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Shewanella in Biological News

Microscope reveals how bacteria 'breathe' toxic metals

... and their colleagues were able to glimpse how the shewanella oneidensis bacterium breaks down metal to chemical...al Microbiology , provides the first evidence that shewanella maneuvers proteins within the bacterial cell into ...clear weapons production in the 1960s and '70s. shewanella is naturally present in the soil, and can in fact ...

PNNL researchers earn top honors at Supercomputing conference

.... Browsing through all the proteins in various shewanella bacterial species, the team noticed more proteins ...g?" said Oehmen. As it happens, many species of shewanella have the ability to transfer electrons to an elect...or similar proteins out of 42,000 proteins from 10 shewanella species. After rounding up about 550 possible iron...

U of Minnesota researchers discover key for converting waste to electricity

...e, Bond said. Scientists have known for years that shewanella produce electricity. Now we know how they do it. The discovery means shewanella can produce more power simply by increased ribofla... produce electricity" In nature, bacteria such as shewanella need to access and dissolve metals such as iron. H...

Nanotube-producing bacteria show manufacturing promise

...ral researcher Bongyoung Yoo, found the bacterium shewanella facilitates the formation of arsenic-sulfide nano...n a process that is not yet fully understood, the shewanella bacterium secretes polysacarides that seem to pro...to future investigation, he said. Each species of shewanella might have individual implications for manufactur...

Particle size matters to bacteria ability to immobilize heavy metals

... One of the most common bacteria in the Earth, shewanella oneidensis MR-1, uses oxygen as an energy source for respiration. But in the absence of oxygen, shewanella uses (oxy)hydroxide minerals. These metal particle...o have adsorbed heavy metals on them. As a result, shewanella influence the mobility and bioavailability of iron...

Biofuel cells without the bio cells

...ricity-shuttling process taking place sans cells, in purified proteins removed from the outer membrane of the versatile, metal-altering soil bacterium shewanella oneidensis. Reporting in the current advance online edition of the Journal of the American Chemical Society, they suggest that proteins rendered porta...

USC, Rice to develop bacteria-powered fuel cells

... the team's efforts to understand how the bacteria shewanella oneidensis attach to and interact with anode surfa...espiratory metabolism in oxygen-poor environments. shewanella oneidensis, one such bacterium, uses metals instea...used the technique to examine how the cigar-shaped shewanella attach themselves to crystalline surfaces. The res...

ORNL leading effort to help harness power of Shewanella

...ur goals are to gain a better understanding of the shewanella mechanisms for metal contaminants reduction and ot...known as "An Integrated Knowledge Resource for the shewanella Federation," will play a key role in helping resea...nding of the response systems in organisms such as shewanella and how they respond to changes in their environme...

Study uncovers bacteria's worst enemy

... being evaluated for radionuclide bioremediation, Deinococcus radiodurans and Pseudomonas putida, along with the toxicity of plutonium on the bacteria shewanella putrefaciens. In addition to Neu, the bacteria bioremediation study team includes Christy Ruggiero and Hakim Boukhalfa of the Chemistry Division, a...

Fleshing out the genome

...es the new annotation method to a strain of the metal-detoxifying bacterium shewanella oneidensis. "In a lot of cases," said James K. Fredrickson, a co-author ... play." Before this study, nearly 40 percent of the genetic sequences in shewanella oneidensis--of key interest to DOE for its potential in nuclear and heavy m...
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