The single-celled parasite Entamoeba histolytica infects 50 million people each year, killing nearly 70,000. Usually, this wily, shape-shifting amoeba causes nothing worse than diarrhea. But sometimes it triggers severe, even fatal disease by chewing ulcers in the colon, liquefying parts of the liver and invading the brain and lungs.
Three faculty affiliated with the College of Biological Sciences are among the eight UC Davis faculty newly elected as fellows of the American Association for the Advancement of Science, announced March 27. They are: Frédéric Chédin, a professor and chair in the Department of Molecular and Cellular Biology; Dario Cantù, a professor in the Department of Viticulture and Enology; and Huaijun Zhou, a professor in the Department of Animal Science.
Meet the eight faculty members who comprise the newest class of Chancellor’s Fellows, given to early career academics doing exemplary work in their fields. One of the new fellows, Kassandra Ori-McKenney, is a an associate professor in the Department of Molecular and Cellular Biology, and four others are affiliated with the college's interdisciplinary graduate groups.
A single set of genetic instructions produces thousands of structures in our bodies – from nerve cells that branch like gnarled oak trees, to osteoblast cells that sculpt minerals into bone. It begins with the delicate formation of sperm and eggs – which ignite the miraculous unfurling of an entire body from a single cell.
For this to happen, DNA must be precisely folded and coiled into the sperm and egg cells – creating a structure that coordinates thousands of genes, says Satoshi Namekawa, a professor of microbiology and molecular genetics.
A battle around the world is raging between plants and the changing environment, and UC Davis researchers are on the front lines.
For example, the microbes are constantly creating new types of illnesses, while the plants — sometimes with the help of breeders — are developing new immunities.
It’s something plant geneticist Luca Comai, Ph.D. ’80, a distinguished professor of plant biology, has seen firsthand through his decades of research into plant chromosomes.
The development of maternal egg cells is pivotal for survival – but also precarious. During meiosis, the DNA-containing chromosomes can easily be broken or lost, causing infertility, miscarriage, or genetic disorders. Scientists have struggled to study these crucial cellular events in humans and other mammals.
Rice is a staple food crop for more than half the world’s population, but most farmers don’t grow high-yielding varieties because the seeds are too expensive. Researchers from the University of California’s Davis and Berkeley campuses have identified a potential solution: activating two genes in rice egg cells that trigger their development into embryos without the need for fertilization, which would efficiently create high-yielding clonal strains of rice and other crops.
Wolf Dietrich-Heyer, a Distinguished Professor and chair in the Department of Microbiology and Molecular Genetics was among three members of the UC Davis community recognized for their remarkable efforts to steward donors and raise the culture of philanthropy across the university.
The Office of Development and Alumni Relations and the UC Davis Foundation presented the 2024 Faculty and Staff Stewardship Awards during a ceremony on Oct. 19. The recipients are:
Sam Arcement—Director of Graduate Academic Programs for the College of Biological Sciences, and the program coordinator for the Molecular, Cellular, and Integrative Physiology (MCIP) Graduate Group—has been honored with the 2024 Outstanding Graduate Program Coordinator Award from the Office of Graduate Studies. This year saw a record number of nominations. “Sam tirelessly ensures that our needs and concerns are heard and addressed,” said one MCIP student, who praised Arcement’s dedication to student advocacy.
You have likely not spent much time thinking about the uterus of the fruit fly, Drosophila melanogaster. But then, neither have most scientists, even though Drosophila is one of the most thoroughly studied lab animals. Now a team of biologists at the University of California, Davis, has taken the first deep look at the Drosophila uterus and found some surprises, which could have implications not just for understanding insect reproduction and potentially, pest control, but also for understanding fertility in humans.
