HOME >> BIOLOGY >> NEWS
Sequencing the genome of a new kind of methane producer

This press release is also available in German.

About 10 to 25 percent of the world's methane emissions come from flooded rice paddies. Methane is a greenhouse gas produced by various groups of microorganisms (methanogenic Archaea). Oxygen is usually highly toxic for these microorganisms. The major producer of methane in the roots of rice plants is what is known as 'Rice Cluster I' (RC-I) Archaea. The mechanisms that give these Archaea a competitive advantage remained unexplained, because it was impossible to get a pure culture of them. Now, scientists from the Max Planck Institute for Terrestrial Microbiology in Marburg, Germany and the Max Planck Institute for Molecular Genetics in Berlin have fully sequenced the genome of an RC-I archaeon from a methane-producing microbial mixed culture. From the genome sequence, the researchers were able to deduce the existence of a number of enzymatic mechanisms, unknown in methanogenic Archaea until now. The mechanisms help the RC-I Archaea to survive when oxygen is present. They allow the RC-I Archaea to adapt specifically to the oxygen-rich area around the roots of the rice plant. The results explain why RC-I Archaea have a selective survival advantage (Science, July 21, 2006).

In the current study, Max Planck researchers from Marburg and Berlin investigated the complete genome sequence of an RC-I archaeon that appears frequently in the mixed culture MRE50. As a rule, the starting point for analysis of a complete microbial genome is a pure culture -- and its corresponding homogeneous component of genetic information. But in the case of RC-I Archaea, no pure culture was available. So all the genetic information of the mixed culture MRE 50 served as the starting point for sequencing the complete RC-I genome. Such heterogeneous genetic information, stemming from various microorganisms in the mixed culture, is called a metagenome.
'"/>

Contact: Dr. Werner Liesack
Liesack@mpi-marburg.mpg.de
0049-642-117-8720
Max-Planck-Gesellschaft
3-Aug-2006


Page: 1 2

Related biology news :

1. Sequencing method yields fuller picture
2. GenePOPS -- Sequencing Human History: The Genetics and Commerce of Personal Ancestry
3. Sequencing human history -- The genetics and commerce of personal ancestry
4. 454 Sequencing reveals new pathway in RNA interference
5. Sequencing of the oyster mushroom genome
6. Baylor Human Genome Sequencing Center marks end of sequencing effort with chromosome 3
7. Sequencing our seas
8. DOE JGI announces 2006 Community Sequencing Program portfolio
9. Whale bones and farm soil: Sequencing biodiversity
10. Sequencing of marine bacterium will help study of cell communication
11. Unravelling new complexity in the genome

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/31/2017)... , Jan. 31, 2017  Spero Therapeutics, LLC, ... for the treatment of bacterial infections, today announced ... antibacterial candidates from Pro Bono Bio Ltd (PBB) ... of multi-drug resistant forms of Gram-negative bacteria.   The ... Infectives Ltd, a PBB group company. ...
(Date:1/25/2017)... Jan. 25, 2017 The Elements of Enterprise ... lifecycle is comprised of a comprehensive set of ... of maintaining digital identities and providing a secured ... There are significant number of programs opted by ... time by optimizing processes and changing policies. However, ...
(Date:1/21/2017)... Research and Markets has announced the addition of the ... ... voice recognition biometrics market to grow at a CAGR of 19.36% ... present scenario and the growth prospects of the global voice recognition ... considers the revenue generated from the sales of voice recognition biometrics ...
Breaking Biology News(10 mins):
(Date:2/27/2017)... , ... February 27, 2017 , ... The Catalyst ... a few in the Midwest offering premix services and private label organic services. , ... laying hens, according Jos Zamzow, chief operating officer of Dynamite Marketing, which owns the ...
(Date:2/24/2017)... ... February 24, 2017 , ... ... be safely completed in an ambulatory surgery center (ASC) with satisfactory clinical and ... previous two-year TDR studies. , Jake Lubinski, president of AxioMed, commented on ...
(Date:2/24/2017)... Tenn. , Feb. 24, 2017 ... ("Provectus" or the "Company"), a clinical-stage oncology and ... regarding the deadline to participate in its previously ... units, consisting of shares of common stock and ... and holders of listed warrants. ...
(Date:2/24/2017)... 24, 2017  Driven by consumers, preference towards ... the fastest growing categories, finds the recently published ... Personal Care: Multi-regional Market Analysis and Opportunities ... firm Kline. "Biotechnology actives are derived ... more effective for skin and hair care applications," ...
Breaking Biology Technology:
Cached News: