Researchers at Berkeley Lab and Michigan State University (MSU), led by Corie Ralston and Cheryl Kerfeld, performed X-ray footprinting mass spectrometry (XFMS) experiments at the Advanced Light Source (ALS) beamline 5.3.1, which revealed new mechanistic details of the key events in orange carotenoid protein (OCP) photoprotection. XFMS is ideally suited to probing conformational dynamics at the single residue level, providing both a spatial and temporal view of site-specific changes in the OCP and its interaction with the fluorescence recovery protein (FRP). The experiments showed that FRP provides an extended binding region that holds the OCP together and forces proximity of the two domains that accelerate relaxation of OCP to its native state.
Pam Ronald Elected to National Academy of Sciences
Pam Ronald, faculty scientist in EGSB and scientific lead of plant pathology at the Joint BioEnergy Institute (JBEI), was elected to the National Academy of Sciences in recognition of her distinguished and continuing achievements in original research. She joins 100 scientists and engineers from the U.S. and 25 from across the world as new lifelong members and foreign associates.
Regulation of Algal Photosynthesis and Metabolism
The unicellular green alga Chromochloris zofingiensis has the ability to shift metabolic modes from photoautotrophic (synthesizing food using light as energy source) to heterotrophic (obtaining food and energy from exogenous sources) in response to carbon source availability in the light. It also has the capacity—under certain conditions—to produce high amounts of commercially relevant bioproducts: notably, the ketocarotenoid astaxanthin, used in feed, cosmetics, and as a nutraceutical, and triacylglycerol (TAG) biofuel precursors.
Understanding how photosynthesis and metabolism are regulated in algae could, via bioengineering, enable scientists to reroute metabolism toward beneficial bioproducts for energy, food, and human health. To that end, Berkeley Lab Biosciences researchers used C. zofingiensis as a simple algal model system to investigate conserved eukaryotic sugar responses, as well as mechanisms of thylakoid breakdown and biogenesis in chloroplasts.
Bright Skies for Plant-Based Jet Fuels
With an estimated daily fuel demand of more than 5 million barrels per day, the global aviation sector is incredibly energy-intensive and almost entirely reliant on petroleum-based fuels. Unlike other energy sectors such as ground transportation or residential and commercial buildings, the aviation industry can’t easily shift to renewable energy sources using existing technologies.
However, a new analysis by scientists affiliated with Berkeley Lab’s Biosciences and the Energy Technologies Areas shows that sustainable plant-based bio-jet fuels could provide a competitive alternative to conventional petroleum fuels if current development and scale-up initiatives continue to push ahead successfully.
Biosciences Area Cohosts Conference on Growing the Circular Bioeconomy
The Biosciences Area recently joined the California Air Resources Board, UC Berkeley, and UC’s Division of Agriculture and Natural Resources in co-hosting the California Bioresources Economy Summit, aimed at harnessing biotechnology to convert California waste streams from farms, forests, and landfills into valuable low-carbon fuels and products.
Associate Laboratory Director for Biosciences Mary Maxon keynoted the two-day conference as it kicked off January 29 at the David Brower Center in Berkeley. In her presentation, Maxon noted that expansion of the $370 billion per year U.S. bioeconomy could create more than 1 million jobs while reducing annual carbon emissions by up to 450 million tons.
- « Previous Page
- 1
- …
- 15
- 16
- 17
- 18
- 19
- …
- 37
- Next Page »
Was this page useful?
Send
