Tag: "biologists" at biology news
Transgenic Rice Plants Resist Insects, Drought And Salt Damage
...e transgenic rice technologies. Now that molecular biologists
know how to transfer the insect-resistance gene to rice, Wu predicted, it should work against any lepidopteran (or caterpillar type) insect that eats plants in the larval stage -- and that is about 70 percent of the known insect pests worldwide. Amo...
Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
ITHACA, N.Y. -- Plant biologists
have long held the view that photosynthesis -- the process by which cells in green plants convert the energy of sunlight into chemical energy and use carbon dioxide to produce sugars -- needs two intermediate light-dependent reactions for successful ...
Surprising Protein Movement Seen In Cells
...uorescent protein is fused with theDNA of proteins biologists
want to study, making themfluorescent. Then, resea...molecules needed for amultitude of functions. The biologists
were surprised todiscover that the proteins move fast enough to traverse theorganelle within a few s...
Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...ear would harm them, a Cornell University team of biologists
has reported to the National Marine Fisheries Serv...m. Start-up of ATOC was delayed in 1994 when some biologists
and environmentalist groups expressed concern that ATOC sounds could harm -- or even deafen -- whal...
Human-Like Ability, Categorical Perception, Found In Insects
...tion of Sound Frequency by Crickets." The Cornell biologists
set up a cricket flight chamber, wired for sound, computerized data-gathering and a built-in breeze from a fan, to make the cricket think it is flying while tethered in midair. "We weren't looking for the so-called continuous perception," Wyttenbach...
Researchers Identify A New Cellular Structure: The "Dumposome"
..., and thedumposome is the first cellular component biologists
have implicated in DNA elimination. Scientists had expected thatthe process would involve genetic markers that identify the doomed DNA, molecular scissors to snip it out, and enzymesto degrade it (all of which Allis suspects work in tandem with dumpo...
Green Glow: Not Only For Halloween
...e objects glow green. Now, molecular and cellular biologists
have turned this marvel into a powerful research t...ish. National Science Foundation-supported biologists
James Remington of the University of Oregon and Roger Tsien of the University of California at San D...
...food they found than eat the food themselves. The biologists
watched and listened through transparent laborato...il. In various sites in a plastic tunnel maze, the biologists
had placed pea-sized bits of sweet potato. That simulated conditions in Africa, where the chisel-to...
Two Long-sought Diabetes Gene Found
... widely between different ethnic groups. Molecular biologists
are particularly interested in MODY because it provides a way to unravel the complex genetics of adult-onset diabetes. Most people with NIDDM develop symptoms only after age 40, which has made it difficult to gather the large multi-generational famil...
New Finding Suggests "HATs" Are Key To Gene Activation Puzzle
...ored. "How genes are activated has confounded biologists
for years," says C. David Allis, a professor of biology who madethe finding with post-doctoral fellows Craig Mizzen and JamesBrownell at Rochester. "Gene activation at the right time and place is critical for cell survival and properdevelopment. Scie...
Bigger Biology Tackled Through Keyboards
...results of each strategy over time. Computational biologists
begin to understand these kinds of problems bybuil...e of the general challenges faced by computational biologists
includedealing with phenomena on different scales of time, space and organizationalcomplexity. "If y...
Scientists Urge Further Study Of Alarming Coral Reef Decline
...xicologistsbegin to address these issues," the two biologists
concluded intheir paper. Corals, like jellyfish and sea anemones, belong to thephylum Cnidaria. They are tiny animals that use their tentaclesto catch food particles floating in the water. Certain types ofcorals produce calcium carbonate skeleto...
Isle Royale Moose Continue Decline
...pleting field work on the island in March of 1996, biologists
estimated that there were 1,000 to 1,200 moose within the park. By then, surviving moose were severely stressed from lack of food, deep snows, and a heavy infestation of winter ticks. The moose population was dealt yet another blow, the late arrival ...
Everyday Technology Underlies First DNA Computer Logic Gates
...es we've used are the same ones that thousands of biologists
use every day in their labs." Ray, an assistant professor of biology, and Ogihara, an assistant professor of computer science, took fellow researchers by surprise with their announcement at the recent First International Conference on Computation...
Stopping "Cellular Suicide" Could Boost Production In Biotech Labs
...me point you canstop it. I'mcollaborating with the biologists
who are figuring out what thosestop signalsare. Then, as an engineer, my job is to apply those stop signalsto the celllines that I'm developing." One potential stop signal is membrane protein called bcl-2. Whenthismaterial is inserted during the gene...
Gene Shears In Cutting Edge Anti-Aids Trial
...riginal discovery by CSIRO Plant Industrymolecular biologists
Dr Jim Haseloff and Dr Wayne Gerlach that naturally-occurringenzymes called ribozymes (dubbed "gene shears") can be used selectivelyto chop up pieces of genetic material. Gene Shears Pty Ltd went on to provein laboratory experiments that ribozymesit...
Yale Breakthrough In Destroying Drug-Resistant Bacteria Focuses On Thwarting Genes That Cause Resistance
New Haven, CT - Yale University biologists
for the first time havesucceeded inpreventing the ...ia to either chloramphenicolorampicillin, the Yale biologists
crafted synthetic genes coding for strings ofRNA and introduced them into the bacteria via small cir...
Disease Takes Its Toll On Waterfowl Populations
...lity; during this year's fall migration, Canadian biologists
are estimating the losses at one southern Saskatch...he Great Salt Lake, U.S. Fish and Wildlife Service biologists
report waterfowl mortality from botulism has reached nearly 100,000 birds. Most recently, approxima...
Jefferson Scientists Develop Botulism Vaccine
at Thomas Jefferson University, Philadelphia, have created an oral vaccine against botulism. The researchers believe that such a vaccine could be used as a prototype in developing future vaccines for other diseases such as diphtheria, who...
Biodiversity Worth $2.9 Trillion
...ould be $2.9 trillion, according to an analysis by biologists
at Cornell University. For the United States alo...enefits of biodiversity would be $319 billion, the biologists
report in the December issue of the journal BioScience . (Vol. 47 pp. 747-757). "When you compare ...
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