Navigation Links
Microorganisms in toxic groundwater fine-tuned to survive
Date:3/29/2010

OAK RIDGE, Tenn., March 29 2010 -- Microorganisms can indeed live in extreme environments, but the ones that do are highly adapted to survive and little else, according to a collaboration that includes Department of Energy's Oak Ridge National Laboratory and Joint Genome Institute (JGI) and the University of Oklahoma.

The metagenomic study of a "stressed" microbial community in groundwater near a former waste disposal pond site on DOE's Oak Ridge Reservation (ORR) revealed microbes with an overabundance of genes involved in DNA recombination and repair and other defense mechanisms for dealing with contaminants and other environmental stresses.

The studies, said ORNL researcher David Watson, are ultimately aimed at developing biologically based methods for reducing the level of the contaminants in the groundwater, which at the ORR site includes nitrates, solvents and heavy metals, including uranium.

"We are looking to better understand the evolution of microbes in the groundwater plume," Watson said. "The microbes that can break down nitrate into nitrogen can have a long-term benefit toward attenuating the plume."

Watson added that researchers particularly want to better understand the genetic makeup of microbes that can metabolize oxidized forms of uranium into a form that is only slightly soluble and thus easier to precipitate and remove from the groundwater environment.

ORNL's Watson was joined in the study by the University of Oklahoma's Jizhong Zhou and Christopher Hemme; Joint Genome Institute Director Eddy Rubin; and a team that included researchers from ORNL's Environmental Sciences Division, the University of Oklahoma's Institute for Environmental Genomics, Montana State University, Michigan State University and Lawrence Berkeley National Laboratory.

They found that the naturally occurring populations of microbes in the polluted groundwater--which consisted of only a few cell types-- had "very simple
'/>"/>

Contact: Bill Cabage
cabagewh@ornl.gov
865-574-4399
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. K-State host to workshop on rapid methods to detect microorganisms in food
2. Scientists work to plug microorganisms into the energy grid
3. OU researchers isolate microorganisms that convert hydrocarbons to natural gas
4. Can microorganisms be a solution to the worlds energy problems?
5. Database shows effects of acid rain on microorganisms in Adirondack Lakes
6. New text highlights role of microorganisms in alternative energy development
7. Fecal microorganisms inhabit sandy beaches of Florida
8. Research team finds that microorganisms filter nitrogen from small streams
9. Leading toxicologists highlight advances to safeguard public health
10. Discovery of algaes toxic hunting habits could help curb fish kills
11. Toxicants detected in Asian monkey hair may warn of environmental threats to people and wildlife
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... available in German . ... PCFs proteins are fixated in a way so as ... the HZB and Fudan University researchers are planning on ... materials. Their findings are being published today in the ... Proteins are sensitive molecules. Everyone knows that at ...
(Date:8/22/2014)... a multifunctional enzyme that localizes to ... and cholesterol-synthesizing activities. DHCR24 overexpression confers ... β deposition. Dr. Xiuli Lu and ... constructed two recombinant adenoviruses (Ad-rSYN1-DHCR24-myc and ... in neuronal cells. They also found ...
(Date:8/21/2014)... team of scientists including researchers from the University of Georgia ... as canolain the journal Science . Their discovery paves ... used widely in farming and industry. , Canola is ... the winter crop is increasingly cultivated in Georgia. Canola oil ... of saturated fat and rich supply of omega-3 fatty acids, ...
Breaking Biology News(10 mins):Proteins: New class of materials discovered 2Canola genome sequence reveals evolutionary 'love triangle' 2
... "world summit" will bring together internationally renowned scientists from 12 ... India to address ancient microscopic fossils, from July 27 ... together the world,s best scientists in the field of ancient ... of the UCLA Institute of Geophysics and Planetary Physics, Center ...
... A University of Washington study of top-selling laundry products ... different chemicals. All six products tested gave off at ... federal laws, but none of those chemicals was listed ... in this topic because people were telling me that ...
... month remaining before the Beijing Olympics, Chinese officials have introduced ... Games. A new tool has been installed in the capital ... these efforts. Poor air quality could pose problems for ... outdoors in endurance sports, such as cycling and marathons. ...
Cached Biology News:UCLA 'world summit' to explore ancient life on Earth, and beyond 2Toxic chemicals found in common scented laundry products, air fresheners 2Toxic chemicals found in common scented laundry products, air fresheners 3Air quality forecasts for China 2
(Date:8/21/2014)... Aug. 21, 2014  Decision Resources Group finds ... and Mexico ... several newly approved agents, the anticipated label extension ... the launch of emerging biologics will substantially increase ... the emerging IL-5 inhibitors will introduce a new dynamic ...
(Date:8/21/2014)... KONG , Aug. 21, 2014  China Cord Blood ... announced its plan to release financial results for the ... 28, 2014, after market close in the US.  ... at 8:00 a.m. ET on Friday, August 29, 2014 ... overview of the Company,s recent developments, followed by a ...
(Date:8/21/2014)... Ontotext S4 , The Self Service ... Now the same enterprise hardened text mining, Linked ... data is available to start-ups and mid-size businesses at ... that do not have resources to evaluate and prototype ... since there is no need for on premise hardware ...
(Date:8/21/2014)... August 21, 2014 On Wednesday of last ... to use Redox Signaling molecules, became available for purchase in ... , "The way that RENU 28 works is, if you ... down of the rate of cellular renewal within your body. ... increasing of that rate of cellular renewal. What RENU 28 ...
Breaking Biology Technology:Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3China Cord Blood Corporation to Report First Quarter of Fiscal 2015 Financial Results 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4RENU 28 Skin Care Now Available in Australia and New Zealand 2
... up most of the tab for damage caused by invasive ... other goods imported from countries into the United States every ... financial damage of importing foreign insects into the nation and ... the journal PLoS One today. ,The ...
... Mass High Tech has selected Greenberg Traurig ... its 2011 All-Stars Award, one that recognizes 15 driven ... Camacho will be recognized for her wide ... sciences sector.  As a patent attorney, she represents pharmaceutical ...
... 9, 2011 PharmaVentures Limited, experts ... that they have been engaged by leading drug ... for an established full service CMC (chemistry, manufacturing ... The engagement will utilise PharmaVentures, asset divestment expertise ...
Cached Biology Technology:Homeowners, taxpayers pay billions to fight invasive pests 2Homeowners, taxpayers pay billions to fight invasive pests 3Greenberg Traurig Shareholder Jennifer A. Camacho Selected to Receive Mass High Tech's 2011 All-Stars Award 2