Navigation Links
Corralling the carbon cycle
Date:11/13/2008

Stanford, CAScientists may have overcome a major hurdle to calculating how much carbon dioxide (CO2) is absorbed and released by plants, vital information for understanding how the biosphere responds to stress and for determining the amount of carbon that can be safely emitted by human activities. The problem is that ecosystems simultaneously take up and release CO2. The key finding is that the compound carbonyl sulfide, which plants consume in tandem with CO2, can be used to quantify gas flow into the plants during photosynthesis. The research is published in the November 14, issue of Science.

"In photosynthesis, plants 'breath' in carbon dioxide from the atmosphere and, with sunlight energy, convert it and water into food and oxygen, which they then 'exhale,'" explained co-author Joe Berry from the Carnegie Institution's Department of Global Ecology. "In ecosystems, plants and other organisms respire producing carbon dioxide. We can measure the net change in CO2, but we do not have an accurate way to measure how much is going in or out and how this is affected by climate. Understanding this photosynthesis-climate feedback riddle is key to understanding how climate change may affect the natural processes that are a sink for human-made carbon emissions."

Previous laboratory research showed that carbonyl sulfide is taken up in step with photosynthesis. But unlike CO2, there is no emission of carbonyl sulfide from plants.

The researchers compared atmospheric measurements of carbonyl sulfide over North American during the growing season with two simulations of an atmospheric transport model. The airborne observations, from the Intercontinental Chemical Transport Experiment-North America, also measured CO2. They combined that data with results from laboratory experiments that looked at gas exchange at the leaf level.

"We've always looked at the total change in CO2, but now we can look for the influence of photosynth
'/>"/>

Contact: Joe Berry
joeberry@GlobalEcology.stanford.edu
650-462-1047 x203
Carnegie Institution
Source:Eurekalert

Page: 1 2

Related biology news :

1. New study warns limited carbon market puts 20 percent of tropical forest at risk
2. Mice use specialized neurons to detect carbon dioxide in the air
3. Researchers find new taste in fruit flies: carbonated water
4. Studying component parts of living cells with carbon nanotube cellular probes
5. New membrane strips carbon dioxide from natural gas faster and better
6. Green alga genome project catalogs carbon capture machinery
7. Hungry microbes share out the carbon in the roots of plants
8. Decline in uptake of carbon emissions confirmed
9. Study reveals that nitrogen fertilizers deplete soil organic carbon
10. US fires release large amounts of carbon dioxide
11. Wildfire drives carbon levels in northern forests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Research awarded Michael F. Holick, PhD, MD, of Boston ... V. Avioli Award. Holick, a professor of medicine, physiology ... the understanding of vitamin D and its role in ... of the American Society for Bone and Mineral Research ... research. It is named for ASBMR,s first president and ...
(Date:7/11/2014)... researchers from The Chinese University of Hong Kong, BGI ... soybean linked to salt tolerance, with implication for improving ... study published online in Nature Communications provides ... crop improvement. , Soybean is an important crop for ... soybeans have less genetic diversities than their wild counterparts. ...
(Date:7/11/2014)... 11, 2014 Researchers have pioneered a revolutionary ... new technology, called Virtual Finger, allows scientists to ... neurons and synapses using the flat surface of ... 3D imaging studies orders of magnitude more efficient, ... level across many areas of experimental biology. The ...
Breaking Biology News(10 mins):BUSM's Michael F. Holick receives American Society for Bone and Mineral Research award 2BGI reports a novel gene for salt tolerance found in wild soybean 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
... from the University California, San Diego (UCSD) Branch of ... Systems have developed an efficient method to identify thousands ... a study published today in Nature. , Genes are ... Thus the 'promoter' - a DNA sequence that controls ...
... States have found evidence of lichen-like symbiosis in 600-million-year-old ... lichen was 400 million years old, discovered in Scotland. ... of fungi and raises new questions about lichen evolution. ... of Geology and Palaeontology; Shuhai Xiao, assistant professor of ...
... Asian tsunami tragedy should be allowed to recover naturally ... some of the world's leading scientists. , The scientists, ... upon Tyne, and who set out their views in ... historical records of major coral reef devastation by cyclones ...
Cached Biology News:Whole genome promoter mapping - Human Genome Project v2.0? 2Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils 2Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils 3Tsunami-damaged coral reefs should be left to recover naturally, say scientists 2
(Date:7/10/2014)... (PRWEB) July 10, 2014 Unraveling life’s ... together. The Archer Family purchased a DNA ... DNA, but ended up with a lifetime of memories, ... within the family members’ DNA genuinely brought the family ... to search deeper into genetic history and prior to ...
(Date:7/10/2014)... OMICS Group’s 5th International conference and exhibition ... at Double Tree by Hilton Beijing, China is all ... & Bioanalytical research methods only to facilitate improved living ... Dr. Srinubabu Gedela, MD of OMICS Group Inc has ... one in bringing a unique and international mix of ...
(Date:7/10/2014)... Senior supply chain management executives from over 50 ... of “Reducing Cost, Lead Time, & Defects in the ... the partnership of the Bio Supply Management Alliance ( ... SCMI) of the University of San Diego in ... Institute of Peace and Justice in San Diego, Devendra ...
(Date:7/10/2014)... , July 10, 2014 On ... Dmitry Medvedev , presented Russia,s ... BIOCAD . The Company is developing a unique project ... project BIOCAD develops a number of innovative drugs based ... diseases. The ceremony took place at the International Exhibition ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... Fla., Feb. 12 CORD:USE Cord Blood Bank,is proud ... Jimmie Johnson has joined its team. "We,re honored to ... states Dr. Edward,Guindi, President and CEO of CORD:USE. Jimmie ... "Help Win the Race for Life(TM)",campaign., "I,m excited ...
... Powerful Multi-Modal Fusion Platform Includes Innovative Biometric ... ... Virginia, February 12 WCC Smart Search & Match,a leading ... with Retica Systems, a leader in providing,innovative eye biometric technology ...
... Feb. 12 /PRNewswire/ - Halogen Software Inc., a ... software,today announced that 2007 marked another record year ... quarter of 2007, included record,revenue with the company ... an offering that provides enterprise-level functionality to,organizations of ...
Cached Biology Technology:Two-time Defending NASCAR Sprint Cup Series Champion Jimmie Johnson Joins the Team at CORD:USE Cord Blood Bank to Help Win the Race for Life 2WCC Smart Search & Match and Retica Announce Global Collaboration 2Halogen Announces Record Year - Company Solidifies Leadership Position, Secures Strategic Wins Over Competition 2Halogen Announces Record Year - Company Solidifies Leadership Position, Secures Strategic Wins Over Competition 3
... MagicMark XP Western Protein Standards are ... protein molecular weight estimation directly on ... an IgG binding site, allowing direct ... used to detect your target protein ...
... TOPO Cloning is ... available for cloning PCR ... and Zero Blunt TOPO ... and activated with topoisomerase ...
... Conjugated peptides or recombinant proteins ... to produce antibodies in 2 rabbits. pre-immune ... ELISA test until the titer reaches 1:4,000 ... Protein G purification Antibodies are eluted ...
... Immunogen: Recombinant human IDO ... for the ~44 kDa human ... (positive control: IFN-Gamma-stimmulated Human peripheral ... homology reactivity with mouse and ...
Biology Products: