Genetically endowed worm may substitute for rodents in some toxicology testing
...eedman and his workers can even produce "knockout" varieties of C. elegans to evaluate how the animal's physiol... Another variation is to create varieties of transgenic worm lines, each bearing a different gene that fluoresces green under stress. "That wa...International Rice Functional Genomics meeting in Tucson Nov. 15-17
... inside the plant is crucial for developing better varieties of rice. Wing estimates that this next task, the functional genomics of rice, will take scientists between five and ten years. "We need to know all we can about rice. We want to decode its genome to establish a research platform to understand the re...National Eye Institute funds search for genetic key to corneal disease
...e grant will allow his team to help diagnose other varieties of corneal dystrophy. "There are many types of dystrophy and it's difficult to discern them just by looking at them," Yee said. "Physicians will be able to send us blood samples of patients, which we can screen for known mutations using genetic mark...Genetically engineered corn poses no immediate threat to Mexican crops
...thousands of years ago the thought of imported GM varieties contaminating indigenous plants frightens many cit...r gene flow from transgenic corn to native Mexican varieties prompted the report, released today, called "Maize and biodiversity: Effects of transgenic maize in ...In a tiny squid, bacterial toxin governs organ development
...ermitting biologists to begin to identify the many varieties of bacteria that live in association with humans and other animals. In addition to McFall-Ngai, authors of the Science paper include Tanya A. Koropatnick of the University of Hawaii, Jacquelyn T. Engle and William E. Goldman of the ...Plant pathologists offer soybean rust identification and management tips
...athologists have screened all available commercial varieties of soybeans for resistance to soybean rust, but none have proven to be resistant. There are some varieties that are more susceptible to the disease and it will be important to identify these early on to redu...Fragmented habitats no ultimate refuges for forest-dwelling tropical birds
...ve lush tropical foliage." They estimated how many varieties of birds lived in the region before deforestation by consulting available records and superimposing maps of the known ranges of tropical species. Dissatisfied with available data on the extent of the current forest, they created their own map using d...Study suggests nutrient decline in garden crops over past 50 years
... most likely explanation was changes in cultivated varieties used today compared to 50 years ago," Davis said. ...rs, there have been intensive efforts to breed new varieties that have greater yield, or resistance to pests, or adaptability to different climates. But the domi...UCSD biologists identify gene in corn plants that may have paved way for development of maize
...te, but only one variant of the gene in all inbred varieties of modern maize, provides tantalizing evidence that Mesoamerican crop breeders most likely used this trait in combination with a small number of other traits to selectively transform teosinte to maize, one of the landmark events in the development of...Eating red meat may increase the risk of rheumatoid arthritis
...ers found that a diet lacking in fruit, especially varieties high in vitamin C, increases the risk of inflammatory arthritis, a common early sign of RA, as much as three-fold. Building on this compelling finding, they set out to investigate the association of other dietary habits with the onset of RA. Their ...International team finds gene variants that affect response to HIV infection
...s response to HIV infection depends heavily on the varieties -- or alleles -- of the genes encoding HLA molecules that the person has. But not all categories of HLA genes are equally important. The class I HLA alleles are divided into three categories -- HLA-A, HLA-B, and HLA-C. Specific HLA-B alleles generate...Canola study solves seed oil mystery
...s use to make oil will help us to develop new crop varieties with greater oil content," said co-author John Ohlrogge, MSU distinguished professor of plant biology and Michigan Agricultural Experiment Station scientist. "And this becomes especially important as the world depletes its supplies of petroleum." ...Nanotubes glow, even within biological cells
...breaking 2002 discovery that each of the dozens of varieties of semiconducting, single-walled carbon nanotubes (SWNTs) emits its own unique fluorescent signature. The new findings suggest that SWNTs might be valuable biological imaging agents, in part because SWNTs fluoresce in the near-infrared portion of......d from a wild form of sugar beet, makes cultivated varieties fully resistant to the nematodes, one of the major pests in sugar beet. Christian Jung has also had great success in isolating genes which determine the sexual differentiation of plants. This work is of great importance, not only for basic molecular ...Cells don festive holiday colors
... out fruit baskets; the names describe vibrant new varieties of fluorescent protein that the researchers have created to tag cells and observe a range of cellular processes. By splicing the genes for the fluorescent proteins into specific genes in the cell, researchers can detect when those genes are switched...Gene sequencing explains bioremediation 'bug'
... in nature, Strain 195 and other Dehalococcoides varieties are proving difficult to culture in the laboratory, the Cornell microbiologist acknowledges. Together, the academic and corporate researchers are learning more about Dehalococcoides husbandry. For example, it seems to like a cocktail of acetate, vi...Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
...he main source of energy. Genetic analysis of the varieties of microbes living in the hot springs communities revealed that they all prefer hydrogen as an energy source. They also observed ubiquitous H2 in all the hot springs at concentrations sufficient for microbial bioenergetics. Thermodynamic models base...New monkey species name to be auctioned
...ant river otters, over 1,000 bird species and many varieties of rare orchids and other unique plants. According to Wallace, very little is known about the new monkey except that it stands about a foot tall, weighs two pounds and likes fruit. In the morning pairs of them gather and "duet," calling back and fo...Chemical analysis of mushrooms shows their nutritional benefits
...is at Urbana-Champaign found that the six mushroom varieties tested -- in raw and cooked forms and at various harvest times and maturity levels -- are rich in total dietary fibers, including those associated with cholesterol-lowering (chitin) and healthy hearts (beta-glutan). The findings appear online in adva......he surfaces of microbes. There are more than fifty varieties of these sugars, which are present in different combinations inside people's mouths. Various combinations seem to make people more or less prone to cavities, according to Denny. By analyzing the protein sugars in an adult's saliva, Denny's research ...