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Tag: "varieties" at biology news

Tiny particles could solve billion-dollar problem

...d collaborators compared the effectiveness of four varieties of palladium catalysts: bulk palladium, palladium powder on an aluminum oxide support base, pure palladium nanoparticles and a hybrid nanoparticle developed by Wong that consists of a gold nanoparticle covered with a thin coat of palladium atoms. As...

Learning to fight an adversary that won't stay down

...ngton D.C. The ongoing appearance of new pathogen varieties like multi-resistant E. coli and Staphylococcus aureus (MRSA), the bacterium that causes methicillin-resistant tuberculosis, provide good examples of the challenges we face, says Dr. Davies. Ironically, he says, advances in molecular biology techniq...

Genetically modified rice in China benefits farmers' health, study finds

...l Science. "This paper studies two of the four GM varieties that are now in farm-level preproduction trials, t... that are cultivating the insect-resistant GM rice varieties demonstrate that when compared with households cultivating non-GM rice, small and poor farm househol...

Red delicious, Northern Spy apples have most antioxidants, chemists find

...to Canadian researchers who analyzed eight popular varieties of the fruit. Red Delicious, Northern Spy and Ida Red, they say, pack a greater wallop of disease-fighting antioxidants than other apples studied. The researchers, led by Rong Tsao, Ph.D., of Agriculture and Agri-Food Canada in Guelph, Ontario, also...

Sugar beet virus mutation requires Texas touch

... resistance to rhizomania was bred into sugar beet varieties and until 2002, that was effective, Rush said. But with only one gene selected for resistance, the plant virus mutated and overcame the resistant gene. "We're going in now and looking at the molecular makeup of the plant virus," he said. Making tri...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

... to 20 meters thick, unexpectedly high numbers and varieties of large Arctic jellies, squid, cod, and other animals have been found thriving in the extreme cold, thanks to a landmark voyage during the brief polar summer aboard an American ice cutter. News of the marine discoveries in the far north coincides w...

Best research work in the area of wine growing

...ed "Recovery of photosynthetic activity in 4 grape varieties after a hydric stress event", studied the response...is evaluated once the irrigation of the four grape varieties was renewed". Plants grown in inclement weather conditions and where irrigation was suspended in mid...

Wild grasses and man-made wheats advance research capabilities

...growth in the fall." These synthetic spring wheat varieties must be backcrossed to make them winter wheats, he said. Then they can be looked at for other characteristics. "If we find something useful in the wild, we may make a synthetic hexaploid from it, or directly cross into wheat," Rudd said. "Through tr...

Insects develop resistance to engineered crops

...troduced dual-gene cotton in 2003, but single-gene varieties remain on the market. "Single-gene Bt plants have provided good economic and environmental benefits, but from a resistance management standpoint they are inferior to dual-gene plants. U.S. regulatory agencies should consider discontinuing the use of...

Hybrid grass may prove to be valuable fuel source

...e will benefit from that lead," Long said. Other varieties of Miscanthus have been grown successfully in Indiana, Michigan and Ohio. However, the giant Miscanthus being grown by the Illinois researchers has the greatest potential as a fuel source because of its high yields and because it is sterile and canno...

A slight difference and significant similarities

...s in the Agria, Desiree, Granola, Linda and Solara varieties exhibit a surprising range of variation. The genet...sive substance comparison between individual plant varieties is costly, as hundreds of substances have to be measured simultaneously. Former Max Planck research ...

Unweaving amyloid fibers to solve prion puzzles

...d a combination of low resolution tools to analyze varieties of prion strains and piece together the puzzle of how amyloids form. "We now have an overall picture of how prions join together to form the amyloid's molecular structure," says Lindquist, who also is a professor of biology at MIT. Prions are in th...

UCSD discovery may provide novel method to generate medically useful proteins

...by which a simple organism can produce 10 trillion varieties of a single protein, a finding that provides a new tool to develop novel drugs. In the September 18 advance on-line publication of the journal Nature Structural and Molecular Biology, the researchers describe the mechanism by which a virus that infe...

Did humans cause ecosystem collapse in ancient Australia?

...ake up during photosynthesis. The tell-tale carbon varieties were preserved in the eggshells and teeth and told us what types of plants the animals ate. We saw a sudden shift in plant type coincident with the arrival of humans. The shifting diet shed light on the extinctions. The animals that relied mostly on ...

Whisky fans can drink to crop research

...into the genetics of barley could lead to improved varieties of the crop most commonly used in the production of whisky and beer. Scientists funded in part by the Biotechnology and Biological Sciences Research Council (BBSRC) are beginning a new programme to uncover key genes that control the specific characte...

Study: Plants use dual defense system to fight pathogens

...ell. While P. syringae injects about 40 different varieties of effector molecules into a plant cell, the researchers focused on the actions of two of these molecules ?AvrRpt2 and AvrRpm1. Both target a protein key to Arabidopsis health­. The scientists found that both of these effector molecules effectively ...

Genetically modified maize not found in southern Mexico

...rt to survey the frequency of transgenes in native varieties of maize. Four years ago, researchers reported fi...housands of years ago ?the thought of importing GM varieties that could contaminate native plants frightens many citizens. "The genetic diversity of native maiz...

Kenya halts first field trials of GM maize

...go, aims to develop both conventional and GM maize varieties to resist the pest. The GM plants, which incorporate genetic material from a bacterium called Bacillus thuringiensis, have already been grown under experimental conditions in IRMA's US$12 million 'biosafety' greenhouse ( see $12 million greenhouse s...

GM crop that holds on to its seeds offers higher yields

...aard says that combining the new drought resistant varieties with his teams' plants that do not shatter their seeds could yield crops that are well suited for the warmer climates of most developing countries. Link to abstract of paper in Plant Biotechnology Journal Reference: Plant Biotechnology Journal ...

University of Arizona plant scientists to unravel maize genome

...us which genes we need to focus on to develop corn varieties that produce higher yield and better quality with ...ons for other cereal crops besides corn, including varieties important for Arizona, such as wheat, sorghum and millet. "A lot of applications will result from t...

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