Navigation Links
Microscope reveals how bacteria 'breathe' toxic metals
Date:3/16/2009

COLUMBUS, Ohio -- Researchers are studying some common soil bacteria that "inhale" toxic metals and "exhale" them in a non-toxic form.

The bacteria might one day be used to clean up toxic chemicals left over from nuclear weapons production decades ago.

Using a unique combination of microscopes, researchers at Ohio State University and their colleagues were able to glimpse how the Shewanella oneidensis bacterium breaks down metal to chemically extract oxygen.

The study, published online this week in the journal Applied and Environmental Microbiology, provides the first evidence that Shewanella maneuvers proteins within the bacterial cell into its outer membrane to contact metal directly. The proteins then bond with metal oxides, which the bacteria utilize the same way we do oxygen.

The process is called respiration, and it's how living organisms make energy, explained Brian Lower, assistant professor in the School of Environment and Natural Resources at Ohio State. We use the oxygen we breathe to release energy from our food. But in nature, bacteria don't always have access to oxygen.

"Whether the bacteria are buried in the soil or underwater, they can rely on metals to get the energy they need," Lower said. "It's an ancient form of respiration."

"This kind of respiration is fascinating from an evolutionary standpoint, but we're also interested in how we can use the bacteria to remediate nasty compounds such as uranium, technetium, and chromium."

The last two are byproducts of plutonium. The United States Department of Energy is sponsoring the work in order to uncover new methods for treating waste from nuclear weapons production in the 1960s and '70s.

Shewanella is naturally present in the soil, and can in fact be found at nuclear waste sites such as the Hanford site in the state of Washington, Lower explained.

