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:8/18/2015)... PRINCETON, N.J. , Aug. 18, 2015 ... be a key contributor to the Submission ... hosted by IRISS, a non-profit forum. Dedicated to ... IRISS provides a neutral platform for industry, ... to share information and work towards a ...
(Date:8/12/2015)... 2015  New research unveiled at Black Hat ... to steal users, fingerprints. Information released today by ... scanners on mobile devices, making the security of ... on mobile devices, HYPR Corp. recently released a ... systems with strong cryptographic security. More information on ...
(Date:8/6/2015)... CITY, Calif. , Aug. 6, 2015 /PRNewswire/ ... Valley) will visit Crossmatch ™ to learn ... networks and protect data. Crossmatch is a world ... whose technologies and expertise are helping federal agencies ... efficiency and security.   "The vast ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3Rep. Honda to Visit Crossmatch in Redwood City 2
... to measure sea-ice thickness in the Arctic, but data from ... High-resolution mapping of the topography of the ocean floor is ... main objective of the polar-orbiting CryoSat is to measure the ... ice sheets that blanket Greenland and Antarctica. ,But the satellite,s ...
... rear from the couch means your hand will spend less ... That is the simple but profound finding of ... bad habit has a domino effect on others. Knock down ... saturated fats because you,re no longer glued to the TV ...
... getting stronger or weaker? Right now, it,s hard to know. ... this medical challenge by developing and applying a technique that ... technique was more sensitive in detecting bone loss than the ... it may find use in clinical settings, and could pave ...
Cached Biology News:CryoSat goes to sea 2Less couch time equals fewer cookies 2Earlier detection of bone loss may be in future 2Earlier detection of bone loss may be in future 3Earlier detection of bone loss may be in future 4
(Date:9/2/2015)... , Sep. 02, 2015 ... the addition of Jain PharmaBiotech,s new report "Gene ... offering. The markets for gene therapy are ... gene therapy product and it is marketed in ... are estimated for the years 2014-2024. The estimates are ...
(Date:9/2/2015)... Biovista Inc. is glad to ... BeHEARD science challenge, a global competition hosted by the ... to the latest life science innovations and technologies. ... analytics capability to support Steven Laffoon and ... of Niemann-Pick Disease Type A (NPA), a rare and ...
(Date:9/2/2015)... , Sept. 2, 2015  Neurotech Pharmaceuticals, Inc., ... in the multicenter Phase 2 clinical trial of ... treatment of recurrent subfoveal choroidal neovascularization secondary to ... a unique vascular endothelial growth factor (VEGF) receptor ... "This landmark proof-of-concept study will evaluate ...
(Date:9/2/2015)... 2, 2015 Aytu BioScience, Inc. (OTCQB: AYTU), ... urological and related conditions, announced today that it has ... convertible note financing, raising a total of $5.175 million, ... million. Josh Disbrow , Chief ... placement are intended to be used to conduct clinical ...
Breaking Biology Technology:Global Gene Therapy Market Study 2015-2024 - Technologies, Markets and Companies Analysis 2Biovista Sponsors Wylder Nation Foundation's Research on Acid Sphingomyelinase Deficiency 2Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 2Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 3Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 4Aytu BioScience Completes $5.175 Million Private Placement 2Aytu BioScience Completes $5.175 Million Private Placement 3
... January 16 Miltenyi Biotec,announces the worldwide ... and,compact flow cytometer for multiparameter cell analysis. ... product portfolio of the cell analysis,business section ... with novel,features. "Whether working with one or ...
... PALO ALTO, Calif., Jan. 16 Varian, Inc.,(NasdaqGS: VARI) ... and 80 temporary positions and to close certain facilities. ... continuing uncertainty in the global economic environment,we are taking ... us to,respond to demand fluctuations while continuing to invest ...
... that can recognize and immediately report on a wide ... possible, using a method that incorporates a mixture of ... Penn State researchers., "Probably one of the most important ... the wires accurately," says Theresa S. Mayer, professor of ...
Cached Biology Technology:The New MACSQuant(TM) Analyzer Combines Cell Enrichment and Flow Cytometry 2Varian, Inc. Announces Cost Reduction Plan 2Easy assembly of electronic biological chips 2
Rabbit anti-NFkB p105/p50 (Ser337) Class: Antibody Product Group: Signalling molecules and phospho-specific Antibody...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
CD69/CD3 50 tests...
Mouse monoclonal [CIG 3A11/5] to Cig2 (rating: *****) ( Abpromise for all tested applications)....
Biology Products: