Navigation Links
High CO2 boosts plant respiration, potentially affecting climate and crops
Date:2/9/2009

The leaves of soybeans grown at the elevated carbon dioxide (CO2) levels predicted for the year 2050 respire more than those grown under current atmospheric conditions, researchers report, a finding that will help fine-tune climate models and could point to increased crop yields as CO2 levels rise.

The study, from researchers at the University of Illinois and the U.S. Dept. of Agriculture, appears this week in the Proceedings of the National Academy of Sciences.

Plants draw CO2 from the atmosphere and make sugars through the process of photosynthesis. But they also release some CO2 during respiration as they use the sugars to generate energy for self-maintenance and growth. How elevated CO2 affects plant respiration will therefore influence future food supplies and the extent to which plants can capture CO2 from the air and store it as carbon in their tissues.

While there is broad agreement that higher atmospheric CO2 levels stimulate photosynthesis in C3 plants, such as soybean, no such consensus exists on how rising CO2 levels will affect plant respiration.

"There's been a great deal of controversy about how plant respiration responds to elevated CO2," said U. of I. plant biology professor Andrew Leakey, who led the study. "Some summary studies suggest it will go down by 18 percent, some suggest it won't change, and some suggest it will increase as much as 11 percent."

Understanding how the respiratory pathway responds when plants are grown at elevated CO2 is key to reducing this uncertainty, Leakey said. His team used microarrays, a genomic tool that can detect changes in the activity of thousands of genes at a time, to learn which genes in the high CO2 plants were being switched on at higher or lower levels than those of the soybeans grown at current CO2 levels.

R
'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2

Related biology news :

1. A little wine boosts omega-3 in the body: Researchers find a novel mechanism for a healthier heart
2. Nanotechnology boosts war on superbugs
3. Anti-HIV therapy boosts life expectancy more than 13 years
4. Programmed death boosts business
5. Continents loss to oceans boosts staying power
6. Nitrogen pollution boosts plant growth in tropics by 20 percent
7. New treatment boosts bone healing and regrowth
8. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
9. Cold Spring Harbor Protocols features stem cell differentiation, plant RNAi methods
10. Plant soybean early to increase yield
11. Genome of a heat and drought resistant cereal plant analyzed
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
High CO2 boosts plant respiration, potentially affecting climate and crops
(Date:9/30/2014)... German . ... risky situations such as exposure to predators. Researchers from ... a long-term study on different populations of great tits ... ambient temperature. High metabolic rates and low temperatures were ... birds were more likely to approach potential predators. , ...
(Date:9/30/2014)... of perilous threats in today,s ocean. From overfishing ... fragile coral ecosystems are disappearing at unprecedented rates ... of corals surrounding the island of Moorea in ... tropical environment: coral guard-crabs. New research from the ... scientist Seabird McKeon and the museum,s predoctoral fellow ...
(Date:9/30/2014)... 30, 2014 Winners of The Economist,s prestigious ... scheduled to take place at the JW Marriott Hong Kong on ... winners will share their experiences and the lessons those hold for ... proven innovation over the past decade, will be presented at a ... the summit. It will be the first time the ceremony has ...
Breaking Biology News(10 mins):Risky metabolism 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7
... plants battle for space, often the actual battle is for ... Nebraska-Lincoln gives important new information on how plants can change ... species to invade and take over native plants. In ... Proceedings of the National Academy of Sciences , UNL biologist ...
... LAFAYETTE, Ind. - Catching adult eagles for research purposes is ... a way around the problem, and, in the process, gathered ... hand on one. "Many birds are small, easy to ... and natural resources. "With eagles, the effort can be 100 ...
... CSIRO science is being used to improve land management ... nutrients and pesticides on to the Great Barrier Reef. ... CSIRO, Australian Government Reef Rescue team and the Bureau ... how it allocates more than $50 million between reef ...
Cached Biology News:Nitrogen research shows how some plants invade, take over others 2Scientists are learning more about big birds from feathers 2Investing wisely to save the Great Barrier Reef 2
(Date:9/30/2014)... 30, 2014 Proove Biosciences , ... excited to announce a new genetic test built upon ... Pain Perception Test will provide physicians with an ... pain tolerance levels are stratified between individuals. With this ... a person has a genetic predisposition that will affect ...
(Date:9/30/2014)... , September 30, 2014 ... intuitive browsing of chemistry in documents ... software solutions and consulting services for life science ... information and generate Markush structures from documents. ... organizations intellectual property, however generating and understanding Markush ...
(Date:9/30/2014)... BioHealth Innovation, Inc. (BHI), a ... and increasing access to early-stage funding in ... Tania Fernandez , Ph.D., has joined the BHI ... a member of the management team for a new ... million in seed and early-stage equity investments to therapeutics, ...
(Date:9/30/2014)... 2014 The custom stainless steel fabrication ... Show 2014. The Boston Area Chapter of ISPE (International ... day-long event for Wed., Oct. 1 at Gillette Stadium ... the largest in ISPE Boston’s long history, with more ... attendees expected. , HOLLOWAY AMERICA President David Simpson ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3ChemAxon Introduces ChemCurator for Chemical Information Extraction and Markush Structure Creation 2Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 3
... SUNNYVALE, Calif., Sept. 26 Cepheid (Nasdaq:,CPHD) will ... Growth Stock,Conference on October 3, 2007 at 10:40 ... York. John R. Sluis, Cepheid,s Chief Financial Officer ... Officer, will provide,a corporate overview. The webcast, ...
... strategic platform for reducing risk of cancer ... drug development, ... ; MTAX) held its 2007 annual shareholders meeting,(Annual Meeting) on Tuesday, September ... a majority of CTI,s shares are,held by Italian shareholders. At the 2007 ...
... BioInformatics, SINGAPORE, Sept. 26 /Xinhua-PRNewswire/ -- ... Ltd, a leader in reconfigurable computing,applications headquartered ... The,BioIT Alliance is a cross-industry group working ... pace of drug discovery and realize the,potential ...
Cached Biology Technology:Cepheid to Present at William Blair Small-Cap Growth Stock Conference 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 3Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 4Progeniq Joins Microsoft in Bio IT Alliance 2Progeniq Joins Microsoft in Bio IT Alliance 3
The new Silencer siRNA Starter Kit is perfect for researchers new to RNAi. It provides all of the reagents, protocols, and instructions necessary to get underway with siRNA transfection and ensure su...
... the yolk protein Vtg in plasma from juvenile ... biomarker for endocrine disrupting chemicals (EDCs) with estrogenic ... an accepted screening test for the estrogenic effects ... EIA kit is a double-antibody immunometric (sandwich) EIA ...
... sequence is from rat SCAMP 5. The sequence of this ... Q - P - Q - T - Q - Y ... Y - T - Y - S - N(233). ... the polyclonal antibody that reacts with this product and the rat ...
... Have a novel target for which no antibody ... made custom antibodies for a variety of pharmaceutical, ... happy to put our technology and expertise in ... Access to our patented RabMAb development technology , ...
Biology Products: