Navigation Links
Microbe diet key to carbon dioxide release
Date:7/31/2008

DURHAM, N.C. - As microbes in the soil break down fallen plant matter, a diet "balanced" in nutrients appears to help control soil fertility and the normal release of the greenhouse gas carbon dioxide into the atmosphere.

When plants drop their leaves, stems and twigs, this organic matter slowly becomes part of the soil as a result of decomposition, which is facilitated by bacteria and other microbes. This process adds plant nutrients to the soil and releases carbon dioxide into the atmosphere.

Duke University scientists found the proportion of nitrogen to carbon in this organic matter determines how much nitrogen becomes available to plants in the soil and how much carbon dioxide is released into the atmosphere. Their study also yielded a universal mathematical formula that can predict the decomposition process anywhere in the world.

The results of the Duke analysis were published Aug. 1 in the journal Science.

"For the first time, we have been able to demonstrate that the pattern of carbon dioxide release into the atmosphere through decomposition is governed by the same properties everywhere, from the Arctic Circle to tropical rain forests," said first author Stefano Manzoni, a Ph.D. candidate in civil and environmental engineering who works in the laboratory of senior scientist Amilcare Porporato, associate professor of civil engineering in Duke's Pratt School of Engineering. "This provides a mathematical way of describing a critical natural process."

During decomposition, microbes digest fallen organic matter from plants and slowly break it down. Two of the important byproducts of this process are mineral nitrogen and carbon dioxide. Nitrogen is an essential nutrient for both plants and microbes, and once it becomes mineralized, it becomes available for plants to use.

Carbon -- the most abundant element in plants and organic matter -- is released into the atmosphere in the form of carbon dio
'/>"/>

Contact: Richard Merritt
richard.merritt@duke.edu
919-660-8414
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Hungry microbes share out the carbon in the roots of plants
2. Microbes churn out hydrogen at record rate
3. Cosmopolitan microbes -- hitchhikers on Darwins dust
4. Scientists melt million-year-old ice in search of ancient microbes
5. Methane from microbes: a fuel for the future
6. Nitrous oxide from ocean microbes
7. Elevated carbon dioxide changes soil microbe mix below plants
8. Paired microbes eliminate methane using sulfur pathway
9. Hot springs microbes hold key to dating sedimentary rocks, researchers say
10. Unexplored microbes hold incredible potential for science and industry
11. New window opens on the secret life of microbes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... new study from UC San Francisco is the first ... accumulate overtime and accelerate cellular aging, these negative effects ... and sleeping well. , "The study participants who ... shortening than the ones who didn,t maintain healthy lifestyles, ... lead author Eli Puterman, PhD, assistant professor in the ...
(Date:7/28/2014)... the South Pole in 1911, but new research shows ... , Using data from 16 ice cores collected from ... South Pole, a group led by Joe McConnell of ... the most accurate and precise reconstruction to date of ... described in an article published today in the online ...
(Date:7/28/2014)... TEMPE, Ariz. - Reactions among minerals and organic compounds ... deep carbon cycle, they provide energy for the deep ... life. However, very little is known about how minerals ... Arizona State University have demonstrated how a common mineral ... negating the need for toxic solvents or expensive ...
Breaking Biology News(10 mins):Healthy lifestyle may buffer against stress-related cell aging, study says 2Lead pollution beat explorers to South Pole, persists today 2Lead pollution beat explorers to South Pole, persists today 3Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3
... University] Researchers from Brown University and the University of ... in breast cancers are related to environmental risk factors and ... disease. The study is published in today,s edition of ... of tumors had a direct association with diet, alcohol, and ...
... have high accumulations of the material beta-amyloid, which appear ... plaques are believed to be the underlying cause of ... in memory that characterize Alzheimer,s disease. The main aim ... formation of beta-amyloid. Since beta-amyloid is cleaved from the ...
... This release is available in German . ... and Marine Research in the Helmholtz Association for the first ... mission at about 79 North. The four-metre-long, torpedo shaped underwater ... pack ice. The vehicle was subsequently recovered by helicopter. ...
Cached Biology News:Study finds diet and alcohol alter epigenetics of breast cancer 2New approach to Alzheimer's therapy 2Highlight of the Polarstern expedition 2
(Date:7/29/2014)... 2014 According to the new ... Analytics (Image Analysis Software), Delivery Modes (Web Based/Cloud Based) ... Trends to 2018", published by MarketsandMarkets, analyzes and studies ... as North America , ... the Rest of the World (RoW). Browse ...
(Date:7/29/2014)... A new report by Allied ... and geography) - Size, Share, Global Trends, Company Profiles, ... 2013 - 2020", suggests that the global surgical equipment ... registering a CAGR of 11.1% from 2014 to 2020. ... electro surgical devices in operative procedures by providing highly ...
(Date:7/29/2014)... TransVac Solutions, the trusted leader in automated waste, ... hospitals, will be exhibiting at booth #209 at the ... Technical Exhibition Aug. 3-6 in Chicago, Ill. ... cleaner, reducing infection risk and saving millions in labor ... Staff will be available at booth #209 to explain ...
(Date:7/29/2014)... Genera Energy Inc. , a ... supply chain advancements, has announced the deployment of ... and Supply ASSURE™. Both systems were developed ... at consolidating and simplifying the entire process, managing ... feedstock end users. , “Through the Energy Grange ...
Breaking Biology Technology:Digital Pathology Market worth $437 Million by 2018 2Digital Pathology Market worth $437 Million by 2018 3Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 2Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 3TransVac Presents Cost Saving Technology at ASHE Conference for Keeping Hospitals Cleaner 2Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4
... receive funding for technology development projects from the ... Grant program. , ,The TAG program provides grants ... companies to offset the cost of professional services. ... Automated Notification Systems, Inc. , Eau Claire; Micrablate, ...
... the balkanization of information technology in healthcare will take ... Digital Healthcare Conference 2006 . And vendors aren't necessarily ... customers. , ,Providers are facing that common IT problem: ... of vendors and systems with challenges agreeing to standards, ...
... a gathering of health professionals attending the eHealth Summit ... first state to have a fully integrated electronic medical ... barriers. , ,Speaking before a group of healthcare executives, ... state's eHealth Initiative, Doyle said those barriers include organizational ...
Cached Biology Technology:Being proactive with vendors helps healthcare improve IT 2Doyle asks health professionals to overcome barriers 2Doyle asks health professionals to overcome barriers 3
Request Info...
Prepared in distilled water....
... white. The extinction coefficient , E(1%) at ... phosphate-buffered saline, pH 7.4, containing ... 50% glycerol. Avidin (from egg white) is conjugated ... molecular sieving and is completely ...
NM522 contains an F episome, which is required for production of ssDNA and for blue/white color selection. To maintain the F, NM522 should be grown on minimal (M-9) medium....
Biology Products: