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Tag: "grows" at biology news

Amazon rainforest greens up in the dry season

...e research team figured out when the intact forest grows by analyzing five years of satellite images from t...in the Amazon that suggested the intact rainforest grows more during the dry season. Those studies analyzed data from flux towers, which measure the seasonal...

NJIT engineer poised to take stem cell research a step forward

...itions for which stem-cell treatment holds promise grows almost daily: It now includes Parkinson's, diabetes, Alzheimer's, cancer and traumatic brain injury. "Treena's research is exciting because she has had success in crafting the right environment for stem cells to grow into other cells," said William ...

Gene-specific Ebola therapies protect non-human primates from lethal disease

...elly L. Warfield. "With Ebola infection, the virus grows so fast that it overtakes the host immune system. What we did, essentially, was to hold off the viral replication long enough for the host to mount an immune response and clear the virus." Working with a class of compounds known as antisense phosph...

Climate change drives widespread amphibian extinctions

...th of which favor the chytrid fungus. The organism grows and reproduces best at temperatures between 63 to 77 degrees Fahrenheit (17 to 25 degrees centigrade). The fungus kills frogs mostly in cool highlands or during winter, implying that low temperatures make it more deadly. So the idea that it flourish...

'Genetic network' guards against lethal DNA damage

...ntial genes are important enough so that the yeast grows slowly if any one of them is absent. And any of the 4,000 other genes can be deleted from the cell without interfering with the cell's growth. A major goal of the Hopkins team is to determine which of the non-essential genes interact with each other...

Alaska seal pup diet may hold key to decline of population

...rients. Measuring bone growth to see if one group grows more quickly. Monitoring the concentrations of cortisol, in response to a stressor that dilates the pupils and increases heart beat. Animals in the low fat group may take a longer time to recover. Comparing their data with observations and tests o...

Purdue creates new low-cost system to detect bacteria

...ous pathogens. "The dairy industry, for example, grows bacteria on petri dishes to make sure products are safe, but industry is trying to develop technologies that will very quickly identify organisms," Robinson said. "The same sort of thing holds true for clinical microbiology and other laboratories. Wi...

Study finds how organs monitor themselves during early development

... a larval development phase during which the ovary grows remarkably fast. In three days the number of primordial germ cells rises from twelve cells to 100 cells. The scientists started by looking at larvae with defects that cause them to have too few germ cells. The animal could well mature with this d...

DOE JGI finishes 100th microbial genome

...ciences Center at Houston. Metabolically diverse, grows in wide variety of conditions; photosynthetic, providing fundamental insights into light-driven, renewable-energy production; can detoxify metal oxides. Shewanella species. Jim Fredrickson, Pacific Northwest National Laboratory. Degrades metals in...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

...disappears and its stomach shrinksaway, even as it grows a specialized organcalled the trophosome that houses thesymbiotic bacteria it collects. "It is anabsolutely obligate symbiosis for the worm,"Fisher explains. "If the larvae do not getthe right symbiont, they die." The prevailing hypothesis was that ...

Recombination protein dynamics observed with single monomer resolution

... damaged DNA. The protein forms a filament, which grows and shrinks primarily by one monomer at a time, th...n," Ha said. "We also learned that as the filament grows and shrinks, it does so by one protein unit at a time." Following recombination proteins step by st...

Time of day tempers tadpoles' response to predators

... trade-off. The more a tadpole eats, the faster it grows big enough to transform into a frog; yet finding food requires being active, which ups the odds of becoming someone else's dinner. Scientists have known that prey adjust their activity levels in response to predation risk, but new research by a Un...

Airborne mold spores increase kids' risk for multiple allergies

...n June 14. A fungus is a plantlike organism that grows by releasing tiny reproductive cells (spores) into the air. Mold is a type of fungus that can grow on any moist surface--including wood, drywall and cement. Previous allergy studies focused on visible mold or total mold concentrations, not the ident...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

..., but only if diagnosed early. Since the prognosis grows considerably worse once the cancer has spread to other organs, the prevention of metastasis-the phenomenon in which cancer cells separate from a tumor mass, move through the bloodstream, anchor down in a distant tissue or organ to begin a new cancer-...

No-mow grass may be coming to your yard soon

...icultural accomplishment would be grass that never grows but is always green. Now, that vision of suburban bliss -- and more -- seems plausible as scientists have mapped a critical hormone signaling pathway that regulates the stature of plants. In addition to lawns that rarely require mowing, the finding...

Parasitic plants sniff out hosts

...ing in today's (Sept. 29) issue of Science. Dodder grows throughout the world and is a difficult pest to eliminate because chemicals that kill the parasite also often kill the host plant. "There is currently no reliable way to get rid of these pests," says Justin B. Runyon, graduate student in entomology....

Stormy days ahead for coral reefs

...s. Vulnerability also depends on whether the coral grows on the front, crest, flat or the back of the reef, where the force of the waves progressively dies away. The team ran a field test at Lizard Island, in the northern part of the Great Barrier Reef, taking digital photographs of corals, and calc...

A giant among minnows: Giant danio can keep growing

...maximum of six inches. The zebrafish, in contrast, grows to about two inches. The zebrafish has been a staple of genetic research because it is easy to raise and maintain. But the fish is too tiny for physiological research. So the researchers were interested in finding a close zebrafish relative to allo...

Coral reefs are increasingly vulnerable to angry oceans

...s. Vulnerability also depends on whether the coral grows on the front, crest, flat or the back of the reef, where the force of the waves progressively dies away. The team ran a field test at Lizard Island, in the northern part of the Great Barrier Reef, taking digital photographs of corals, and calcul...

Study finds the air rich with bacteria

...lture media is exposed to the sample, and whatever grows is counted. Unfortunately, this approach leaves out all of the organisms that can't survive in the culture, which in some cases is as much as 99 percent of the bacteria in a sample. In this census, however, Andersen and colleagues used a vastly m...

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