College of Biological Sciences Content

Christmas Trees’ Distinctive Aroma Helps Ward off Pathogens and Pests

Andy Fell — November 25, 2024 - 8:30am

Each year, nearly 30 million Americans purchase a real tree for the holidays. Growing the perfect Christmas tree takes about seven years, during which farmers need to keep insects, fungal pathogens and hungry deer at bay. While researchers suspect the distinctive piney smell the trees emit plays a role in deterring these pests, not all trees smell the same, and which chemical blends confer resistance is unclear.

Transparent Worms with Glowing Proteins May Help Fertility Treatments

Andy Fell — November 21, 2024 - 2:03pm

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 like Down syndrome. Scientists have struggled to study these crucial cellular events in humans and other mammals.

Making High-yielding Rice Affordable and Sustainable

Andy Fell — November 20, 2024 - 10:53am

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.

What Makes Queen Bees So Smart?

Andy Fell — November 07, 2024 - 2:22pm

A bumblebee’s brain is smaller than a sesame seed. But it can still accomplish quite a bit.

“You don’t need a big brain to learn well,” said Felicity Muth, an assistant professor in the Department of Neurobiology, Physiology and Behavior and a National Geographic Explorer who studies cognition in bees and other animals. “Bumblebees are capable of many of the same cognitive feats as many vertebrates.”

Can Corals Be Saved?

Andy Fell — November 04, 2024 - 4:13pm

It takes a strong constitution to be a coral researcher these days. These vibrant underwater ecosystems are beset by all manner of challenges in the 21st century, from bleaching events and pollution to storm surges and overfishing. But there’s good news on the way for coral conservation.

Invisible Anatomy in the Fruit Fly Uterus

Andy Fell — October 25, 2024 - 11:06am

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.

How Plants Become Bushy, or Not

Andy Fell — August 06, 2024 - 3:50pm

For many plants, more branches means more fruit. But what causes a plant to grow branches? New research from the University of California, Davis shows how plants break down the hormone strigolactone, which suppresses branching, to become more “bushy.” Understanding how strigolactone is regulated could have big implications for many crop plants.

The study was published August 1 in Nature Communications.

Plant Biologist Siobhan Brady Named HHMI Investigator

Andy Fell — July 23, 2024 - 12:11pm

Siobhan Brady, a professor in the Department of Plant Biology and Genome Center at the University of California, Davis, has been selected as a Howard Hughes Medical Institute (HHMI) Investigator. The prestigious Investigator program, which Brady describes as “life changing,” will provide her with roughly $9 million in research support over a seven-year term, with the option to renew.

Plant Biologist Venkatesan Sundaresan Wins 2024 Wolf Prize in Agriculture

Andy Fell — July 17, 2024 - 9:36am

Venkatesan Sundaresan, Distinguished Professor in the Departments of Plant Biology and Plant Sciences at the University of California, Davis, has been awarded a 2024 Wolf Prize in Agriculture for key discoveries on plant developmental biology of relevance to crop improvement.

‘Face to Face’: Graduating With Experience

Jose Antonio Vadi — June 25, 2024 - 10:00am

It’s the question every college student faces: How do my present actions support my future goals?

In the latest episode of Face to Face, Chancellor Gary S. May speaks with Julia Lee and Dustin Lower about their unique pathways towards graduating and the experiences that helped them make their next steps after graduation more tangible through on-campus resources.