Tag: "orange" at biology news

Researchers find color sensitive atomic switch in bacteria

... our visual pigments, is controlled by blue versus orange photon absorption." Spudich said. That function makes the protein unusual among its family of light-sensing proteins known as rhodopsins, which are present in microbes and higher animals. In human eyes, rhodopsin is the light-absorbing pigment of ...

Key cell-death step found

... Nunnari said. A mitochondrion looks a bit like an orange -- an outer membrane, analogous to the orange peel, contains it, while a different type of membrane on the inside facilitates the mitochondria's f...

Hunt for a new plant hormone points to carotenoids

...tenoids, such as the chemicals responsible for the orange pigment in carrots. This suggests that the new hormone is a carotenoid derivative, and this will help in the hunt for its identity....

LSU researcher discovers new bird

...ve back, wings and tail that contrast with a burnt orange crown. For now, the specimen is in the keeping of the National Museum in Lima where it will become the "type," the specimen on which the species' description is based and against which all others will be compared. Eventually, it will be sent to Lane ...

Summer in the South: Kudzu and oriental bittersweet

...States from Southeast Asia around 1860. The bright orange berries produced in the fall have made oriental bittersweet popular for wreaths and winter flower arrangements, but the pretty vine wreaks havoc on the trees and native plants of the Southern Appalachian forest. Studies by Southern Research Station s...

Infusion of two peptides acts to accelerate appetite satisfaction

...ed a lunch of ham sandwiches, chocolate mousse and orange juice. After the start of the perfusion, subjects scored their subjective feelings for hunger and fullness at 15-min intervals for the duration of each experiment using a visual analogue scale from 1 through 10 and indicated their scores on a questio...

The UV advantage

...d require drinking 10 glasses of milk or fortified orange juice every day or eat fatty fish in the amounts that would satisfy the body's nutritional requirements. "Consumers should be knowledgeable about the potential risk of skin cancer," he notes, "but the fact is that fewer than half of one percent of th...

Orange, tangerine peels could be better than drugs for lowering cholesterol

...any, identified a class of compounds isolated from orange and tangerine peels that shows promise in animal s...erson would have to drink 20 or more cups a day of orange or tangerine juice to have a therapeutic effect, Kurowska estimates. KGK Synergize already has deve...

1,136 scientists call for protection of deep-sea corals

...the seafloor to catch species such as shrimp, cod, orange roughy, armorhead, grenadier and Chilean seabass. Trawls smash corals and sponges and rip them from the seafloor. "It's ironic that billions are being spent searching for water that might once have supported life on Mars while we're destroying the ...

Major mutations, not many small changes, might lead way to new species

...rs were actually shunned by bees, probably because orange is in the spectrum of light they don't see. In another alteration as part of the experiment, M. cardinalis, usually favored by hummingbirds, responded with petals that were dark pink rather than deep red. These flowers appealed equally to hummingbir...

Research sheds new light on evolution

...ew' pollinator," Schemske said. "Specifically, the orange flowers produced on the previously pink flowered and bee-pollinated M. lewisii were regularly visited by hummingbirds but shunned by bees. "Also, the pink flowers of the previously hummingbird-pollinated M. cardinalis were attractive to both bees and...

November science picks!

...e: Even the majestic white birds with their bright orange bills, black-tipped wings, and wingspans of 55 to 70 inches that Lewis and Clark observed in North Dakota are falling victim to the virus as it moves west. The USGS National Wildlife Health Center, in Madison, Wisc., confirms that West Nile Virus cau...

Fruits offer powerful protection from skin cancer

... in tart cherries, mint and citrus fruits, such as orange peel. Evidence has shown that this class can inhibit the growth of many cancers and pre-cancerous lesions by helping rid the body of cancer-causing chemicals or by interfering with signals that cause rapid cell division. Researchers in this study d...

NIH told regular and moderate exposure to sunlight is the key to preventing chronic disease

...ink the equivalent of 10 days of fortified milk or orange juice every day. Only regular and moderate exposure to sunlight fulfills the body's needs. We ought not to be like the groundhog that is afraid to cast a shadow on a sunny day. We need a national public health information and education campaign t...

Trawlers threaten ocean's biodiversity

...amounts, home to highly marketable species such as orange roughy, alfonsino and deep-water redfish. Trawlers are often the first to discover seamounts, which they target using sophisticated sonar equipment. But bottom-trawling nets can do immense damage within a year or two. Studies in the Tasman Sea show ...

Genetically modified E. coli produce plant product used in foods and cosmetics, Science study says

...ng bixin, also known as annatto and used to add an orange touch to microwave popcorn and some cheeses, may a...conomically important plant product used to add an orange touch to microwave popcorn and some cheeses, and texture and color to a variety of creams and cosmet...

Cooperation between unrelated male lizards adds a new wrinkle to evolutionary theory

...llow sneakers, but lose out in confrontations with orange usurpers. In previous papers, Sinervo has describe...ies as a kind of "rock-paper-scissors" game, where orange defeats blue, blue defeats yellow, and yellow defeats orange. The result is an evolutionarily stable...

UC Riverside scientists contribute to study that unveils genome sequence of bread mold

...y metabolites. Neurospora , commonly known as the orange bread mold, was first described during an infestation of French bakeries in 1843. Domesticated as an experimental organism in the 1920s, Neurospora has been an important model system from that time until today. " Neurospora is extremely tractab...

Maine chemist wins national award for research and mentoring

...best recognized as the compounds that make carrots orange or comprise Vitamin A. His interest, however, is their role in photosynthesis, the process by which plants turn light into chemical energy. "It turns out that carotenoids catch light that chlorophyll misses and then pass along their energy to chlorop...

From da Vinci to Monet: Understanding how artists can manipulate the human visual system

... sky. To the naked eye, in Impression: Sunrise, an orange sun deceives the senses and appears to shift and flicker in the middle of a dark blue sky. The sun is really, in fact, just as bright (or dull, depending on your perspective) as its surrounding sky. Although it certainly stands out as the focal point...

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