A small cicada-like insect called the Asian citrus psyllid (Diaphorina citri) threatens the world's citrus industries, transmitting an incurable and lethal citrus disease. This notorious pest harbors two bacterial species within cells specially prepared for the purpose of symbiosis. Whereas thes... Read More
Scientists are reporting progress in the search for the first broad-spectrum drugs to combat human rhinoviruses (HRVs), which cause humanity’s most common infectious diseases. Their study on these potential drugs for infections that include the common cold appears in the journal ACS Medicinal Ch... Read More
A brighter, better, longer-lasting dental implant may soon be on its way to your dentist's office. Dental implants are posts, usually made of titanium, that are surgically placed into the jawbone and topped with artificial teeth. More than dentures or bridges, implants mimic the look and feel of... Read More
Purple bacteria contain pigments that allow them to use sunlight as their source of energy, hence their color. Small as they are, these microbes can teach us a lot about life on Earth, because they have been around longer than most other organisms on the planet. University of Miami (UM) physicis... Read More
For the first time the complex interplay between bacterial investment strategies and their outcomes has been recreated and analysed by researchers at the University of Sydney and University of Exeter.
The study is published today in the journal Ecology Letters.
Co-author Dr Tom Ferenci fro... Read More
Endangered Amur tigers (also called Siberian tigers) face challenges from poaching, decimation of their prey base, and habitat fragmentation, but a disease from domestic dogs may be the straw that broke the tiger's back, according to the authors of a study in mBio this week. A team of scientists... Read More
Depending upon whom you ask, the smell that has plagued La Jolla Cove has been “putrid,” “noxious” or “like the East River used to smell,” for quite a while. Nose-pinching is commonplace.
But now, the stench of bird guano emanating from the cliffs in the seaside neighborhood has become, off... Read More
Researchers are gathering this week to debate the most humane methods of dispatching lab animals, which are primarily rodents. Killing research animals is one of the most unpleasant tasks in science, and it is imperative to do it as humanely as possible. But researchers who study animal welfare... Read More
The U.S. Food and Drug Administration today approved the first adjuvanted vaccine for the prevention of H5N1 influenza, commonly known as avian or bird flu. The vaccine, Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, is for use in people 18 years of age and older who are at increased r... Read More
Amidst the outrage, puzzlement and theories caused by the finding of genetically-modified wheat in an Oregon field, USDA is considering whether to commercialize another dinnertime staple–the potato.
Last month, Idaho-based J.M. Simplot asked the Agriculture Department to grant a deregulated s... Read More
The word 'unnatural' is often used to describe what's considered weird or unusual. But is anything weirder than nature?
Just look at 17-year cicadas, poised to flood the U.S. East Coast after having stayed underground since Bill Clinton was President. And cicadas are just the start: Biology a... Read More
Insects are repelled by N,N-diethyl-m-toluamide, also known as DEET. But exactly which olfactory receptors insects use to sense DEET has eluded scientists for long.
Now researchers at the University of California, Riverside have identified these DEET-detecting olfactory receptors that cause ... Read More
When a new strain of bird flu cropped up in China last winter, the billion-dollar question was whether the deadly virus could transmit between people.
Now, Chinese scientists offer the first clear evidence that the bird flu is indeed contagious, although only slightly.
A father, who became... Read More
Researchers report the detection of a strain of Seoul hantavirus (SEOV) in pet rats in England and Wales. The discovery followed an investigation of a case of haemorrhagic fever with renal syndrome in Wales. Hantavirus RNA was detected via real-time reverse transcription-polymerase chain reactio... Read More
Nguyen Thi Yen rolls up the sleeves of her white lab coat and delicately slips her arms into a box covered by a sheath of mesh netting. Immediately, the feeding frenzy begins.
Hundreds of mosquitoes light on her thin forearms and swarm her manicured fingers. They spit, bite and suck until bec... Read More
After taking an in-depth look at the basic biology of a fungus that is decimating bat colonies as it spreads across the U.S., researchers report that they can find little that might stop the organism from spreading further and persisting indefinitely in bat caves.
Their report appears in the ... Read More
On 4 July, good news arrived in the inbox of Ocorrafoo Cobange, a biologist at the Wassee Institute of Medicine in Asmara. It was the official letter of acceptance for a paper he had submitted 2 months earlier to the Journal of Natural Pharmaceuticals, describing the anticancer properties of a c... Read More
Biologists dissected tissue samples from an oarfish carcass found in California and discovered the creature was hosting quite a few parasites.
“Our findings say that these are actually majorly parasitized fish,” says Armand Kuris, professor of zoology at the University of California, Santa Ba... Read More
When cells grow and proliferate, they need to produce large amounts of protein. All this protein is made by ribosomes, therefore rapid growth requires many ribosomes. Because ribosomes are expensive machines for the cell, the cell needs to use them efficiently. In a new study, published in PNAS,... Read More
New research shows giant pandas have a stronger immune system than previously known, because the panda immune system develops different antigens depending on where it lives.
This genetic diversity is a natural defense against extinction, because it means a single pathogen cannot wipe out the ... Read More