HOME >> BIOLOGY >> NEWS
UC Riverside researchers improve drought tolerance in plants

University of California, Riverside researchers reported the development of technology that increases crop drought tolerance by decreasing the amount of an enzyme that is responsible for recycling vitamin C.

Biochemist Daniel R. Gallie, a professor of biochemistry at the University of California, Riverside together with Zhong Chen of his research group reported their findings in the May issue of The Plant Cell.

In the study, the authors reasoned that decreasing the amount of the enzyme dehydroascorbate reductase or DHAR would reduce the ability of plants to recycle vitamin C, making them more drought tolerant through improved water conservation. The researchers accomplished this by using the plant's own gene to decrease the amount of the enzyme three fold.

Researchers used tobacco as a model for crops that are highly sensitive to drought conditions.

"However, our discovery should be applicable to most if not all crop species as the role of vitamin C is highly conserved among plants," said Gallie.

In work published last year in the Proceedings of the National Academy of Sciences, Gallie and his research team reported that the level of vitamin C could be boosted by increasing the amount of this same enzyme.

The U.S. Department of Agriculture and California Agricultural Experiment Station funded the six years of research that led to the current findings.

Vitamin C serves as an important antioxidant in plants as it does in humans and among its many functions in both, it destroys reactive oxygen species that can otherwise damage or even kill cells. "Once used, vitamin C must be regenerated otherwise it is irrevocably lost. The enzyme dehydroascorbate reductase, or DHAR, plays a critical role in this recycling process," explained Gallie.

Reactive oxygen species are produced in plants typically following exposure to environmental conditions such as drought, cold, or air pollution. Plants sense drought c
'"/>

Contact: Ricardo Duran
ricardo.duran@ucr.edu
909-787-5893
University of California - Riverside
19-Apr-2004


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. Plant sex protein identified at UC Riverside
7. UC Riverside researchers publish paper on botulism detection system
8. UC Riverside to convene conference on genetically modified organisms, Oct. 14-17, 2003
9. UC Riverside plant pathologist awarded $1 million grant to study virus assembly
10. UC Riverside study indicates mosquito coils may cause cancer
11. UC Riverside geneticist awarded $2.4 million grant by the National Science Foundation

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


(Date:6/23/2020)... , ... June 23, 2020 , ... ... sustainable healthcare, and Renovagen Ltd, a UK supplier and manufacturer of innovative portable ... support testing operations in the fight against the COVID-19 pandemic in Zambia. , ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... pleased to announce the next event in a series of TOPIQ webinars, which ... TOPIQ series of webinars was developed in response to social distancing measures that ...
(Date:6/19/2020)... ... June 16, 2020 , ... The director of stem cell biotechnology company ... stem cell medicine and pharmaceutical industries have easier access to stem cell counting, they ... 5 of this year, Independence Day weekend in the U.S., Asymmetrex is offering free ...
Breaking Biology News(10 mins):
(Date:6/3/2020)... ... , ... Thought Technology Ltd. is offering a free webinar ... Inna Khazan will discuss the benefits of using mindfulness techniques with biofeedback. Mindfulness ... thoughts, and emotions they are having in the present moment and to respond ...
(Date:5/28/2020)... ... May 28, 2020 , ... Genedata, the leading provider of ... Screener ® 17.0, the latest version of its enterprise software for the automated ... Genedata will host a webinar on June 10, 2020, detailing and demonstrating the ...
(Date:5/21/2020)... Eden Prairie, MN (PRWEB) , ... May 19, 2020 , ... ... solution to help patients get dental implants and bone grafting through PIEZOSURGERY® ... surrounding tissues. This is often used to prepare a patient for dental implants, especially ...
(Date:5/15/2020)... ... May 14, 2020 , ... Children ... open heart surgeries before becoming adults. The reason: there are no heart ... critical unmet need, the Department of Defense has awarded Draper, Boston Children’s Hospital ...
Breaking Biology Technology:
Cached News: