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Tag: "biology" at biology news

Whitefly spreads emerging plant viruses

...ations. Continued research to learn more about the biology and genetics of both the plant viruses and the whitefly is also needed....

Study of planarians offers insight into germ cell development

... But University of Illinois cell and developmental biology professor Phillip Newmark thinks it should be. As it turns out, the tiny, seemingly cross-eyed flatworm is an ideal subject for the study of germ cells, precursors of eggs and sperm in all sexually reproducing species. The planarian Newmark studie...

MIT biologists solve vitamin puzzle

...tal to life," said Graham Walker, MIT professor of biology and senior author of a paper on the work that will appear in the March 22 online edition of Nature. Vitamin B12 is produced by soil microbes that live in symbiotic relationships with plant roots. During the 1980s, an undergraduate research course ...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

...man lives. "We will use modern high-throughput biology to annotate the biological structures of different subtypes of the avian influenza virus, at the same time as we study their variations," said principal investigator Peter Arzberger, director of Life Science Initiatives at UC San Diego. "We will also...

Cells use 'noise' to make cell-fate decisions

...t of life," said Dr. Süel, a member of the systems biology division of the Cecil H. and Ida Green Comprehensive Center for Molecular, Computational and Systems Biology at UT Southwestern. "Even though each cell may have the same set of genes turned on ?the same hard-wired genetic circuit ?there will still be...

Microfluidic chip helps solve cellular mating puzzle

...his is far beyond what you can do in a traditional biology lab dish that’s filled with a large colony of cells." Using cameras attached to a microscope, the researchers were able to view a microfluidic chip and study the mating behavior of yeast cells in response to different concentrations of pheromone i...

MicroRNA helps prevent tumors

...rget genes," says David Bartel, who is also an MIT biology professor. "Seeing the difference encourages us to explore the biological importance of other examples of microRNA regulation."...

Biologically inspired sensors can augment sonar, vision system in submarines

...nts from their surroundings, Liu said. "Although biology remains far superior to human engineering, having ...nd engineering," Liu said. "To actively learn from biology at the molecular, cellular, tissue and organism level is still the bigger picture."...

Cracking open the black box of autoimmune disease

...sease," says Whitehead Member and MIT professor of biology Richard Young, senior author on the paper that will appear January 21 online in Nature. "With this new list of genes, we can now look for possible therapies with far greater precision." The immune system is often described as a kind of military un...

Short chromosomes put cancer cells in forced rest

...ider, Ph.D., the Daniel Nathans chair of molecular biology and genetics at Johns Hopkins. Her study, appearing online this month at Cancer Cell, uncovers an alternate response where cells simply - and permanently - stop growing, a process known as senescence. In an unusual set of experiments, the research...

Bacterial response to oxidation studied as toxin barometer

...il and environmental engineering and an adjunct in biology at Virginia Tech. “More like ‘sweat?potassium,...xin,?Love said. Ikuma, who was an undergraduate biology student at Virginia Tech when she began working with Love, has now come full circle from a biology s...

Genomics throws species definition in question for microbes

...ic traits. In the late 20th century, molecular biology uncovered the genetic relationships between microorganisms, and some of the secrets of microbes that had yet to be cultured in the lab (and hence phenotypically characterized) were revealed. "Much of this new knowledge was incorporated into speci...

Fruit fly gene research may shed light on human disease processes

... as a gene for cancer," explains James Erickson, a biology professor at Texas A&M University. "All human...n this month's issue of Current Biology, a leading biology journal. Human females have two X chromosomes in every cell, while human males have an X and a Y ...

Scientists reveal structure of gateways to gene control

...klin Pugh, professor of biochemistry and molecular biology and the study's lead investigator. The map pinpoints the locations of certain key gene-controlling nucleosomes -- spool-like structures that wrap short regions of DNA around a protein core. The research suggests how these nucleosomes, positioned at...

Reversing cancer cells to normal cells

...hnologic advances made in microscopy and molecular biology in recent years, the team was able to show that the aggressive melanoma cells secrete Nodal, a critical component underling the two-way communication between tumor cells and the embryonic microenvironment. Nodal is an embryonic factor (also called a ...

Biologists call for better choice of model organisms in 'evo-devo'

...anisms that have been inherited from developmental biology (fruit fly, nematode worm, frog, zebrafish, chick and mouse). To help understand how developmental change underpins evolution, evo-devo researchers have, over recent years, selected dozens of new model organisms, ranging from sea anemones to dung...

Cholera pathogen reveals how bacteria generate energy to live

...in itself. Blanca Barquera, assistant professor of biology at Rensselaer and principal investigator for the project, studies an enzyme that resides in the membrane that encapsulates V. cholerae. This enzyme, known as NQR, pumps sodium ions out of the bacteria to generate a difference in concentrations betwee...

Music genes and musical geniuses

Music under the microscope: the relation between biology and genetics and human music, its peculiarities and reasons. These are the main themes of the International Workshop on the Biology and Genetics of Music, to be held in Bologna, May 20 to 22, with leading scientists currently involved in researching ...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...s Charles Peterson, a professor of marine sciences biology and ecology at the Institute of Marine Sciences, University of North Carolina at Chapel Hill and co-leader of the study. The research builds upon an earlier study by Myers and Baum, published in Science in 2003, which used data from commercial f...

Research project tackles 'regeneration' gap

...re bringing together the best of the developmental biology world with the best of the stem cell world and starting the conversation, with the focus on how to get regeneration to work in a mammal," said Edward Scott, Ph.D., a professor of molecular genetics and director of the Program in Stem Cell Biology at ...

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