Navigation Links
Avalanche of reactions at the origin of life
Date:1/19/2012

al reactions bringing forth wholly new biomolecules. "This coupling between the catalyst and an organic reaction product is the first step", explains Wchtershuser. "Life arises, if subsequently a whole cascade of further couplings takes place, and this primordial life leads eventually to the formation of genetic material and of the first cells".

The scientists simulated in their experiments the conditions of volcanic-hydrothermal flow channels and established an aqueous-organometallic system that produces a whole suite of different biomolecules, among them the amino acids glycin and alanin. Here the carbon source was provided by a cyano compound and the reducing agent by carbon monoxide. Nickel compounds turned out to be the most effective catalysts in these experiments. The scientists then added the products glycin and alanin to another system, that generated again two new biomolecules. The result: The two amino acids increased the productivity oft he second system by a factor of five.

In future experiments the scientists intend to recreate more precisely the conditions of volcanic-hydrothermal systems, wherein life could have arisen billions of years ago. "For this purpose we simulate first certain stages in the development of a volcanic-hydrothermal flow system in order to determine essential parameters", explains Wchtershuser. "Only thereafter we may engage in a rational construction of a flow reactor".

The results of the scientists around Wchtershuser and Eisenreich show that an origin and evolution of life in hot water of volcanic flow ducts is feasible. The results reveal advantages of the theory compared to other approaches. Within the flow ducts temperature, pressure and pH change along the flow path, and thereby a graded spectrum of conditions is offered that is appropriate for all stages of early evolution up to the formation of genetic material (RNA/DNA).

The most important property of the system is its autonomy: As
'/>"/>

Contact: Dr. Andreas Battenberg
battenberg@zv.tum.de
49-892-891-0510
Technische Universitaet Muenchen
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. UCLA physicists control chemical reactions mechanically
2. New software to measure emotional reactions to Web
3. Chemist stitches up speedier chemical reactions
4. Key enzyme discovered to be master regulator in protein-protein reactions
5. Sorting device for analyzing biological reactions puts the power of a lab in a researcher’s pocket
6. Common chemotherapy drug triggers fatal allergic reactions
7. Newly discovered reactions from an old drug may lead to new antibiotics
8. Researchers shed new light on catalyzed reactions
9. NEI awards new grant to study the biological origins of eye allergies
10. Focus on glaucoma origins continues path toward potential cure
11. 50 million year old cricket and katydid fossils hint at the origins of insect hearing
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... be able to cope with the rising salinity of Arctic ... today is best known for its tundra and polar bear ... 38 million years ago during what is known as the ... temperate forest with brackish water, home to a variety of ... giant tortoises. Much of what is known about the region ...
(Date:7/9/2014)... pain and fever but often can be defeated with antibiotics ... hard to beat. Now, scientists have built a new weapon ... Published in the journal ACS Applied Materials & Interfaces ... kill more of them than medicine alone. , David Leong, ... lie in wait, undetectable in the human body or in ...
(Date:7/9/2014)... sparrow-sized fossil from China challenges the commonly held belief ... the ability to fly. The birdlike fossil is actually ... the remains of a tiny tree-climbing animal that could ... Museum in Blanding, Utah, and Alan Feduccia of the ... Journal of Ornithology . , The fossil of ...
Breaking Biology News(10 mins):Shark teeth analysis provides detailed new look at Arctic climate change 2Shark teeth analysis provides detailed new look at Arctic climate change 3Researchers declassify dinosaurs as being the great-great-grandparents of birds 2
... , WALL, N.J., Dec. 3 ... in wireless public safety and finger-based biometric identification solutions, ... Special Shareholder Meeting held today approved the sale of ... Inc. Of the shares voted, 98.6% were cast in ...
... Preliminary Press Conference Topics Last Call! Press ... Attention PIOs: Sending Press Releases to Fall meeting ... News Media registration information News Media Registration ... coming For important information regarding visas ...
... Have you ever felt overly upset by a social ... Scientists have long known that opium-like painkillers, called opioids, ... emotional stress. Now, a new study reviewed by Faculty of ... in the gene for the opioid receptor can determine the ...
Cached Biology News:BIO-key(R) Shareholders Overwhelmingly Approve Sale of Law Enforcement Division 2BIO-key(R) Shareholders Overwhelmingly Approve Sale of Law Enforcement Division 3AGU fall meeting: Preliminary press conference topics, press pre-registration deadline 2AGU fall meeting: Preliminary press conference topics, press pre-registration deadline 3AGU fall meeting: Preliminary press conference topics, press pre-registration deadline 4AGU fall meeting: Preliminary press conference topics, press pre-registration deadline 5AGU fall meeting: Preliminary press conference topics, press pre-registration deadline 6
(Date:1/15/2014)... January 15, 2014 This webinar will ... and clinical safety assessment in biosimilars. , Regulatory frameworks ... biosimilar drug development, however the complex nature of biopharmaceuticals ... safety and efficacy extremely challenging. Based on the specific ...
(Date:1/15/2014)... TX (PRWEB) January 15, 2014 More ... disease, and about 1 in 3 seniors will die ... source ). These jaw-dropping figures have shocked many Americans ... and, hopefully, help prevent these tragic age-related cognitive disorders. ...
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how latent viruses ... is the Epstein Barr Virus (EBV), and one of these ... chronic inflammatory disease that destroys the body’s joints. As predicted ... high concentrations of EBV DNA in their bodies (1). ...
(Date:1/15/2014)... 2013 was a banner year of continued innovation ... continued independent research led by the team at Wake ... million grant from the Susanne Marcus Collins Foundation, had ... reviewed journal, Amy Grant highlighted Brainwave Optimization® in First ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3
... BNVI ) will present findings on the mechanism ... BN108 at the American Association of,Cancer Research (AACR) being ... CA, April 12 - 16, 2008., Bionovo,s poster ... death) induced by BN107 and BN108. As explained by ...
... Announces Change to Unaudited Financial Results Released March 18, ... ... Bulletin Board: NGNM) announced today that it had filed with the,Securities and Exchange ... A copy of this annual report can be found at, http://www.SEC.gov ., ...
... researchers at ... with internal solutions, REDWOOD CITY, Calif., April 15 ... life science researchers, and,Pfizer Pharmaceuticals, Inc. (NYSE: PFE ... a strategic,partnership today. This new multi-year partnership promotes enterprise-wide,deployment ...
Cached Biology Technology:Bionovo to Present Recent Findings of BN107 and BN108, Its Anticancer Agents, at the American Association of Cancer Research 2NeoGenomics Files Annual Report on Form 10-KSB with the SEC 2Ingenuity Systems and Pfizer Announce Strategic Partnership for Pathway Analysis 2Ingenuity Systems and Pfizer Announce Strategic Partnership for Pathway Analysis 3
Request Info...
... from E. coli is a ... also contains both 5'--3'and 3'--5' ... activity enables the enzyme to ... the DNA as starting points ...
Request Info...
... E. coli containing a clone of the human ... Topoisomerase II alters the topological state of nucleic ... a transient break which generates a separate DNA ... double-stranded DNA passage mechanism, the enzyme can relax ...
Biology Products: