to invasive grass, UGA study shows 3University of Utah biologist wins Turkey's top science prize 2
... a switch in cells that may help to kill tumors ... effectively treated by a combination of heat and an anti-cancer ... the enigmatic ability of heat to switch off essential survival ... used, the underlying principles are still unclear. In a ...
... and windy conditions on Black Saturday combined with structures in ... wind flowing through the air - which likely affected fire ... to produce such detailed, high-resolution simulations of weather patterns on ... warning systems. The work was led by Dr Todd ...
... evolution and function of jaws, University of Notre ... His integrative research program investigates major adaptive and ... development and across higher-level groups. In mammals, the ... chewing complex in food procurement and processing has ...
Cached Biology News:Unusual weather events identified during the Black Saturday bushfires 2Notre Dame researcher is shedding light on how jaws evolve 2
(Date:8/26/2014)... 2014 The global market for molecular ... 2020, according to a new study by Grand View ... and the subsequent introduction of advanced cancer diagnostic technologies ... over the next six years. Moreover, the growing global ... cancer, coupled with disease triggering lifestyle habits such as ...
(Date:8/26/2014)... August 26, 2014 Genedata, a ... discovery and life science research, today announced the ... will be held in Asia, Europe, and North ... pharmaceutical companies and leading research organizations will gather ... practices, case studies, and upcoming challenges in all ...
(Date:8/26/2014)... , Aug. 26, 2014   Loveland Products, ... provider of high-performance crop input products and proprietary ... that the company has acquired a controlling interest ... agricultural biotechnology company delivering biochemical-based products for efficient ... Loveland Products, fastest growing plant nutrition brands, Accomplish ...
(Date:8/26/2014)... , Aug. 26, 2014  That,s Nice LLC, a ... today announced the formation of a new dedicated team ... The expanded team will combine current and new staff ... That,s Nice. Guy Tiene ... lead the team. Tiene was previously Director of Marketing ...
Breaking Biology Technology:World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 2World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 3World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 4World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 5World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 6Thought Leaders to Explore Innovations in SPR & Combination Screening at Genedata Screener User Group Meetings 2Thought Leaders to Explore Innovations in SPR & Combination Screening at Genedata Screener User Group Meetings 3Agrium, through Loveland Products, Acquires a Controlling Interest in Agricultural Biotechnology Company Agricen 2Agrium, through Loveland Products, Acquires a Controlling Interest in Agricultural Biotechnology Company Agricen 3Agrium, through Loveland Products, Acquires a Controlling Interest in Agricultural Biotechnology Company Agricen 4That's Nice Announces Expanded Offering For Strategic Content And Public Relations 2That's Nice Announces Expanded Offering For Strategic Content And Public Relations 3
... Milwaukee Merge eFilm will acquire ... software line in a $6 million cash deal announced ... Merge Technologies Incorporated, expects to close the deal with ... software, used by radiologists and other specialty physicians, includes ...
... are into the home stretch of the year with just December ... market, there are in reality about two weeks left in the ... (as far as IPOs go) by the middle of December. New ... ,What seemed like a promising and valiant biotech IPO market has ...
... in talks with Australian banks , Brookfield, Wis. ... three major Australian banks Commonwealth Bank of Australia, National ... Vipro check processing system. If negotiations are completed successfully, the ... all processing operations managed by Fiserv. , Herrera to join ...
Cached Biology Technology:Midwest life-science company Perrigo globalizes under the radar 2Midwest life-science company Perrigo globalizes under the radar 3Midwest life-science company Perrigo globalizes under the radar 4Midwest life-science company Perrigo globalizes under the radar 5
... boxes are ideal for use in refrigerators, freezers, or ... Four vibrant colors allow for color coding to project, ... nitrogen drainage or promote cool air circulation. Supplied with ... 100 tubes. Box dimensions: 13 x 13 ...
RABBIT ANTI BACTERIAL HISTIDASE...
REGULATED IN DEVELOPMENT AND DNA DAMAGE RESPONSES 1,HIF-1 responsive RTP801...
Homo sapiens HCLS1 associated protein X-1 Antigen: Recombinant Protein...
Biology Products: