News tagged with anaerobic oxidation
New study sheds light on evolutionary origin of oxygen-based cellular respiration
Researchers at the RIKEN SPring-8 Center in Harima, Japan, have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our ...
Jan 22, 2012 |
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Bacteria forge nitrogen from nitric oxide: Scientists unravel key pathway in the nitrogen cycle
The anaerobic oxidation of ammonia (anammox) is an important pathway in the nitrogen cycle that was only discovered in the 1980s. Currently, scientists estimate that about 50 percent of the nitrogen in the atmosphere is forged ...
Oct 05, 2011 |
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Microbes may consume far more oil-spill waste than earlier thought
Microbes living at the bottom of the Gulf of Mexico may consume far more of the gaseous waste from the Deepwater Horizon oil spill than previously thought, according to research carried out within 100 miles of the spill site.
Space & Earth / Earth Sciences
Oct 20, 2010 |
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Denitrification, its importance once diluted, may be back on top, study says
After more than a decade of inquiry, a Princeton-led team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.
Sep 02, 2009 |
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Search results for anaerobic oxidation
New study queries interactions of metal-reducing bacteria with plutonium oxide
(PhysOrg.com) -- Recent work by scientists at Pacific Northwest National Laboratory has shed new light on the perplexing environmental chemistry of plutonium. They demonstrated that under anaerobic, or oxygen-free, ...
Mar 19, 2012 |
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Engineers develop more effective MRI contrast agent for cancer detection
Many imaging technologies and their contrast agents — chemicals used during scans to help detect tumors and other problems — involve exposure to radiation or heavy metals, which present potential health risks to ...
Nanotechnology / Bio & Medicine
Dec 23, 2011 |
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Setting the stage for life: Scientists make key discovery about the atmosphere of early Earth
Scientists in the New York Center for Astrobiology at Rensselaer Polytechnic Institute have used the oldest minerals on Earth to reconstruct the atmospheric conditions present on Earth very soon after its birth. The findings, ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Pee power: Urine-loving bug churns out space fuel
Scientists on Sunday said they had gained insights into a remarkable bacterium that lives without oxygen and transforms ammonium, the ingredient of urine, into hydrazine, a rocket fuel.
Oct 02, 2011 |
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Breathing new life into Earth: New research shows evidence of early oxygen on our planet
Today, oxygen takes up a hefty portion of Earth's atmosphere: Life-sustaining O2 molecules make up 21 percent of the air we breathe. However, very early in Earth's history, O2 was a rare — if not complet ...
Space & Earth / Earth Sciences
Aug 16, 2011 |
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Underground waters resist forced depollution
An experiment conducted at the EPFL Environmental Biotechnology Laboratory has demonstrated the role played by micro-organisms in the degradation – without oxygen – of a very common pollutant: vinyl ...
May 27, 2011 |
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Seeking life's imprint in shifting desert sand
A group of scientists are hunched over, their eyes intently scanning the jumble of rocks on the ground. Every now and then, someone picks one up for closer inspection, turning it over and over again in their ...
Space & Earth / Earth Sciences
May 02, 2011 |
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Cold case: Siberian hot springs reveal ancient ecology (w/ video)
(PhysOrg.com) -- Exotic bacteria that do not rely on oxygen may have played an important role in determining the composition of Earth's early atmosphere, according to a theory that UChicago researcher Albert ...
Space & Earth / Earth Sciences
Apr 26, 2011 |
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Greenhouse gas-producing enzyme may yield insights into earliest oxygen-breathing ancestor evolution
Every year, nitrogen-metabolizing bacteria in the soil and seas churn out more than ten billion kilograms of nitrous oxide (N2O) gas as they respire in these oxygen-deficient environments.
Mar 07, 2011 |
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Study finds children with autism have mitochondrial dysfunction
Children with autism are far more likely to have deficits in their ability to produce cellular energy than are typically developing children, a new study by researchers at UC Davis has found. The study, published today in ...
Medicine & Health / Diseases, Conditions, Syndromes
Nov 30, 2010 |
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List of search results for anaerobic oxidation
