In the environment, microbes often communicate with each other using small molecules. Ribosomally synthesized and posttranslationally modified peptides produced by microbes represent a class of metabolites that are ecologically ...
Cell & Microbiology
Jun 30, 2014
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Hexavalent chromium is a major environmental contaminant at several Department of Energy (DOE) sites as well as other sites around the world. Iron-reducing bacteria can convert the oxidized form of iron in clay minerals, ...
Materials Science
Jun 18, 2014
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Many bacterial species have genes called mraZ and mraW, which are located in a cluster of genes that regulate cell division and cell wall synthesis. Despite the prevalence of these two genes, very little is known about their ...
Cell & Microbiology
Jun 18, 2014
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(Phys.org) —In the global scheme of things, clouds are the small stuff. And clouds' inner workings are even smaller. Scientists at Pacific Northwest National Laboratory found that neglecting the small stuff has consequences ...
Earth Sciences
May 30, 2014
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Arctic clouds are widespread and play an important role in climate, but different models have produced widely varying predictions about the properties of these clouds. This study analyzes simulations of Arctic clouds by 11 ...
Earth Sciences
May 6, 2014
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The impacts of biogeochemical processes in the underworld beneath our feet are on massive scales. Thousands of microbial species dine on organic molecules, belching their leftovers back into the soil and upwards into the ...
Earth Sciences
May 1, 2014
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Uranium poses a serious risk of groundwater contamination at the Hanford Site. But most previous experimental studies addressing this important issue were performed over short-time periods, focusing on the uranium that is ...
Environment
Apr 11, 2014
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In a surprising turn, carbon dioxide goes from quickly bonding with to jumping off the surface of the layered clay kaolinite when the pressure increases beyond a critical value, according to scientists at Pacific Northwest ...
Environment
Mar 28, 2014
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(Phys.org) —Sulfate-reducing bacteria are common in oxygen-deprived habitats, and they can have harmful industrial and health effects as well as beneficial environmental effects. This study examines the biochemical pathways ...
Cell & Microbiology
Mar 20, 2014
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(Phys.org) —Ubiquitous but frustrating, lithium-ion batteries fade because the materials lose their structure in response to charging and discharging. This structural change is closely related to the formation of electron-rich ...
Nanomaterials
Mar 7, 2014
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