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Tag: "yellow" at biology news

Spider Venom Could Yield Eco-Friendly Insecticides

...ocky Mountain spotted fever (ticks) and dengue and yellow fever (mosquitoes). "One could envision specifically targeting mosquito larvae that carry human diseases such as West Nile or malaria, while leaving other insects and vertebrates unharmed," says King. ...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...chromes like carotenoids to acquire red, orange or yellow coloration, but McGraw and Nogare found that these compounds are not responsible for the red colors found in the parrot species they sampled. The researchers used a chemical analysis technique called high-performance liquid chromatography to survey ...

Transport System Smuggles Medicines Into Brain

...chromes like carotenoids to acquire red, orange or yellow coloration, but McGraw and Nogare found that these compounds are not responsible for the red colors found in the parrot species they sampled. The researchers used a chemical analysis technique called high-performance liquid chromatography to survey ...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

...cteria from the most arid site are pigmented ?red, yellow or pink ?as they grow in the laboratory, according to Minkley. The first phase of the ASTEP project began in 2003 when a solar-powered robot named Hyperion, also developed at Carnegie Mellon, was taken to the Atacama as a research test bed. Scientis...

Chemicals in tattoo inks need closer scrutiny

...o are testing three different brands of red, blue, yellow and white ink. Tattoo artists frequently mix inks to achieve the desired color, so the researchers selected their samples based on the most likely base colors. Because there have been no previous studies, they are using analytical techniques that ca...

Revolutionary nanotechnology illuminates brain cells at work

...ut slightly different colors–in this case cyan and yellow versions of GFP. The cyan is excited and, if the d...changes, more or less energy is transferred to the yellow protein. In this study, the cyan and yellow proteins behave as if they move away from one another wh...

Researchers discover underwater volcano

...ed volcanic cone. Much of Nafanua is covered with yellow "fluff," microbial aggregations that are produced by microscopic life feeding on chemical energy from the volcano's hydrothermal system. As Staudigel and his international team explored the area, they discovered a number of large communities of eels ...

Sugar beet virus mutation requires Texas touch

...gorated in 2002 when a new strain of beet necrotic yellow vein virus emerged. The new strain threatened sug...ing region in the world, Rush said. Beet necrotic yellow vein virus, which causes the disease known as rhizomania, was found near Hereford in 1986 by a Calif...

Butterfly migration could be largest known

... food and breeding grounds, powered by a supply of yellow fat they have built up over the winter. Painted ladies migrate every year, but usually less conspicuously and in far fewer numbers. This year, however, exceptionally high winter rainfall in southern California has created a bumper crop of plants for...

Scientists identify genes responsible for 'black rot' disease in vegetables

...ascular tissues, turning the veins in their leaves yellow and black, and causing V-shaped lesions along the margins of the leaves. All vegetables in the crucifer family, including broccoli, Brussels sprouts, cabbage, cauliflower, kale, mustard, radish, rutabaga, and turnip, are potential hosts for Xcc. The ...

Aptamer-based Biosensor screens Air Force personnel and equipment

...tectable to medium level of an agent is one or two yellow dots, and a high detection level is red. The biosensor system is designed to be reliable, disposable and cost-effective. The Air Force will continue testing the device over the next several months. ...

Fragment of yellow fever virus may hold key to safer vaccine

...olecular studies of the human antibody response to yellow fever, Howard Hughes Medical Institute (HHMI) rese...off infection. To protect people from the disease, yellow fever vaccines must contain this essential fragment of instruction to the immune system, said ter Me...

Scientists show that tick-borne flaviviruses use a novel mechanism to evade host defenses

...ch cause such serious diseases as West Nile fever, yellow fever and forms of encephalitis, evade immune syst...squito-borne flaviviruses include West Nile virus, yellow fever virus, dengue virus and Japanese encephalitis virus; the less-familiar tick-borne flaviviruses...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

... the center of a computer screen by showing them a yellow square. The subjects would then be shown either an...disappear and to the left or right on the screen a yellow square would flash. The researchers used a magnetic coil technique to measure with high accuracy an...

Quick identification needed to save Florida's citrus industry from devastating disease

... means "yellow dragon" which is descriptive of the yellow sectors of infected trees. The symptoms of citrus greening usually include a blotchy mottle and leaf yellowing that spreads throughout the tree with lopsided fruit that fail to color properly. Citrus greening has seriously affected citrus production...

Techniques available to detect soil that inhibits destructive soybean pest

... the adult female ages, she fills with eggs, turns yellow and then brown to become the nematode cyst. At tha...ssively lower yields and the worst cases result in yellow and stunted soybean plants. Plants with severe, visible damage can occur in patches in highly infest...

Color perception is not in the eye of the beholder: It's in the brain

...une the color of a disk of light to produce a pure yellow light that was neither reddish yellow nor greenish yellow. Everyone selected nearly the same wavelength of yellow, showing an obvious cons...

Protein behind autumn color splendor identified

...ppear from the leaves of plants. This reveals the yellow and red pigments that bring us the explosion of colors we now have in store. A research team at Ume's Plant Science Center (UPSC) has now identified a protein that helps bring out the color splendor of plants in the fall. The research team's findin...

Anti-cancer Compound In Beer Gaining Interest

...s actually first discovered in 1913, isolated as a yellow substance found in hops. Researchers started studying its molecular structure in the 1950s, but for decades the only people who showed any real interest in it were brewers, who were trying to learn more about how hops help impart flavor to beer. In ...

GROWing the next generation of water recycling plants

...erial College. The other plant species include the yellow flag iris, marsh marigold, and the common reed. They are chosen to be resistant to the pollutants they absorb. By planting more than one species, the engineers guard against an unusually dirty batch of water exceeding a particular species' tolerance ...

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