Navigation Links
Study helps clarify role of soil microbes in global warming
Date:10/28/2008

t in a handful of dirt, there are somewhere around 10,000 species and millions of individual bacteria and fungi," said study co-author Matthew Wallenstein, a research scientist at Colorado State University. "Our findings add to the understanding of how complex these systems are and the role they play in feedbacks associated with climate change."

The researchers studied soil microbes at Harvard Forest in Massachusetts, the site of a soil warming experiment that began in 1991. Scientists took soil samples from two plots, one in which buried cables heat the soil to five degrees Celsius above the ambient soil temperature (a condition that is expected to occur around 2100) and a control condition in which cables are buried but not producing heat.

In the first set of experiments, the scientists compared microbial respiration in the two groups and found lower rates of decomposition in the heated plots. This finding supported the idea that respiration decreases after a few years of warming, but didn't explain whether the cause was substrate depletion in the warmer soils or adaptation by the microbes.

In the next set of experiments, they added the simple sugar sucrose to both sets of soils to alleviate any food limitation for the microbes. They found that microbes from both conditions increased their respiration, but that the increase was greater in the unheated control soils than in the heated soils. "That finding told us that substrate depletion played a role," Bradford said, "but it also told us that there were other factors involved."

The researchers then measured microbial biomass and found that there were fewer microbes in the heated soils. To test whether thermal adaptation occurred, they measured respiration while keeping temperature constant. They found that respiration rates were indeed lower in the heated versus the control soils, even when adjusting for microbial biomass.

Wallenstein pointed out that the study is among
'/>"/>

Contact: Sam Fahmy
sfahmy@uga.edu
706-542-5361
University of Georgia
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... According to the new market ... Area), Material (Optical Prism, Pizeoelectric, Capacitive, and Adhesives), Application ... & Finance), and Geography - Global Trends & Forecasts ... Fingerprint Sensors Market is projected to cross $14.35 Billion ... from 2014 to 2020. Browse more than ...
(Date:7/10/2014)... , July 7, 2014 Fingerprint ... first major design win (DW). A Chinese Top 5 smartphone ... planned start of mass production in October 2014.   ... Chinese Top 5 smartphone OEM, which has a planned date ... a target sales volume for this phone of 3 million ...
(Date:7/10/2014)... , July 8, 2014 ... won a new design win (DW). An Asian OEM has ... for mass production start in August 2014.   ... smartphone OEM, which has a planned date for start of ... initial ramp order of SEK 5M, for delivery in the ...
Breaking Biology News(10 mins):Fingerprint Sensors Market worth $14.35 Billion by 2020 2Fingerprint Sensors Market worth $14.35 Billion by 2020 3FPC Wins DW for 1021 Touch Sensor for Flagship Smartphone from Chinese Top 5 Smartphone OEM 2FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... the pollination season approaches in Pennsylvania and the Northeast, ... answers to the decline of the nation,s honeybees and ... $15 billion worth of crops in the United States. ... brand has stepped up to support honeybee research and ...
... 19 The U.S. Department of Homeland,Security ... collecting additional,fingerprints from international visitors arriving at ... is part of the department,s,upgrade from two- ... legitimate travel by more accurately and efficiently,establishing ...
... If youre a land owner and animals such as coyotes or ... on the way to control their numbers in a humane way ... being developed at Texas A&M Universitys College of Veterinary Medicine & ... animals through baited food, researchers say. Researchers are testing oral ...
Cached Biology News:Haagen-Dazs gift to support Penn State honeybee research 2Haagen-Dazs gift to support Penn State honeybee research 3DHS Begins Collecting 10 Fingerprints From International Visitors at Detroit Metropolitan Wayne County Airport 2Texas A&M testing oral contraceptives for animals 2
(Date:7/11/2014)... Scottsdale, AZ (PRWEB) July 11, 2014 ... medicine device company specializing in the soft tissue ... SureLock All-Suture Anchor System for surgeries involving the ... predictable fixation through a novel, inserter-controlled deployment method. ... lead to partial deployment, anchor pull-out, or anchor ...
(Date:7/10/2014)... 2014 Terascala, the industry leader in ... Swahn, a former vice president of product management for ... president of marketing. Terascala’s software when combined with leading ... the highest performance and most reliable solutions for processing ... Terascala’s channel expansion and broaden its product portfolio. His ...
(Date:7/10/2014)... 10, 2014 Senior supply chain management ... associations, addressed the challenges of “Reducing Cost, Lead Time, ... through strategic sourcing. Describing the partnership of the Bio ... Chain Management Institute ( SCMI) of the University ... 24 at the Kroc Institute of Peace and Justice ...
(Date:7/10/2014)... DUBLIN , July 10, 2014 ... the addition of the "International Photonic Integrated ... - Forecasts to 2019" report to their ... The concept of photonic integration traces ... twentieth century. The promise of photonic integration went ...
Breaking Biology Technology:Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Terascala Expands Executive Team 2Terascala Expands Executive Team 3Biotech & 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 4International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2
... , SILVER SPRING, Md., Sept. 1 United Therapeutics ... of Directors has approved and declared a stock split. The ... dividend, in which one share of United Therapeutics common stock will ... (or held in treasury) at the close of business on the ...
... , KALAMAZOO, Mich., Sept. 1 Stryker Corporation ... effective today. , , Lonny J. Carpenter, ... position of Group President, Global Quality and Operations, reporting to ... this role, Mr. Carpenter will be responsible for setting and ...
... 1 ERT (Nasdaq: ERES ), announced today that Dr. ... Company,s Executive Vice President and CFO, are scheduled to present at Baird,s ... 2009 in New York City, New York. , , ... at http://www.ert.com . The webcast may also be accessed ...
Cached Biology Technology:United Therapeutics Corporation Announces Stock Split To Be Effected as a Stock Dividend 2Stryker Announces Organizational Changes 2ERT to Present at Baird's 2009 Health Care Conference on September 9, 2009 2
uncoupling protein 2 (mitochondrial, proton carrier), mRNA (cDNA clone MGC:19567 IMAGE:4335185), complete cds...
Standard 2" or 3" Plastic can be ordered with 81 or 100 cell dividers. Mini 2" Plastics Boxes come standard with 25 cell dividers. Plastic boxes can also be ordered with corresponding freezer racks...
Ultra Pure Grade. Used in conjunction with IPTG to identify bacterial colonies that contain recombinant plasmids by blue/white selection. X-Gal forms an intense blue precipitate in the presence of be...
Request Info...
Biology Products: