News tagged with model organism

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Mutations: When benefits level off

Beneficial mutations within a bacterial population accumulate during evolution, but performance tends to reach a plateau. Consequently, theoretical evolutionary models need to take into account a "braking effect" in expected ...

dateJun 08, 2011 in Evolution
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Microbes that immobilize

Using a model organism isolated from a uranium seep of the Columbia River, scientists recently quantified how extracellular polymeric substances (EPS) in subsurface environments can be used to immobilize heavy metal and radionuclide ...

dateJun 02, 2011 in Environment
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As the worm turns, its secrets are revealed

An international team of scientists, led by researchers at the University of California, San Diego School of Medicine, have developed a new method for discerning the functions of previously uncharacterized genes and placing ...

dateApr 28, 2011 in Biotechnology
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Mutant microbes test radiation resistance

Early Earth lacked an ozone layer to act as a shield against high-energy solar radiation, but microbes flourished by adapting to or finding other forms of protection from the higher ultraviolet radiation levels. Now researchers ...

dateMar 24, 2011 in Space Exploration
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