With better knowledge of the bacterium's abilities, scientis
'/>"/>

Contact: Brian Lower
Lower.30@osu.edu
614-247-1676
Ohio State University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Underwater microscope helps prevent shellfish poisoning along Gulf Coast of Texas
2. Oosight microscope enables embryonic stem cell breakthrough
3. Study of protein structures reveals key events in evolutionary history
4. Analysis of fresh strawberries reveals consumer preferences
5. Reversing ecology reveals ancient environments
6. Polar research reveals new evidence of global environmental change
7. Early whales gave birth on land, fossil find reveals
8. Comparative genomics reveals molecular evolution of Q fever pathogen
9. Landmark national study reveals significance of green practices in attractions industry
10. Male crickets with bigger heads are better fighters, study reveals, echoing ancient Chinese text
11. Study reveals effects of unconscious exposure to advertisements
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Microscope reveals how bacteria 'breathe' toxic metals
(Date:8/27/2014)... bears, giant ground sloths, saber-toothed cats and American camels ... at the end of the Pleistocene period. The cause ... scientists who, until recently, could only speculate as to ... Barbara,s James Kennett, professor emeritus in the Department of ... played a major role in the extinction. Their hypothesis ...
(Date:8/27/2014)... 27, 2014 Reportlinker.com announces that a ... catalogue: Law Enforcement Biometrics Market in ... About Biometrics Biometrics is a ... basis of their physical or behavioral patterns. It ... traits such as fingerprints, face recognition, DNA, palm ...
(Date:8/27/2014)... be getting effective doses of the HIV drug maraviroc, ... dosing studies, completed before the drug was licensed in ... that is key to removing maraviroc from the body. ... of the protein including nearly half of African-Americans ... compared to those who lack the protein even when ...
Breaking Biology News(10 mins):Nanodiamonds are forever 2Nanodiamonds are forever 3Law Enforcement Biometrics Market in North America 2014-2018 2Law Enforcement Biometrics Market in North America 2014-2018 3Law Enforcement Biometrics Market in North America 2014-2018 4Law Enforcement Biometrics Market in North America 2014-2018 5Dosage of HIV drug may be ineffective for half of African-Americans 2
... with invasive species such as snails and slugs, including ... of the local horticultural industry, has been investigated and ... It is the first documented baseline compilation of ... with the horticultural industry throughout the Hawaiian Islands. ...
... in movies or while viewing your favorite sitcom; a scene ... little woozy which leads to a fainting spell. It may ... according to a study in the May/June 2008 issue of ... clinical, peer-reviewed journal, this type of reaction, in real life ...
... University of Toronto, Faculty of Medicine, Toronto, Canada, have ... a metabolic link that can explain, in part, the ... density and reduced susceptibility to fractures. This study appears ... Medicine . Circulating adiponectin levels are significantly lower in ...
Cached Biology News:UH Manoa researchers release results of statewide survey of snail, slug invasions in Hawai'i 2Lightheadedness at the dentist could prove serious 2Adiponectin is a metabolic link between obesity and bone mineral density 2
(Date:8/27/2014)... OR (PRWEB) August 27, 2014 According ... “Consolidation continues to reshape the look and feel of ... Consumer demand for higher-quality ingredients will push for more ... American market have experienced strong market growth in the ... attributes in their food and cosmetics to fit a ...
(Date:8/27/2014)... (PRWEB) August 27, 2014 WriteResult, LLC ... – has once again shown superiority when it comes ... by completing the ePRO portion of their most recent ... The Japan-based pharma chose WriteResult’s digital writing platform to ... – the first to complete drew data from a ...
(Date:8/26/2014)... the thinnest-possible semiconductor, a new class of nanoscale ... , The University of Washington researchers have demonstrated ... be connected in an atomically seamless fashion known ... basis for next-generation flexible and transparent computing, better ... "Heterojunctions are fundamental elements of electronic and photonic ...
(Date:8/26/2014)... San Diego, CA, and Bellingham, WA (PRWEB) August ... nanoscience and optical engineering, visions for next-generation wearable ... Light 2015 among numerous highlights at this year’s ... in the San Diego, California, Convention Center. More ... suppliers last week attended conferences, courses, an exhibition, ...
Breaking Biology Technology:Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 2Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 3A Perfect Record: WriteResult Maintains a 100% On-Time ePRO Record with Latest Irritable Bowel (IBS) Study Data Lock 2Scientists craft atomically seamless, thinnest-possible semiconductor junctions 2Brighter, Busier SPIE Optics + Photonics Draws International Crowd to San Diego 2Brighter, Busier SPIE Optics + Photonics Draws International Crowd to San Diego 3Brighter, Busier SPIE Optics + Photonics Draws International Crowd to San Diego 4
... Study Also Shows 82% of Women Do Not ... RED BANK, N.J., Sept. 23 According to a ... (NWHRC), the,nation,s leading source for women,s health information, women ... less,likely to be up to date with preventive screenings, ...
... Sept. 23 Though the new USP 797,regulations, ... impact of following the new minimums has the ... warns Steven Wieczorek,Supervisor, Environmental Sciences, Microtest, Inc., ... of USP 797,establishes bi-annual environmental sampling and testing ...
... Sept. 23 Environmental,Tectonics Corporation,s (Amex: ETC ... the sale and placement of two BARA-MED(R) XD,Monoplace ... Facility was established in Corpus Christi, Texas, in ... medical center in the region. The,facility offers South ...
Cached Biology Technology:Video: Women Unsatisfied With Body and Breasts, Less Likely to Comply With Screenings, Including Mammography 2Video: Women Unsatisfied With Body and Breasts, Less Likely to Comply With Screenings, Including Mammography 3New USP 797 Regulations May Create New Hazards for Compounding Pharmacy Directors 2New USP 797 Regulations May Create New Hazards for Compounding Pharmacy Directors 3Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 2Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 3
... Jouan RC Standard MB (For small quantities ... biology samples) of vacuum concentrator/centrifugal evaporator systems ... and biochemistry for rapid and safe concentration ... be expanded with pumps, different of cold ...
Monoclonal mouse antibody for immunihistology, clone AD12, Isotype IgG 1, purified, specific for rat pyruvatekinase type L, no cross-reactivities with other pyruvate kinase isoenzymes have been obser...
For testing the AQUA technique on your MS instruments....
A robust formulation of Taq Polymerase supplied with a 10X colored reaction buffer which allows Direct Gel-Loading...
Biology Products: