Surprising symbiosis: Glassy-winged sharpshooter eats with friends
...this black-box ecology just does not work well. To really understand the system, you've got to assign the different bits of DNA to organisms. This study shows why." For this particular insect-bacteria trio, genome-based reconstructions of metabolic activity suggest that the two resident bacteria are close ...Nanotubes used for first time to send signals to nerve cells
...eems to develop something new every week, and it's really become a great interaction." ...Cutting calories slightly can reduce aging damage
...is a very good marker of aging damage. "I'd never really thought about RNA before," Holloszy said. "Research has always looked at DNA. Because RNA is the template for the information on the genes on the DNA, RNA damage is a major problem because it results in mutations in the transcription of proteins." ...Trials for new drug to overcome HIV
...457. "It's a truly novel new class of drugs, and I really support their development," says Charles Boucher of the University Hospital Utrecht in the Netherlands. "If [PA-457] turns out to be non-toxic, easy to use and not to select for resistance, it will find good use," he says. ...K-Staters design and build a low-cost remote sensing tool for environmental studies
...that offers tremendous flexibility to users. We're really developing a new tool for researchers that will allow them to go out and comprehensively map the vegetation in a field-sized area, for example, one square section." Schinstock said the concept of using the sensing tool for nonmilitary applications o...Fertility hope as study shows eggs survive in older ovaries
...rom stem cells in the bone marrow or the ovary, we really don't know and further experimentation is needed to find out." Dr Kerr said the phenomenon of egg regeneration in mice did not necessarily mean the same happened in humans. "But the mechanism could provide direction for ovarian stem cell research an......, but very little is known about whether the brain really prefers novelty as such. Rather, the major "novelty center" of the brain--called the substantia nigra/ventral tegmental area (SN/VTA)--might be activated by the unexpectedness of a stimulus, the emotional arousal it causes, or the need to respond beh...Scientists tie several cancers to common 'oncogene engine'
...ts of excitement, and I believe that is the way to really nail these tumors." ...Methane-belching bugs inspire a new theory of the origin of life on Earth
...o assemble into complex molecules. "But that's not really what the driving force was in early evolution," Ferry asserts. "Nobody had properly considered thermodynamics." "The problem of early energy sources has largely been ignored by the classical origin-of-life field," Molecular Biology and Evolution's ...Transgenic goat's milk offers hope for tackling children's intestinal disease
...transgenic food products that has the potential to really benefit human health," said Professor Jim Murray, who led the study along with Professor Gary Anderson and animal scientist Elizabeth Maga. "The results of the study indicate that the protective, antibacterial characteristics of lysozyme-rich human b...Movie spies on malaria parasite's sneaky behavior
...el. "That is the beauty of this technique. You can really see what happens in real time--there are no gaps," said Amino, now a professor of biochemistry at Federal University of Sao Paulo, Brazil. The scientists also found that while the parasites are physically hidden inside the merosome, they further pr...Researcher gives hard thoughts on soft inheritance
...form soft inheritance. That's all I'm saying. The really heretical thing to say is that the environment could be pushing the epigenetic information in a direction that is beneficial. This is the more extreme variation of soft inheritance that raises the hackles." Packing DNA Epigenetic ...Large dinosaurs were extremely hot in their day, UF study finds
...hink back to about 110 million years ago when they really ran hot and heavy. One of the larger animals, a behemoth called Sauroposeidon proteles, weighed close to 120,000 pounds as an adult. Now, a new study led by the University of Florida suggests it may have had a body temperature close to 48 degrees C...Arctic expedition will investigate alien-like glacier
...thrive in a cold and sulfur-rich environment. "We really want to try and understand the plumbing system for this spring and where all this sulfur is coming from," Beauchamp said. "This is a very unusual feature on the earth's surface and it's an extreme ecosystem that could be a good model for how life fir...One therapeutic dose of radiation causes 30 percent spongy bone loss in mice
...onauts traveling on long space flights. "We were really surprised at the extent of bone loss," said lead researcher Ted A. Bateman of Clemson University. "We're seeing bone loss at much lower doses of radiation than we expected." The mice suffered the loss of trabecular bone, the spongy area of bone insid...The shape of life: research sheds light on how cells take shape
...mation is critical to the creation of life. Now we really understand the mechanism behind this type of pattern in microtubules. Force is the key." ...Bird brains shrink from exposure to contaminants
...en persisting since the late 1960s--that's what is really disturbing," said Dr. Andrew Iwaniuk, a post-doctoral research fellow in the U of A's Department of Psychology. "It has been years since it has been used and still has this effect." The new research, published in Behavioural Brain Research, strongl...Pathway toward gene silencing described in plants
...d DNA-FISH were key to the study. "This toolkit is really powerful," Pikaard said. "It enabled us to look at a complex pathway and figure out not only the order of events but also the spatial organization of the pathway in the nucleus. Our hope for the future is to develop tools that will enable us to w...Invasive species alter habitat to their benefit
...t they're all happening concurrently, so you can't really tell which is causing the other." Other factors may enter in. For example, human activity, such as the use of fertilizers and road salt and the suppression of natural wildfires, also may result in environmental changes that affect species diversity. ...When it comes to gene transcription, random pauses aren’t quite so random, study finds
...o stop. Some pauses we've already figured out. The really long ones, which happen every 1,000 bases or so an...and occur every 100 bases or so--and their role is really something of a mystery." Sequence dependent To find the answer, Kristina M. Herbert, a graduate ...