HOME >> BIOLOGY >> NEWS
Plants that produce more vitamin C may result from UCLA-Dartmouth discovery

UCLA and Dartmouth scientists have identified a crucial enzyme in plant vitamin C synthesis, which could lead to enhanced crops. The discovery now makes clear the entire 10-step process by which plants convert glucose into vitamin C, an important antioxidant in nature.

"If we can find ways to enhance the activity of this enzyme, it may be possible to engineer plants to make more vitamin C and produce better crops," said Steven Clarke, UCLA professor of chemistry and biochemistry, director of UCLA's Molecular Biology Institute and co-author of the research study, to be published as a 'Paper of the Week' in the Journal of Biological Chemistry and currently available online.

"We hit on gold," Clarke said, "because we now have a chance to improve human nutrition and to increase the resistance of plants to oxidative stress. Plants may grow better with more vitamin C, especially with more ozone in the atmosphere due to pollution."

Carole Linster, a UCLA postdoctoral fellow in chemistry and biochemistry and lead author of the study, discovered the controlling enzyme, GDP-L-galactose phosphorylase, which serves as the biosynthetic pathway by which plants manufacture vitamin C.

"Our finding leads to attractive approaches for increasing the vitamin C content in plants," Linster said. "We now have two strategies to provide enhanced protection against oxidative damage: Stimulate the endogenous activity of the identified enzyme or engineer transgenic plants which overexpress the gene that encodes the enzyme."

When life on Earth began, there was almost no oxygen, Clarke noted.

"Two billion years ago, plants devised an efficient way to get sunlight to make sugar from carbon dioxide that produced oxygen as a waste product; that waste product probably killed off most of all living species at that time," Clarke said. "The only organisms that survived developed defenses against it, and one of the best defenses is vitamin C
'"/>

Contact: Stuart Wolpert
swolpert@support.ucla.edu
310-206-0511
University of California - Los Angeles
23-May-2007


Page: 1 2 3

Related biology news :

1. Plants recognize their siblings, biologists discover
2. Plants tag insect herbivores with an alarm
3. Plants with male and bisexual flowers on the same plant are better mothers
4. Plants do not emit methane
5. Plants management of nutrient suggests environmental remedies
6. Plants point the way to coping with climate change
7. Plants, plasmids and possibilities -- Methods permit functional gene studies in plants
8. Plants give up answers in the war on bacteria
9. Plants tell caterpillars when its safe to forage
10. Plants role in global warming re-examined in ORNL Science paper
11. Hold your breath; Plants may absorb less carbon dioxide than we thought

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


(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their boarding ... ... biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at the ... to allow eligible Delta SkyMiles Members who are enrolled in CLEAR to ...
(Date:6/14/2017)... , June 15, 2017  IBM (NYSE: IBM ) ... international tech event dedicated to developing collaboration between startups and ... on June 15-17. During the event, nine startups will showcase ... value in various industries. France ... the international market, with a 30 percent increase in the ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... 2017 , ... BioMedGPS announces expanded coverage of SmartTRAK Business ... US Hemostats & Sealants. , SmartTRAK’s US Market for Hemostats and Sealants module ... and biologic sealants used in surgical applications. BioMedGPS estimates the market will grow ...
(Date:10/12/2017)... San Diego, CA (PRWEB) , ... ... ... BioInformatics (https://www.onramp.bio/ ) has launched Rosalind™, the first-ever genomics analysis platform ... eliminating all bioinformatics complexity. Named in honor of pioneering researcher Rosalind Franklin, ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 ... overexpression experiments and avoiding the use of exogenous expression plasmids. The simplicity of ... performing systematic gain-of-function studies. , This complement to loss-of-function studies, such as ...
(Date:10/11/2017)... , ... October 11, 2017 , ... ComplianceOnline’s Medical Device ... on 7th and 8th June 2018 in San Francisco, CA. The Summit brings together ... as several distinguished CEOs, board directors and government officials from around the world to ...
Breaking Biology Technology:
Cached News: