HOME >> BIOLOGY >> NEWS
Increasing carbon dioxide relieves drought stress in corn, researchers say

CHAMPAIGN, Ill. -- Increasing carbon dioxide in the atmosphere will benefit photosynthesis in U.S. corn crops in the future by relieving drought stress, say researchers at the University of Illinois at Urbana-Champaign.

According to preliminary findings of a new study -- being released this week in Hawaii during Plant Biology 2003, the annual meeting of the American Society of Plant Biologists -- photosynthesis of maize on average increased by 10 percent under projected carbon dioxide conditions in the year 2050.

"Carbon dioxide in isolation is good news for the farmers, but unfortunately such conditions won't be in isolation from other factors, so it isn't known how significant these findings may be," said Stephen P. Long, a professor of plant biology and crop sciences.

Long is a lead researcher of SoyFACE (Free Air Concentration Enrichment), a long-term project and the only open-air experiment in the world looking at the effect of future levels of ozone and carbon dioxide gases on agricultural crops.

The corn photosynthesis findings are being exhibited by Andrew Leakey, a Fulbright scholar from Scotland who is conducting research in the SoyFACE fields with Long and with Carl Bernacchi and Donald Ort, both professors of plant biology at Illinois and scientists with the USDA/Agricultural Research Service.

Corn is among the 1 percent of plants that use the carbon-dioxide efficient photosynthesis system known as C4. Scientists had theorized that C4 plants would not respond to more carbon dioxide in the air, because the gas is internally concentrated by the leaf essentially a fuel-injected photosynthesis, Leakey said.

However, Leakey found that in a carbon dioxide concentration of 550 parts per million, carbon fixation in the leaves indeed rose in association with greater intercellular carbon dioxide and enhanced water use efficiency.

The 2002 growing season,
'"/>

Contact: Jim Barlow
jebarlow@uiuc.edu
217-333-5802
University of Illinois at Urbana-Champaign
25-Jul-2003


Page: 1 2

Related biology news :

1. Increasing international insect threat to stored food
2. Increasing ozone over the Atlantic ocean
3. Increasing biodiversity is not always best
4. Increasing nitrogen in Earths soils may signal global changes, say U. of Colorado researchers
5. Increasing carbon dioxide threatens coral reefs
6. Increasing Carbon Dioxide Threatens Tropical Coral Reefs
7. Bacteria Becoming Increasingly Resistant To Antibiotics, But New Vaccines Are On The Horizon
8. Increasing Frequency Of El Nino Takes Toll On Northern Hemispheres Only Penguins
9. Increasing Threat Of Extinction For Amphibians? Scientists To Seek Answers At NSF Workshop
10. The Environmental Consequences Of Increasing Food Production
11. Potential for enhanced sequestration of carbon in soils supports evaluations

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


(Date:7/4/2020)... , ... July 03, 2020 , ... ... to earn outstanding recognition and multiple awards for not only the products and ... portfolio, SoME® Skincare and Vivace® Microneedle RF. All the brands built by ABM ...
(Date:7/1/2020)... SOMERSET, N.J. (PRWEB) , ... July 01, 2020 ... ... today announced that it had completed the purchase of Teva-Takeda Pharmaceuticals’ packaging facility ... with the company’s existing Japanese clinical supply facility located in Kakegawa, the new ...
(Date:6/28/2020)... ... ... In an upcoming episode scheduled for the fall of 2020, Advancements with Ted ... local listings for more info. , Today, the majority of testing is performed at ... the country. Results are then available several days later. Now, in an effort to ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... August 12, 2020 , ... Inc. magazine ... global leader in FDA compliance consulting has been named on its annual Inc. ... list represents a unique look at the most successful companies within the American ...
(Date:7/31/2020)... , ... July 29, 2020 , ... R3 Stem Cell ... for only $3950. With 50 million stem cells total, patients may choose which extremities ... therapy works for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... leading global provider of advanced delivery technologies, development, and manufacturing solutions for drugs, ... have entered into a strategic partnership whereby Catalent will provide support for the ...
(Date:7/22/2020)... ... July 22, 2020 , ... Join experts from Reed Tech , Gary ... in a one hour live webinar on Thursday, August 13, 2020 at ... drugs and medical devices. Specifically, for medical devices, the NMPA has departments dealing with ...
Breaking Biology Technology:
Cached News: