Navigation Links
Microbe community changes may reduce Amazon's ability to lock up carbon dioxide
Date:1/7/2014

m used DNA analysis, specifically the nifH gene that is characteristic of diazotrophs, to measure the communities in the samples.

Rodrigues said researchers were surprised to find a ten-fold increase in the number of diazotrophic microorganisms in the pasture established in 2004, when compared to the primary forests. They theorize the pasture ecosystems rely on the diazotrophs more for nitrogen because of the continuous grazing from cattle, requiring constant regrowth of grasses.

"We observed a complete shift in the diazotrophic microbial community composition in response to the Amazon rain forest conversion to a pasture," Mirza said. "These differences an be attributed to the shift in the above ground plant community because we did see partial recovery of diazotroph community composition in the secondary forest, which have more plant species as compared to pasture."

Mirza said researchers are continuing their work with more sophisticated sequencing technologies and in-depth sampling.

Other co-authors on the new paper include Chotima Potisap, a visiting Ph.D. student from Khon Kaen University in Thailand; Klaus Nsslein, professor of microbiology at the University of Massachusetts; and Brendan J.M. Bohannan, professor at the Institute of Ecology and Evolution, University of Oregon.

The paper is titled "Response of Free-Living Nitrogen Fixing Microorganisms to Land Use Change in the Amazon Rainforest" and is available online here: http://aem.asm.org/content/early/2013/10/21/AEM.02362-13.full.pdf+html.

Despite worries about the effect these changes to the microbial communities may have on the carbon cycle, Rodrigues said there are some encouraging results. After pastures were abandoned and a secondary forest grew, partial restoration of the original diazotrophic communities was achieved, researchers said.

Gro
'/>"/>

Contact: Traci Peterson
tpeterso@uta.edu
817-521-5494
University of Texas at Arlington
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Killer silk: Making silk fibers that kill anthrax and other microbes in minutes
2. Hot new manufacturing tool: A temperature-controlled microbe
3. Microbe that can handle ionic liquids
4. Engineers use droplet microfluidics to create glucose-sensing microbeads
5. Breast-fed babies gut microbes contribute to healthy immune systems
6. Honoring the fundamental role of microbes in the natural history of our planet
7. CU-Boulder-led team finds microbes in extreme environment on South American volcanoes
8. AGU: Unique microbes found in extreme environment
9. Waves of Berkeley Lab responders deploy omics to track Deepwater Horizon cleanup microbes
10. Gut microbes battle a common set of viruses shared by global populations
11. MBL scientists to explore hidden realm of microbes, viruses beneath the ocean floor
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Microbe community changes may reduce Amazon's ability to lock up carbon dioxide
(Date:4/17/2014)... such as heart disease, epilepsy and pain, making them ... is still much scientists do not know about the ... into the structure of sodium channels and, specifically, one ... responsible for ,fine-tuning, the activity of the channel. The ... the Journal of Biological Chemistry . , Nerves ...
(Date:4/17/2014)... journal Current Biology on April 17 have ... The Brazilian insects, which represent four distinct but related ... first example of an animal with sex-reversed genitalia. ... different animals, Neotrogla is the only example ... Kazunori Yoshizawa from Hokkaido University in Japan. , During ...
(Date:4/17/2014)... process whereby the genetic information of DNA is ... which have numerous different functions in living organisms. ... during gene expression, by relating the genetic information ... manufacturing proteins. , By examining the different ... an organism at a given time, researchers can ...
Breaking Biology News(10 mins):Structure of sodium channels different than previously believed 2In sex-reversed cave insects, females have the penises 2Rapid and accurate mRNA detection in plant tissues 2
... the quality of life of human beings, and society ... Onaindia, biologist and person responsible for the Forest Ecology ... the Basque Country (UPV/EHU). This group has been investigating ... the Basque Country (CAV-EAE) for twenty years now. In ...
... the oceans as a result of increasing levels ... on marine ecosystems, according to Michael Maguire presenting ... in Edinburgh this week. Postgraduate researcher Mr ... experiments in which they simulated ocean acidification as ...
... Tiny chemical sensors implanted into patients could help diagnose disease ... Researchers have developed tiny probes comprising gold-coated particles. These can ... monitored remotely using light from a laser. Once ... to it is absorbed then re-emitted, causing nearby proteins in ...
Cached Biology News:The forests of the Basque Country are progressing -- slowly, according to research group 2The forests of the Basque Country are progressing -- slowly, according to research group 3
(Date:1/15/2014)... "The interface is the device," Nobel laureate Herbert ... to be found at the junctures where layers ... of nanotechnology, the interfaces between layers of metal ... such high-tech favorites as spintronics, high-temperature superconductors, ferroelectrics ...
(Date:1/15/2014)... 2014   Niagara Thermal Products is proud to ... Technologies LLC ("B3") as the critical thermal component supplier ... the Army Corps of Engineers.  B3 has developed the ... contaminants and destroys VOCs and other chemical pollutants, allergens ...
(Date:1/15/2014)... and SAN JOSE, California , January 15, ... developing antibody-drug conjugates for cancer, today announced the appointment of ... Dr Reynolds has over 20 years, development experience gained in ... Seattle Genetics. "I am delighted to welcome Tom ...
(Date:1/15/2014)... , January 15, 2014 A study has ... on the Formula 1 track could help to tackle the ... Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) and ... provider Simplyhealth. Telemetry technology, which is inspired by ...
Breaking Biology Technology:A deeper look at interfaces 2Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
... Researchers have completed the first thorough, system-level assessment ... of microbes known as Shewanella. Microbes belonging to ... and cleaning up contaminated areas in the environment. ... Institute of Technology, Michigan State University and the ...
... ... , ... The Honolulu-based Pacific Health Research Institute (PHRI) has received $2.8 million in research funding ... a major lung cancer screening study in Hawaii, for two more years. , , , ...
... , , BOTHELL, Wash., ... a leading developer, manufacturer, and marketer of biopreservation tools for ... BloodStor biopreservation media product platform. The product family includes ... as well as other variants for peripheral blood derived stem ...
Cached Biology Technology:Hidden diversity in key environmental cleanup microbes found by systems biology assessment 2Hidden diversity in key environmental cleanup microbes found by systems biology assessment 3Pacific Health Research Institute Awarded $2.8 Million in Research Funding 2Pacific Health Research Institute Awarded $2.8 Million in Research Funding 3BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 2BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 3
This depletion cocktail is tailored to deplete IgE-bearing (I.e. basophils and mast cells) from whole blood...
... of DNA from agarose gels The SpinPrep Gel ... 150 bp to > 12,000 bp in size from ... the gel slice, followed by adsorption of the DNA ... After a wash step, the purified DNA is eluted ...
This kit is designed to select cells labeled with fluorescein isothiocyanate- (FITC-) conjugated antibodies. Kit includes reagents for labeling 3 x 10 9 cells and EasySep magnet....
... microscope is described by end-users to be ... the fundamentals of light microscopy and electronic ... footprint, it does not require much space ... busy lab environment. The DM-BA300 combines Motic's ...
Biology Products: