The western honey bee (Apis mellifera), the world’s most important pollinator for agriculture, is facing a crisis. Parasitic mites, colony collapse and climate change threaten hives. California, as the seasonal home of nearly half of the continental United States’ managed honey bee colonies, is a prime location for monitoring bee populations. And honey bee health, key to the nation’s largest fresh produce economy, is vital to the Golden State.
A foraging honeybee. Photo by Kathy Keatley Garvey.
Mike Gil is used to spreading the word about his love of science through his nonprofit sciall.org and its YouTube channel, but he’s about to get a bigger audience. His TED Talk, recorded last summer, was posted today on TED’s main channel. Only a fraction of talks given at TED conferences are posted to the main website, which has millions of subscribers.
“Who here is fascinated by life under the sea?” he asked the audience in his opening line. All hands go up.
Within every cell is a transportation system that rivals our most complex roadways and interchanges. Known collectively as the cytoskeleton, this system is used by molecular machines called motor proteins to transport cargo throughout the cell. It’s also essential to the vital process of cell division.
Image of the mitotic spindle in a human cell showing microtubules in green, chromosomes (DNA) in blue, and kinetochores in red. (Wikimedia Commons)
The U.S. Centers for Disease Control and Prevention (CDC) released a media statement in late December profiling a multi-state outbreak of food poisoning caused by the bacteria E. coli O157:H7 with 17 reported illnesses. Romaine and leafy greens are among the suspected sources of contamination, but no definitive source or location has been confirmed at this time, according to the CDC.
A lettuce field in California (photo by Trevor Suslow, UC Davis)
Hydra, which measure just millimeters in length, are studied by biologists for their regenerative capabilities and uncharacteristic longevity. Stefan Siebert/Juliano Lab
The hydra is a small freshwater invertebrate named after the fearsome monster of Greek mythology that grew two new heads for each one cut off. Now the real hydra’s ability to regrow pieces of itself is attracting growing interest from regenerative biologists as this tiny, jellyfish-like creature may hold within its genomic code the key to biological immortality.
A recent meeting at UC Davis marked 20 years of effort towards a vaccine for HIV/AIDS. When the Targeted Action Group on Vaccines was founded twenty years ago, the HIV epidemic was in a very different place – politically, socially, scientifically, and emotionally. Known as TAG, this program has brought together researchers, students, advocates, and industry, who are invested in and working towards an HIV vaccine.
What does the future of plant biology education and research look like? That’s the question on the mind of Siobhan Brady, associate professor of plant biology at UC Davis.
Big data approaches will be key to advances in plant biology, so students need to be trained in these areas. Unknown author/Wikipedia (CC BY 2.5)
In a Plant Physiology commentary paper, Brady, along with 37 other plant biologists from around the world, call for universities to integrate more quantitative and computational techniques into biology-oriented academic curricula. Introducing these skills early, the group advises, will help prepare tomorrow’s plant biologists for the next era of genomics research.
UC Davis microbiologists have analyzed swabs taken by astronauts on the International Space Station – and found pretty much the same types of microbes as in a home on Earth, according to an analysis published today (Dec. 5) in the journal PeerJ.
The International Space Station is interesting to scientists studying the microbial ecology of buildings because it is a “building” with very few ways to bring microbes in or out.
Citizen science and Project MERCURRI
The work was part of Project MERCCURI, a collaboration between UC Davis and other organizations including Science Cheerleader, a group of current and former professional cheerleaders pursuing careers in science and math.
From improving crop production to tracking mosquitoes, the Stable Isotope Facility in the UC Davis Department of Plant Sciences supports a wide range of research on campus and throughout the world. December 1, 2017 marks the facility’s 20th anniversary and they are holding an open house today to celebrate.
Julian Herszage (left) and Lyndi Low carrying out analysis at the Stable Isotope Facility in the Department of Plant Sciences. The lab carries out analysis of isotopes of hydrogen, carbon, nitrogen, oxygen and sulfur for biological and environmental studies. Photo by Chris Yarnes/UC Davis.
Why study the brains of birds? Do birds even have brains worth talking about? In fact, birds can show complex behavior and mental function. We can learn a lot from studying the neuroscience of birds — knowledge that we can relate to how human brains function in health and disease. In this video, Rebecca Calisi Rodriguez, assistant professor of neurobiology, physiology and behavior in the UC Davis College of Biological Sciences, introduces her own work on bird brains and talks to some prominent neuroscientists about their work.