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Eats in Biological News

Surprising symbiosis: Glassy-winged sharpshooter eats with friends

Like a celebrity living on mineral water, the glassy-winged sharpshooter consumes only the dilute sap of woody plants--including grapevines in California, which is feverishly working to prevent the insect's flight into prized vineyards. Now, in a surprising study published in the June 6 issue of...

History of human cannibalism eats away at researchers

In a new study published by the journal Genome Research , a team of scientists reports that 'mad cow'-like diseases have not been a major force in human history, nor have been cannibalistic rituals that are known to be associated with disease transmission. Prof. Jaume Bertranpetit, a scientist at...

Solution to Pollution: New Bacteria Eats Toxic Waste

Utah State University researchers recently discovered a new bacteria that is a natural cleanser for contaminated soil. The bacteria, now being used around the world, is an inexpensive and highly effective solution to pollution. “This project shows mother nature’s capability to be a master engine...

Freshwater fish at the top of the food chain evolve more slowly

...n introduced into lakes, rivers and streams worldwide. This group of fishes eats a wide range of aquatic animals, says first author David Collar. "There's a...ents onto the centrarchid family tree together with data on what each fish eats the researchers were able to reconstruct how diet and head shape have chan...

Gutsy germs succumb to baby broccoli

... in 1992, his team discovered the health-promoting properties of sulforaphane. A longtime proponent of cancer prevention and chemoprotection, Talalay eats fresh broccoli sprouts regularly, as does Fahey. "I like them," Fahey says. "I eat them all the time, but not every day. Variety is the spice of ...

Aussie meat ants may be invasive cane toad's Achilles' heel

...ads through tropical Australia has created major ecological problems. The ideal way to control toad numbers would be to find a predator that kills and eats toads but leaves native frogs alone. However, bringing in a predator from overseas might have catastrophic consequences, like those that occurred when...

Montana State team finds Yellowstone alga that detoxifies arsenic

... these conditions. Indeed, there are challenges for the researchers. McDermott said the acid in the soil and water are strong enough that it sometimes eats holes through his jeans when he kneels to collect samples. McDermott has worked in Yellowstone for more than a decade and travels year-round to the...

Metastatic bone disease patients can walk in Lazarus' footsteps

...ze or travel to the bone. These metastases can become widespread throughout the skeletal system. Some bone metastases become painful because the tumor eats away at the bone (ostelolysis), creating holes that make the bone thin and weak. As the bones are replaced with tumor, nerve endings in and around the...

Host shift triggers cascading effect on ecosystem, research finds

... soil. The parasitic wasp D. alloeum lays its eggs directly into the larva of the apple maggot as it feeds inside the fruit. The developing wasp eats the maggot and emerges the following year from its pupa. ...

Eating less may not extend life

...Sohal and his colleagues came to a deceptively simple conclusion: Caloric restriction is only useful when, as in the case of the obese mice, an animal eats more than it can burn off. "Your energy expenditure and your energy intake should be in balance," Sohal said. "It's as simple as that. And how do y...

Call Stephen Michnick a gene grammarian

...Michnick says. "Control of genes is subject to both inherited and environmental factors, so that genes may be read differently and up to what a person eats or even what their grandmother ate." ...

Novel fungus helps beetles to digest hard wood

..., they first fed pin oak wood to Asian longhorned beetles. Next they fed ponderosa pine wood to the Pacific dampwood termite, an insect that typically eats only dead wood. Chemical analyses of feces from the two bugs indicated that they are able to alter the chemical structure of lignin by selectively...

Cataloguing invisible life: Microbe genome emerges from lake sediment

... organisms. Researchers then were able to piece together carbon-13 DNA fragments to create one entire genome for Methylotenera mobilis, a microbe that eats methylamine, a form of ammonia. (This microbe was already known, though the team did not use that knowledge to create the sequence.) They also produce...

Limiting fructose may boost weight loss, UT Southwestern researcher reports

... of a study appearing in a current issue of the Journal of Nutrition , said her team's findings suggest that the right type of carbohydrates a person eats may be just as important in weight control as the number of calories a person eats. Current health guidelines suggest that limiting processed carbo...

Scientists learn how food affects the brain

... diet," said Gmez-Pinilla, who was born and raised in salmon-rich Chile and eats salmon three times a week, along with a balanced diet. "Omega-3 fatty acids...nd fast food negatively affect the brain's synapses, said Gmez-Pinilla, who eats fast food less often since conducting this research. Brain synapses and sev...

Mouse study: When it comes to living longer, it's better to go hungry than go running

... York. The study built upon previous studies that showed: Rats that exercise regularly will, on average, live longer compared to a group that eats the same amount but does not exercise. This is because exercise prevents some diseases, which allows more individual animals to live out their expecte...

Researchers develop new ultrasensitive assay to detect most poisonous substance known

...ridium botulinum. When ingested, the toxin disables nerve function and can result in paralysis and even death. Botulism normally results when a person eats food tainted with C. botulinum bacteria or if a wound is infected by the bacterium. Infants, whose digestive systems are not yet fully developed, also...

UCR-led research team uses tiny wasp to wipe out major agricultural pest in Tahiti

...inged sharpshooter eggs by drilling a tiny hole in the egg through which the parasite lays its own egg. The wasp larva that hatches from the egg then eats the inside of the glassy-winged sharpshooter egg, killing it. The wasp larva completes its development inside the host egg and then emerges as a tiny ...

Predicting the perfect predator

...ide variety of plants. Davis said that there are different strategies for biological control. One strategy is inundative in which the control agent eats its way through the garlic mustard and then dies out itself because there isnt anything left to support it. The other strategy is to introduce a natur...

Photo-monitoring whale sharks

...ark (Rhincodon typus) its name. Known as the gentle giant for its non-predatory behavior, this fish, with its broad, flattened head and minute teeth, eats tiny zooplankton, sieving them through a fine mesh of gill-rakers. Listed as a rare species, relatively little is known about whale sharks, which liv...

Too much fructose could leave dieters sugar shocked

...s one tip for how to eat at the holidays: Dont take your cues from Santa. The sugary cookies and fat-laden fruitcakes the mythical North Pole resident eats are a no-no. But you dont have to go no-carb to stay fit at the holidays, either, University of Florida researchers say. In fact, many dieters may...

International team compares 12 fruit fly genomes

...kely the ones that have adapted themselves due to environmental pressures and sexual selection. For example, one specialist fruit fly, D. sechellia , eats only one type of fruit and is losing taste receptors five times faster than other fruit fly species that eat a wider range of foods. Clark said there...

Carnegie Mellon researchers to develop new drug delivery system

...Once the brain has healed from the initial implant of the encapsulated stem cells, the stem cells are genetically engineered to produce an enzyme that eats the microcapsule, freeing the neural stem cells. The stem cells can then migrate deep into the surrounding brain tissue where they provide the missing...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

... "C. botulinum takes the opposite approach. It lies in wait and, if it gets the opportunity, it hits its host with a microbial sledgehammer. It then eats the remains and lays low until the next host comes along." The genome sequence is peppered with genes that produce enzymes to digest proteins and...

Vaccine prevents prion disease in mice

...hich include scrapie, mad cow disease, and chronic wasting disease, are fatal and there is no treatment or cure. The disease spreads when an animal eats the body parts of other animals contaminated with prions. The disease causes dementia and abnormal limb movements. Prion is a protein that is al...

Rewarding fat rats

... food reward, Shizgal's team investigated the role of leptin, a hormone that the body produces in proportion to the amount of stored fat. A person who eats a lot during holidays, for example, will make more leptin than a person who sticks to a stricter diet. In work carried out by Shizgal's team, ch...

One-dimensional diffusion accelerates molecular motors

...m" strategy is surprisingly efficient and successful. It allows MCAK to localize microtubule ends very quickly. Howard says, "when it gets there, MCAK eats like a Pacman into the end of the microtubule." The chromosome halves follow this movement and are this way accurately distributed on the daughter cel...

Single cell amoeba increases MRSA numbers 1000- fold

... this discovery has implications for the infection control strategies adopted by hospitals. The single cell amoeba, Acanthamoeba polyphagam commonly eats and digests environmental bacteria. It also engulfs pathogens such as MRSA. However, instead of being digested by the amoeba, MRSA survives and replic...

Next good dinosaur news likely to come from small packages

...ecular level ?life that existed thousands of years ago. Ostrom's work has spanned from examining organic matter in meteorites to reconstructing who eats who in the food web from the tropics to the arctic. The trail is laid by stubbornly durable molecules. She uses mass spectrometry, an analytical techn...

New class of antibiotics effective against drug-resistant bacteria discovered in fungi

... What happened to the chicken when she crossed the road is less important that what happens to what she eats when it is used as fertilizer. Organic arsenic is fed to poultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is...

Geoscientists follow arsenic from chicken feed to streambeds

... What happened to the chicken when she crossed the road is less important that what happens to what she eats when it is used as fertilizer. Organic arsenic is fed to poultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is...

Pillows - a hot bed of fungal spores

... in showers were also found. Professor Ashley Woodcock who led the research said: "We know that pillows are inhabited by the house dust mite which eats fungi, and one theory is that the fungi are in turn using the house dust mites' faeces as a major source of nitrogen and nutrition (along with human s...

Enzyme affects hypertension by controlling salt levels in body

...ng blood volume and leading to hypertension. If less than 99 percent is absorbed, low blood pressure develops. Dr. Huang said that not everyone who eats too much salt ends up with hypertension, but some population groups, such as African-Americans, are more prone to develop salt-sensitive high blood pr...

A vaccine to kill tapeworm

...disease. While humans are the main host for T. solium, pigs are the intermediate host, and an essential step in the tapeworm's life cycle. If a pig eats the eggs then, as in humans, the eggs hatch in the intestine, burrow through the gut wall and travel to muscles, where they form cysticerci. The infec...

Why do aneurysms form? New studies suggest leading role for white blood cells

...ng happens to damage elastin fibers in the blood vessel wall and, for some reason, the immune system's normal healing response doesn't work. Something eats away at smooth muscle cells in the wall of the aorta until it starts to fall apart." Researchers have found that AAAs appear to be associated with ...

It's electric: Cows show promise as powerplants

...rs extracted rumen fluid from a living cow. The rumen is essentially a fermentation vat crawling with microorganisms where much of the food that a cow eats is temporarily held and is continuously churned until it can be completely digested. This liquid mass is what scientists call rumen fluid. The rese...

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...the cows in a field and seeing that the field has more grass in it--not because you made the grass grow better, but because you killed everything that eats grass," he said. Previous research had found that the lethal ingredient in Roundup® was not the herbicide itself, glyphosate, but rather the surfac...

Active Vaccine Prevents Mice From Developing Prion Disease

...s say it will be easier to apply in animals in the wild, which are at risk for developing prion disease. Prion disease is contracted when an animal eats the body parts of other animals contaminated with prions. What makes these infectious particles unusual is that they are proteins that have the same a...
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