Biochemist Daniel Gallie of UC Riverside. (Photo credit: Steve Walag.)
Biochemist Daniel R. Gallie at the University of California, Riverside and his research team of Zhong Chen, Todd Young, Jun Ling, and Su-Chih Chang report in the March 18, 2003, issue of the Proceedings of the National Academy of Sciences (PNAS) that they have developed technology that increases the amount of vitamin C in plants, including grains, by increasing the amount of the enzyme that is responsible for recycling vitamin C. "The ability to increase the level of vitamin C in plant food will enhance their nutritive value," said Gallie, who is professor of biochemistry. The research was funded by the U.S. Department of Agriculture and the University of California Agricultural Experiment Station over the last 5 years.
Vitamin C, or ascorbic acid, is essential to prevent diseases, such as scurvy, that affect the connective tissue. It also improves cardiovascular and immune cell function and is used to regenerate vitamin E. In contrast to most animals, humans cannot make vitamin C and it must, therefore, be obtained regularly from dietary sources. Vitamin C is present at high levels in some fruits such as citrus and some green leafy vegetables, but present in low levels in those crops most important to humans such as grains.
"Once used, vitamin C can be regenerated by the enzyme dehydroascorbate reductase or DHAR," explained Gallie. "Through this means, plants recycle the vitamin so that it can be used repeatedly. If vitamin C is not salvaged by DHAR, it is quickly lost."
Iqbal Pittalwala | UC Riverside
Fine organic particles in the atmosphere are more often solid glass beads than liquid oil droplets
21.04.2017 | Max-Planck-Institut für Chemie
Study overturns seminal research about the developing nervous system
21.04.2017 | University of California - Los Angeles Health Sciences
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy