HOME >> BIOLOGY >> NEWS
UC Riverside biochemists develop technology to increase Vitamin C in plants

RIVERSIDE, Calif. -- March 5, 2003 -- 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."

In the PNAS paper, the authors reason that increasing the amount of DHAR in plants might improve their ability to recycle vitamin C and thereby increase its amount. To examine this, the researchers introduced the gene encoding DHAR from wheat into corn to increase the amount of DHAR by up to 100-fold.

"We found that the increase in DHAR elevated the amount of vitamin C in grain and leaves of corn, showing that th
'"/>

Contact: Iqbal Pittalwala
iqbal@citrus.ucr.edu
909-787-2645
University of California - Riverside
5-Mar-2003


Page: 1 2 3

Related biology news :

1. Humans march to a faster genetic drummer than primates, UC Riverside research says
2. UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second
3. UC Riverside researchers discover new way to identify cell growth
4. UC Riverside professor to spend year with US State Department
5. UC Riverside researchers develop low-carb corn with enhanced protein and oil
6. UC Riverside researchers improve drought tolerance in plants
7. Plant sex protein identified at UC Riverside
8. UC Riverside researchers publish paper on botulism detection system
9. UC Riverside to convene conference on genetically modified organisms, Oct. 14-17, 2003
10. UC Riverside plant pathologist awarded $1 million grant to study virus assembly
11. UC Riverside study indicates mosquito coils may cause cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/14/2019)... ... January 14, 2019 , ... CellMax ... cancer cells in blood, will present new findings at the ASCO Gastrointestinal Cancer ... colorectal cancer. The results from this study show CellMax Life’s blood test, based ...
(Date:1/10/2019)... (PRWEB) , ... January 09, 2019 , ... Dr. Beanlands ... Heart Institute in Ottawa, Ontario, Canada. He is also Director of its National ... of Medicine, in the Department of Radiology, and in the Department of Cellular and ...
(Date:1/10/2019)... ... 2019 , ... A major goal for pharmaceutical companies has ... significantly more expensive in vivo studies in order to reduce costs and improve ... researchers have begun to adopt 3D cell culture models which have been shown ...
Breaking Biology News(10 mins):
(Date:12/20/2018)... ... December 20, 2018 , ... New Year’s brings reflection ... changes in regulations in the European Union (EU) on the horizon, Jim Kasic, president ... , “The transition to the EU Medical Device Regulation (MDR), digital health, and big ...
(Date:12/18/2018)... ... December 18, 2018 , ... Patients with early stages of breast cancer who ... post-treatment versus whole breast irradiation, a new study suggests. , Patients with early stage ... irradiation after removal of the cancerous tumor because there is a 30 to 40 ...
(Date:12/13/2018)... ... December 13, 2018 , ... Microbial Discovery Group LLC (MDG) ... been part of their strategic plan and an important milestone in increasing their ... opportunities for MDG within the $44 Billion human probiotic market. This plan is ...
(Date:12/5/2018)... (PRWEB) , ... December 04, ... ... an established North American full-service contract research organization (CRO), announced the acquisition ... transaction significantly strengthens ARG’s reach and experience in the management of clinical ...
Breaking Biology Technology:
Cached News: