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How bees naturally vaccinate their babies

When it comes to vaccinating their babies, bees don't have a choice -- they naturally immunize their offspring against specific diseases found in their environments. And now for the first time, scientists have discovered how they do it.

Researchers from Arizona State University, University of Helsinki, University of Jyväskylä and Norwegian University of Life Sciences made the discovery after studying a bee blood protein called vitellogenin. The scientists found that this protein plays a critical, but previously unknown role in providing bee babies protection against disease.

Cooking up altered states

Churning raw milk sufficiently creates butter. Squirting lemon juice coagulates it into curd. These two phenomena are not as straightforward as they sound on the molecular level.

When milk is churned, the fat molecules in it come closer to form aggregates. Lemon juice increases milk's acidity and creates similar molecular lumps. Yet butter and curd are not solids because in both cases, the aggregated molecules still maintain consistent distances from each other, behaving as if they are part of a liquid.

California 'rain debt' equal to average full year of precipitation

California's disastrous environmental management practices have crippled the state to such an extent that it would have to have rain for a full year to offset the "rain debt" accumulated.

Depressed females have over-active glutamate receptor gene

Numerous genes that regulate the activity of a neurotransmitter in the brain have been found to be abundant in brain tissue of depressed females. This could be an underlying cause of the higher incidence of suicide among women, according to research at the University of Illinois at Chicago.

Probiotics for frogs

In research that could lead to protective probiotics to fight the "chytrid" fungus that has been decimating amphibian populations worldwide, Jenifer Walke, PhD, a postdoctoral researcher at Virginia Tech University, Blacksburg, and her collaborators have grown bacterial species from the skin microbiome of four species of amphibians. The research appears July 10 in Applied and Environmental Microbiology, a journal of the American Society for Microbiology.

When surgeons listen to their preferred music, their stitches are better and faster

A new study from The University of Texas Medical Branch at Galveston shows that when plastic surgeons listen to music they prefer, their surgical technique and efficiency when closing incisions is improved. The study is currently available in the Aesthetic Surgery Journal.

Chimpanzees binge on clay to detox

Wild chimpanzees in the forests of Uganda are increasingly eating clay to supplement the minerals in their diet, according to a long-term study published in PLOS ONE. The paper led by the University of Oxford describes how the researchers observed wild chimpanzees in the Budongo forest eating and drinking from clay pits and termite mounds.

Genetically modified sugarcane grows at lower temperatures

U.S. farmers have long hoped to extend sugarcane's growing range northward from the Gulf coast, substantially increasing the land available for sugar and biofuels. Several hybrid canes developed in the 1980s have proved hardy in cooler climes, surviving overwinter as far north as Booneville, Arkansas. But until now, no one had tested whether these "miscanes," as they are called, actually photosynthesize, and thus continue to grow, when the thermometer dips.

Sleep makes our memories more accessible, study shows

Sleeping not only protects memories from being forgotten, it also makes them easier to access, according to new research from the University of Exeter and the Basque Centre for Cognition, Brain and Language. The findings suggest that after sleep we are more likely to recall facts which we could not remember while still awake.

In two situations where subjects forgot information over the course of 12 hours of wakefulness, a night's sleep was shown to promote access to memory traces that had initially been too weak to be retrieved.

Multi-meter sea level rise this century? That's not a consensus

There’s a new study that’s getting a fair amount of attention in the climate science community and the popular press.

Parasitic flatworms flout global biodiversity patterns

The odds of being attacked and castrated by a variety of parasitic flatworms increases for marine horn snails the farther they are found from the tropics. A Smithsonian-led research team discovered this exception to an otherwise globally observed pattern--usually biodiversity is greatest in the tropics and decreases toward the poles.

The study makes a case for using host-parasite relationships as a tool to understand why there are typically more species--and more interactions between species--in the tropics than anywhere else in the world.

RaxX and rice disease-resistance discovery

When disease-resistant rice is invaded by disease-causing bacteria, a small protein produced by the bacteria betrays the invader. Upon recognizing that protein, the rice plants sense that a microbial attack is underway and are able to mount an immune response to fend off bacterial infection, reports a research team led by the University of California, Davis.

Unlocking the rice immune system

A bacterial signal that when recognized by rice plants enables the plants to resist a devastating blight disease has been identified by a multi-national team of researchers led by scientists with the U.S. Department of Energy (DOE)'s Joint BioEnergy Institute (JBEI) and the University of California (UC) Davis.

Resolving the cancer/diet paradox

How much does diet affect the cancer patient? Do "antioxidants" really play an important role in health - or are they causing more cancers than they cure? And what exactly is the relationship between obesity and cancer?

The latest Special Issue in ecancermedicalscience collects four original articles from experts in cancer and metabolism, addressing the hottest areas of research in this rapidly developing field.

Kiwi bird genome sequenced

Its unusual biological characteristics make the flightless kiwi a unique kind of bird.