Diatom genome reveals key role in biosphere's carbon cycle
... ever suspected," Armbrust says. A urea cycle is a nitrogen waste pathway found in animals and has never befor... enzymes that may help to reduce its dependence on nitrogen from the surrounding waters. The genome work also shed additional light on how this diatom species ...National Science Foundation awards $2 million grant to UC Riverside
...acted by development." Allen says that most of the nitrogen is the result of automobile emissions. Some of thi...s converted to nitrate or nitric acid, the form of nitrogen (known as N) that is used by plants as fertilizer. "California has been subject to weed invasions s...A treatment, not a cure: Calcium silicate neutralizes an acidic stream
...combusted, fossil fuels release sulfur dioxide and nitrogen oxide, the precursors to acid precipitation, into the atmosphere. Persistent exposure to these pollutants, which return to Earth in rain, snow, sleet, hail and fog, can compromise the health of aquatic ecosystems. In a recent Restoration Ecology pap...Acoustics meeting in San Diego
... nitrogen, in which a higher-than-normal amount of nitrogen gas is dissolved in their bodies. Now, Lawrence ...he supersaturation levels can result in very large nitrogen bubbles, which could have potentially deleterious biological effects. Crum will present preliminary...Identifying the path to infection
...to about minus 300 degrees Fahrenheit using liquid nitrogen and placed in an electron microscope. This device bombards the sample with high-energy electrons, which scatter off the atoms in the crystal. A lens inside the microscope focuses these electrons, forming a high-resolution image, which is recorded usi...Story tips from the Department of Energy's Oak Ridge National Laboratory
...ture automobiles and trucks may be equipped with a nitrogen oxide (NOx) sensor that helps reduce emissions by ...can help reduce the impact of increasing levels of nitrogen in rainfall that can cause algal blooms and degradation of drinking water. Combining computer simula...A $2 Million NSF grant brings technology and biology together at UC Riverside
...d a $2 million grant to study the impact of excess nitrogen from air pollution on the plant world. http://www.newsroom.ucr.edu/cgi-bin/display.cgi?id=890 Now Professor Mike Allen is leading a team to use technology to monitor agricultural impacts on the environment. "Our project ...Revisiting the vertebrate invasion of the land
... to water at hatching. With regard to excretory nitrogen metabolism, modern tropical air-breathing fishes exhibit a variety of strategies to survive on land, and they represent a spectrum of specimens through which we may examine various biochemical adaptations that would have facilitated the invasion of t...Science to restore the nation's ecosystems
...0 because ground water is an important pathway for nitrogen to reach the Bay and its median age is 10 years in shallow aquifers in the watershed. While these factors will make meeting the 2010 water-quality criteria in Chesapeake Bay very difficult, the information is being used to better plan actions that ma...Researchers discover direct link between agricultural runoff and massive algal blooms in the sea
...rations, which in many regions pour tons of excess nitrogen and other nutrients into rivers that eventually flow into coastal waters. However, some agricultural industry groups contend that there is not enough evidence to link farm runoff to red tides or dead zones. Satellite imagery To assess the impact of...Birds, butterflies, bacteria same law of biology appears to apply
...that, among other things, provides the majority of nitrogen needed by the plants we eat," Horner-Devine says. ...y in terms of how it buffers Narragansett Bay from nitrogen pollution than a similar looking marsh in San Francisco Bay." Both studies received funding from t...U. of Colorado research team discovers life in Rock Glacier
...e believed to be a result of microbes metabolizing nitrogen within the glacier, said CU-Boulder graduate stude... have been shown to metabolize elements like iron, nitrogen and sulfur, appear to require water in order to live, grow and reproduce. Previously at the Niwot R...Research team discovers first evidence of microbes living in a rock glacier
...e believed to be a result of microbes metabolizing nitrogen within the glacier, said CU-Boulder graduate stude... have been shown to metabolize elements like iron, nitrogen and sulfur, appear to require water in order to live, grow and reproduce. Previously at the Niwot R...Microbe's genome reveals insights into ocean ecology
...stigating how microbes control carbon, sulfur, and nitrogen cycling on a global scale." The project was led by UGA's Moran and by TIGR scientist Naomi Ward, who is the paper's senior author. Other collaborators included: Ron Kiene of the University of South Alabama; Gary King of the University of Maine...Violent ocean motion no magic potion for reefs
...closely match the signatures of natural sources of nitrogen or of land-based pollution sources. This information can help clarify the most likely cause or causes of the HABs....Ocean colour satellites guide research ship through South Pacific's watery desert
..., water and phytoplankton samples frozen in liquid nitrogen have been distributed for more detailed study by international laboratories, in particular to carry out an intercomparison exercise regarding the analysis of the various phytoplanktonic pigments. From Tahiti to Chile Setting off from Tahiti in Fre...Urban ecology study witnessing the birth of a 'designer ecosystem'
... good example of one of these is a big increase in nitrogen input, which comes about because of the burning of fossil fuels in cars. Driving around fertilizes the ecosystem. "Is fertilizing a good thing? One of the things that we are going to do in the next phase is to investigate the consequences," she said....Gene sequencing explains bioremediation 'bug'
...e when the genome sequence showed genes for fixing nitrogen and remnants of genes for fixing carbon dioxide, Zinder notes. "It once must have been a much more independent organism," he observes. Another biochemical trick for the deceptively simple and unremarkable looking bacterium, Zinder says, is that "it h...Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
...cial sample vials and immediately frozen in liquid nitrogen canisters to preserve the microbial community. In springs where there was no sediment, Spear collected samples of planktonic organisms by hanging a glass slide in the water and allowing the microbes to accumulate. "Bacteria are just like us. They ......al surface adsorbs and removes carbon monoxide and nitrogen oxide gases in car exhaust converters. Buoyed by this success, the team trained the instrument on the secret lives of sea salt aerosols. Conventional spectroscopy experiments have revealed that there are just as many negative ions as positive ions on...