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Latest Archaea Stories

2012-12-14 12:19:49

Insights from Characterizing Extinct Human Gut Microbiomes A University of Oklahoma-led study has demonstrated that ancient DNA can be used to understand ancient human microbiomes.  The microbiomes from ancient people have broad reaching implications for understanding recent changes to human health, such as what good bacteria might have been lost as a result of our current abundant use of antibiotics and aseptic practices. Cecil M. Lewis Jr., professor of anthropology in the OU...

2012-12-13 12:36:43

Fecal samples from archeological sites reveal evolution of human gut microbes Extinct microbes in fecal samples from archaeological sites across the world resemble those found in present-day rural African communities more than they resemble the microbes found in the gut of cosmopolitan US adults, according to research published December 12 in the open access journal PLOS ONE by Cecil Lewis and colleagues from the University of Oklahoma. The researchers analyzed 1400-8000-year-old fecal...

Fracking Sites Are Home To Microbe Populations
2012-12-06 07:09:21

Lee Rannals for redOrbit.com - Your Universe Online Researchers making a genetic analysis of microbes living at a fracking site have uncovered some surprises. The scientists reported that they found very few genetic biomarkers for archaea, a domain of single-celled species found in high-salt environments and hot springs. Instead, they found many more for species that derive from bacteria. The team also reported that they found the populations of microbes changed dramatically over a...

Mystery Of Marine Methane Oxidation Unraveled
2012-11-12 13:27:20

Max-Planck-Gesellschaft Researchers uncover how microorganisms on the ocean floor protect the atmosphere against methane Microbiologists and geochemists from the Max Planck Institute for Marine Microbiology, along with their colleagues from Vienna and Mainz, show that marine methane oxidation coupled to sulfate respiration can be performed by a single microorganism, a member of the ancient kingdom of the Archaea, and does not need to be carried out in collaboration with a bacterium, as...

Methane Consuming Microorganisms Have Strange Diet
2012-11-06 13:06:13

Max-Planck-Gesellschaft Methane supplies the energy for cell metabolism, but is not the carbon source Methane is formed under the absence of oxygen by natural biological and physical processes, e.g. in the sea floor. It is a much more powerful greenhouse gas than carbon dioxide. Thanks to the activity of microorganisms this gas is inactivated before it reaches the atmosphere and unfolds its harmful effects on Earth's climate. Researchers from Bremen have now proven that these...

Mars-Like Places On Earth Hint To Possible Life On Red Planet
2012-09-24 14:33:20

Lee Rannals for redOrbit.com — Your Universe Online Researchers set out to study some Mars-like places on Earth, giving new insights into rover data and conditions for life on the Red Planet. The team presented the findings of their trip to Earth's Martian-like environments during a press conference at the European Planetary Science Congress. For four years, they carried out field trips to Chott El Jerid, a salt pan in Tunisia, the Atacama desert in Chile, Rio Tinto in Southern...

2012-09-13 13:32:52

A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding a fourth major branch to the three that most scientists agree represent the fundamental domains of life. The new findings appear in the journal BMC Evolutionary Biology. The researchers used a relatively new method to peer into the distant past. Rather than comparing...

Microbial Life In Undersea Volcanoes Provide Exciting New Research Opportunities
2012-08-07 13:38:43

Brett Smith for redOrbit.com - Your Universe Online Although some have estimated a third of the Earth's biomass lives in our planet's rocks and sediments, little is known about these hard to reach organisms. A new report published in the Proceedings of the National Academy of Sciences (PNAS), with possibly wide reaching implications, looks to study one group of methane-producing microbes that live deep in the cracks of hot undersea volcanoes. Because of the alien nature of these...

Microbes Capable of Surviving Harsh, Mars-Like Conditions Discovered
2012-06-09 05:58:05

Soil samples obtained from South American volcanoes have revealed a smattering of different microbe types that have somehow managed to survive in extreme conditions, the University of Colorado-Boulder (CU-Boulder) announced in a June 8 press release. According to the university, the scientists behind the research discovered bacteria, fungi, and a different type of simple organism known as archaea living in conditions similar to Mars -- a landscape which they dub "some of the most...


Word of the Day
maffling
  • To stammer.
  • Present participle of maffle, to stammer.
  • A simpleton.
The word 'maffle' may come from a Dutch word meaning 'to move the jaws' or a French word meaning 'having large cheeks'.