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Tag: "biology" at biology news

UCSD study reveals how plants respond to elevated carbon dioxide

...imperative," said Julian Schroeder, a professor of biology at UCSD who directed the project. "Our results pro...n the leaf. Jared Young, an assistant professor of biology at Mills College, who completed the study while he was a graduate student working with Schroeder at ...

UGA scientists engineer root-knot nematode resistance

...researchers have effectively turned the nematode's biology against itself. They genetically modified Arabidopsis, a model plant, to produce double-stranded RNA to knock out the specific parasitism gene in the nematode when it feeds on the plant roots. This knocked out the parasitism gene in the nematode and...

Jefferson scientists identify gene mutation potentially involved in breast cancer initiation

...chael P. Lisanti, M.D., Ph.D., professor of cancer biology at Jefferson Medical College and Richard Pestell, M.D., Ph.D., director of Jefferson's Kimmel Cancer Center, found that a known mutation in the Caveolin-1 gene is present in approximately 19 percent of all breast cancers that are fed by estrogen ?so ...

Bacterial 'switch gene' regulates how oceans emit sulfur into atmosphere

...MSP metabolism opens the door to understanding the biology and ecology of this globally important process," said William Whitman, a microbiologist at the University of Georgia and co-author of the Science paper. The discovery of a bacterial gene switch in these two groups of plankton will open new areas of r...

Researchers find that bumblebees' flower choice matters

...ion, Karron's research centers on the reproductive biology of monkey flower, a wetland plant native to Wisconsin. Karron's lab uses several innovative methods of tracking monkey flower mating, and all hinge on where the pollen comes from. Pollen allows the flowers, which contain both male and female repro...

Genetic 'roadmap' charts links between drugs and human disease

...this initial map to encompass all aspects of human biology would provide a valuable public resource for the scientific community. Such an effort would parallel the sequencing of the human genome, both in its scope and in its potential to accelerate the pace of biomedical research." ...

Gut reaction: Researchers define the colon's genome

...our immune and nervous systems, as features of our biology that are affected by our individual environmental exposures? How is the human microbiome evolving as a function of our changing diets, lifestyle, and biosphere? Finally, how might we alter these microbial communities for better health in a person or ...

Adults who go to bed lonely get stress hormone boost next morning

...environments get under the skin to influence their biology and health. "Stress systems are designed to translate social experience into biological action," she said. "They are designed to be a conduit from the outside world to our internal worlds so that we can better respond to our social context. The overa...

Tweedle coat fashions stocky flies

...nside," explained Steven Wasserman, a professor of biology who headed the research team. "An insect needs to build up the flexibility, strength and shape of each part before sealing the outside. If you've ever peeled a golf ball, you realize there isn't just one thing holding it all together. Each part co...

Combination therapy shows promising results in patients with advanced lung cancer

...es utilizing this dose will now be required." The biology of an individual's tumor determines whether they will respond to Tarceva. Because researchers don't yet fully understand what biologic characteristics determine response, they can't test patients first to determine who should be given the drug. Since...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...t Ehud Y. Isacoff, professor of molecular and cell biology and chair of the Graduate Group in Biophysics at UC Berkeley. "If we can control them by light, then we could develop treatments for eye or skin diseases, even blood diseases, that can be activated by light. This challenge lies at the frontier of nan...

Researchers discover how bacteria sense their environments

...ane, assistant professor of chemistry and chemical biology and corresponding author of the paper. "Biological...Freed, Cornell professor of chemistry and chemical biology and director of the National Biomedical Center for Advanced ESR Studies at Cornell, developed the sp...

'Cellular antennae' on algae give clues to how human cells receive signals

...nnae," said Dr. William Snell, a professor of cell biology at UT Southwestern and senior author of new research on cilia published in the May 5 issue of Cell. Genetic defects in cilia can cause people to develop debilitating kidney disease or to be born with learning disabilities, extra fingers or toes, or ...

Eminent inventor of DNA fingerprinting gains new recognition

... sheep. "The new discipline of forensic molecular biology is therefore a direct outcome of Jeffreys' research, but his discoveries have also opened up other doors, for example the ability to determine whether someone is a carrier of certain pathogenic genes. Most recently, Jeffreys has concentrated on genet...

Expanding waistlines triggered by your genes

...nding may fill a gap between conventional 2-D cell biology and 3-D tissue function. These findings shed new light on adipocyte biology and possibly will provide novel therapeutics to prevent the progression of obesity. The researchers ...

Fire ants: Their true story told by the scientist who loves them

... U.S. Sun Belt via 1940s Mobile, Ala., is known in biology circles as Solenopsis invicta and everywhere else ...ter understand, if not appreciate, both the social biology and ecology of a despised creature and the hows and whys of scientific research. Along the way, he o...

Researchers find protein that silences genes

...Pikaard, Ph.D., Washington University professor of biology in Arts & Sciences and colleagues have identified the protein HDA6 as an important player in the silencing. Using the experimental plant genus Arabidopsis, they have shown that HDA6 is located in the nucleus of Arabidopsis cells, and they have im...

Robots manipulating animal behaviour

... is unique and very promising for sciences such as biology and robotics." Not only did the insbots act like...lking. Our project demonstrates that the fields of biology and IT can work together more closely in future." Though the project has officially ended, some of ...

Interfering RNA silences genes in 'slippery' immune cells

...nical advance in laboratory techniques may provide biology researchers broader access to RNA interference, a process of blocking the activity of targeted genes. RNA interference has recently emerged as an important tool in studying how genes function in normal biological processes and in disease. Writing in...

RNA found in the cellular centrosome of surf clams

... of clam cells," says Robert Palazzo, professor of biology and director of the Center for Biotechnology and Interdisciplinary Studies at Rensselaer. Palazzo's laboratory isolated clam centrosomes and Mark Alliegro and Mary Anne Alliegro of LSU Health Sciences Center analyzed the centrosomes for RNA content...

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