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Tag: "springs" at biology news

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...e journal, Geology. The discovery of deep sea hot springs and an abundance of microbes in the subseafloor ar...surface microbes they found to those living in hot springs such as those at Yellowstone National Park. ...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

Microbes living in the brilliantly coloredhot springs of Yellowstone National Park use primarily hydroge...ysis of thevarieties of microbes living in the hot springs communities revealedthat they all prefer hydrogen as an energy source. They also observedubiquitous ...

Marine bacterium suspected to play role in global carbon and nitrogen cycles

...been associated with extreme environments like hot springs and deep-sea vents, but about a decade ago molecular studies proved their abundance in more common environs including the open ocean, freshwater and soil. Subsequent efforts to grow various samples of these organisms led to this cultivation of N. ma...

Why Christmas trees are not extinct

...s the mat, and the margo represents the supporting springs with holes between them," Sperry says. "The margo holds the torus in place just like springs hold the trampoline in place." Water cannot pass through the central torus, but easily flows throu...

Poison + water = hydrogen. New microbial genome shows how

...find out, the researchers are dipping into the hot springs of Yellowstone, Russia, and other far-flung locales, to isolate and decipher the genomes of microbes found there. "What we want to have is a field guide for these microbes, like those available for birds and mammals," Eisen says. "Right now, we can...

Hot-spring bacteria flip a metabolic switch

...thetic bacteria living in scalding Yellowstone hot springs have two radically different metabolic identities. As the sun goes down, these cells quit their day job of photosynthesis and unexpectedly begin to fix nitrogen, converting nitrogen gas (N2) into compounds that are useful for cell growth. The study,...

New RNAi tools enable systematic studies of gene function

...ally all types of human and mouse cells. This work springs from the RNAi Consortium (TRC), a unique collaboration among academic research institutions and leading life science companies with the mission to build comprehensive RNAi libraries and make them available to scientists worldwide. "Switching off a s...

A surprising pair of proteins help make healthy eggs

...he formation of a rare kind of ovarian cancer that springs from granulosa cells. The scientists arrived at their findings by creating two matched rat cell lines of ovarian granulosa cell origin. In the experimental line, the level of TAF4b was increased. Berkeley researchers compared these lines and were ab...

Protein 'nanosprings' most resilient found in nature

...r level, the researchers said. The nanometer-sized springs are also ideal candidates for building biologicall... accordingly." The tension created by the ankyrin springs could allow for very rapid translation of mechanical forces into biochemical signals, he said. The ...

A step forward in the fight against bacterial infections

...erium, or a bacterial component, the immune system springs into action. One such component of the bacterial cell wall is LPS. The binding of LPS with its specific receptor in our immune system − TLR4 − initiates a long series of reactions that bring on an inflammation, which eliminates the bacter...

Experimental RNA-based drug kills prostate cancer cells effectively and safely

...tricks its way into prostate cancer cells and then springs into action to destroy them, while leaving normal cells unarmed. The drug, developed at Duke University Medical Center, uses one type of genetic material, called targeting RNA, to enter cancer cells, and another type, called silencing RNA, to stop ...

Arctic expedition will investigate alien-like glacier

...es sites on Earth," Berinstain said. "These sulfur springs in the Arctic may just put us one step closer to answering that age old question: are we alone in the Universe?" Beauchamp discovered the spring in the mid-1990s when he noticed a yellow stain on the snow while passing over the Borup Fiord Pass in a...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...t would kill other organisms, from Yellowstone hot springs to the hyper-salty Dead Sea to streams polluted by...p of Crenarchaeota that inhabit several acidic hot springs where temperatures reach 80 C (176 F). ''Collectively, our study provides evidence that ammonia-oxid...

How the brain's backup system compensates for stroke

...e pinpointed in humans how a "backup" brain region springs into action to compensate for disruption of a primary functional area, as happens during stroke. Their finding offers new insight into how the brains of stroke victims can quickly reorganize to enable the beginning of recovery of movement. Jacinta O...

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