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| Ecology articles |
Tough enough for mars, but deinococcus is from earth
Results of a recent study titled "Deinococcus geothermalis: The Pool of Extreme Radiation Resistance Genes Shrinks," has been published in the Sept. 26 edition of PLoS ONE. The study headed by Michael J. Daly, Ph.D., associate professor at the Uniformed Services University of the Health Sciences' (USU), Department of Pathology, reports the whole-genome sequence of Deinococcus geothermalis, which is only the second for an extremely radiation- and desiccation-resistant bacterium.
Life-giving rocks from a depth of 250 km
If our planet did not have the ability to store oxygen in the deep reaches of its mantle there would probably be no life on its surface. This is the conclusion reached by scientists at the University of Bonn who have subjected the mineral majorite to close laboratory examination.
Carbon dioxide did not end the last ice age
Carbon dioxide did not cause the end of the last ice age, a new study in Science suggests, contrary to past inferences from ice core records.
Researchers locate mantle's spin transition zone, leading to clues about earths structure
By looking at the electronic spin state of iron in a lower-mantle mineral at high temperatures and pressures relevant to the conditions of the Earth's lower mantle, Lawrence Livermore National Laboratory researchers and colleagues have for the first time tracked down exactly where this occurs.
Microbes gain strength in space
Space flight has been shown to have a profound impact on human physiology as the body adapts to zero-gravity environments. Now, a new study led by researchers from ASU's Biodesign Institute has shown that the tiniest passengers flown in space – microbes – can be equally affected by space flight, making them more infectious pathogens.
Cave records provide clues to climate change
When Georgia Tech Assistant Professor Kim Cobb and graduate student Jud Partin wanted to understand the mechanisms that drove the abrupt climate change events that occurred thousands of years ago, they didn't drill for ice cores from the glaciers of Greenland or the icy plains of Antarctica, as is customary for paleoclimatolgists. Instead, they went underground.
Bacteria join ranks of lazy cheaters
Baseball had its steroids and Black Sox. Politics lived through Watergate. Wall Street has been riddled with insider trading scandals. And before we cast the first stone, who among us has never tried to get through an intersection on a yellow light?
In limiting life span, study finds booming bacteria innocent
Aging flies are simply crawling with bacteria—both inside and out—but their microbial infestations don't seem to hasten the insects toward death, according to a new study in the August issue of the journal Cell Metabolism, a publication of Cell Press. The findings suggest that the energy the flies expend to fight their burgeoning bugs comes without a longevity trade-off, the researchers said.
Geologist discovers martian mineral
A Queen's University researcher's surprising discovery – made first in his garage and later verified through field work – has resulted in the naming of a new mineral species that may exist on Mars, and has caught the attention of the NASA space program.
Flu virus trots globe during off season
The influenza A virus does not lie dormant during summer but migrates globally and mixes with other viral strains before returning to the Northern Hemisphere as a genetically different virus, according to biologists who say the finding settles a key debate on what the virus does during the summer off season when it is not infecting people.
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Geologists recover rocks yielding unprecedented insights into san andreas fault
For the first time, geologists have extracted intact rock samples from 2 miles beneath the surface of the San Andreas Fault, the infamous rupture that runs 800 miles along the length of California.
A tiny pinch from a 'z-ring' helps bacteria cells divide
In process that is shrouded in mystery, rod-shaped bacteria reproduce by splitting themselves in two. By applying advanced mathematics to laboratory data, a team led by Johns Hopkins researchers has solved a small but important part of this reproductive puzzle.
Nature leads the way for the next generation of paints, cosmetics and holograms
A plant-like micro-organism mostly found in oceans could make the manufacture of products, from iridescent cosmetics, paints and fabrics to credit card holograms, cheaper and 'greener'.
Hydrothermal vents: hot spots of microbial diversity
Thousands of new kinds of marine microbes have been discovered at two deep-sea hydrothermal vents off the Oregon coast by scientists at the MBL (Marine Biological Laboratory) and University of Washington's Joint Institute for the Study of Atmosphere and Ocean.
Acid oceans warning
The world's oceans are becoming more acid, with potentially devastating consequences for corals and the marine organisms that build reefs and provide much of the Earth's breathable oxygen.
The fastest continent
50 million years ago the Indian sub-continent collided with the enormous Eurasian continent with a velocity of about 20 cm/year. With such a high velocity India was the fastest of the former parts of Gondwanaland, according to a report by a team of scientists from the GeoForschungsZentrum Potsdam (GFZ, Germany's National Lab for Geosciences) and the National Geophysical Research Institute, India, in the 18th October 2007 edition of the Science Magazine "Nature". Due to this collision at such high velocities the largest mountain belt on Earth, the Himalayas, was formed, as was the massive Tibetanplateau.
Study of bacterial communities may provide climate-change clues
As part of the world carbon cycle, bacterial communities in freshwater lakes break down carbon in decaying organic matter, converting it into carbon dioxide that is released into the atmosphere.
International plant gene pool becomes operational
A new multilateral system for the fair and equitable sharing of plant genetic resources for food and agriculture has become operational, FAO announced today.
Understanding mysterious continental intraplate earthquakes
A new volume published by the Geological Society of America sheds light on mysterious earthquakes in the interiors of continents. These earthquakes, like those that occur in the central U.S., are what the book's editors describe as "an embarrassing stepchild of modern earthquake seismology."
New population of iberian lynx raises hope
Spanish authorities have announced they have discovered a previously unknown population of Iberian lynx, triggering hope for one of the world's most endangered cat species, said World Wildlife Fund.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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