Sunflowers famously turn their faces to follow the sun as it crosses the sky. But how do sunflowers “see” the sun to follow it? New work from plant biologists at the University of California, Davis, published Oct. 31 in PLOS Biology, shows that they use a different, novel mechanism from that previously thought.
“This was a total surprise for us,” said Stacey Harmer, professor of plant biology at UC Davis and senior author on the paper.
Cancer often starts with the reshuffling of DNA—akin to scrambling the pages of a dictionary. Exactly how this happens has long been a mystery. But researchers in the UC Davis College of Biological Sciences have now arrived at one promising explanation.
The problem seems to happen at a critical moment: when the cell is fixing a broken string of DNA. This repair process, called homologous recombination, can go awry, says Wolf-Dietrich Heyer, a Distinguished Professor and chair in the Department of Microbiology and Molecular Genetics.
Dan Starr, a cell biologist and professor in the Department of Molecular and Cellular Biology, has been named the new Associate Dean of Research for the College of Biological Sciences. He will step into the role on October 1, 2023.
“I see this position as an opportunity to encourage my colleagues to branch out and expand into new research areas,” said Starr. “Our research portfolio at CBS is already very strong. My goal is to build on our successes and to support future growth in our research programs.”
Beds of eelgrass (Zostera marina) form an important habitat in coastal regions throughout the northern hemisphere, crucial to many fish and other species and storing vast amounts of carbon. A new study published July 20 in Nature Plants shows that eelgrass spread around the world much more recently than previously thought, just under a quarter-million years ago. The results have implications for how eelgrass could be affected by a changing climate.
Birth defects related to chromosomal abnormalities often stem from exposure to chemicals early in the mother’s life. But determining which chemicals are at fault poses a serious challenge — akin to solving a hit-and-run case, decades after the fact. Two College of Biological Sciences researchers are developing a method that could identify harmful chemicals far more quickly, with the help of red- and green-glowing zebrafish.
An artificial intelligence model has successfully identified coronaviruses capable of infecting humans, out of the thousands of viruses that circulate in wild animals. The model, developed by a team of biologists, mathematicians and physicists at the University of California, Davis, could be used in surveillance for new pandemic threats. The work was published June 8 in Scientific Reports.
Each year, the College of Biological Sciences recognizes outstanding members of its faculty for significant efforts in the classroom and laboratory.
This year, Bruce Draper, a professor in the Department of Molecular and Cellular Biology who studies how germline stem cells are regulated and function in vertebrates, and Laci Gerhart, an assistant professor of teaching in the Department of Evolution and Ecology who teaches the ever-popular “Wild Davis” course, were recognized by their peers for their contributions to the college.
Using a specially designed capsule, researchers can now voyage through the digestive system, collecting new data about digestion and microorganisms. The work by a team including researchers at the University of California, Davis, Stanford University and Envivo Bio Inc., is published May 10 in papers in Nature and Nature Metabolism.
Three professors from the University of California, Davis, have been elected as members of the National Academy of Sciences. They are among 120 new members and 23 international members announced by the academy May 2. Members are elected in recognition of their contributions to original research. Membership in the academy is considered one of the highest honors a scientist can achieve.
The final round of the UC Davis Grad Slam had a flurry of PowerPoint slides, a giant deck of cards and a stuffed monkey, but in the end the top prize went to someone talking about genetic “ghosts.”
