Navigation Links
What green algae are up to in the dark
Date:2/14/2013

bacteria. First they introduced the corresponding genes of the green algae into the gut bacterium Escherichia coli, for example, the gene for the pyruvate:ferredoxin oxidoreductase. E. coli then produced the proteins according to this blueprint. Happe's team isolated them from the bacterial cells and examined them like a construction kit. In the test tube, the biologists analysed how different combinations of proteins interacted with each other under specific environmental conditions.

"Ancient enzyme" discovered

In so doing, they found out that, under stress in the dark, the algae switch to a metabolic pathway which is normally only found in bacteria or single-celled parasites. "Chlamydmonas has an evolutionarily ancient enzyme", explains Jens Noth from the working group Photobiotechnology. "With the help of vitamin B1 and iron atoms, it gains energy from the breakdown of sugars." This energy is then used by other green algal enzymes, the hydrogenases, to form hydrogen. The unicellular microalgae switch on this metabolic pathway when they suddenly encounter oxygen-free conditions in the dark. Because, like humans, the green algae need oxygen to breathe if they cannot draw their energy from sunlight. The formation of hydrogen in the dark helps the cells to survive these stress condition. "With this knowledge, we have now found another piece of the puzzle to get an accurate picture of H2 production in Chlamydomonas", says Thomas Happe. "In future, this could also help to increase the biotechnologically relevant light-dependent H2 formation rate."


'/>"/>
Contact: Prof. Dr. Thomas Happe
thomas.happe@rub.de
49-234-322-7026
Ruhr-University Bochum
Source:Eurekalert

Page: 1 2

Related biology news :

1. Cities can reduce greenhouse gas emissions by 70 percent, says U of T researcher
2. New guide will allow electric utilities to develop Green Button Web tools
3. Aarhus University builds research station in North Greenland
4. In beef production, cow-calf phase contributes most greenhouse gases
5. Analysis of Greenland ice cores adds to historical record and provide glimpse into climates future
6. Toward reducing the greenhouse gas emissions of the Internet and telecommunications
7. Ancient red dye powers new green battery
8. Rice cultivates green batteries from plant
9. Fire and ice: Wildfires darkening Greenland snowpack, increasing melting
10. Greenphire CEO Sam Whitaker speaks on Sunshine Act and Clinical Trial Payments
11. An energy conscious workforce: New research looks at how to encourage staff to go green
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... -- Earlier this year Donald Spector , Chairman of ... the most prolific inventors in the world, got a ... to third party agencies. Spector envisioned this technology even ... earliest known patents in this area. Now major technology ... care, elder care and hospital applications. This technology has ...
(Date:11/21/2014)... , Nov. 20, 2014 C-Labs LLC, ... the Internet of Things (IoT), today announced the appointment ... chief operating officer. Previously a strategic advisor to the ... and operations. Mr. Traynor is based out of the ... He reports to Chris Muench , Chief Executive ...
(Date:11/18/2014)... -- The Secure Identity & Biometrics Association (SIBA) and ... formation of The Airport Entry and Exit Working ... Biometric Entry and Exit Solutions Framework for Airports ... BORDERPOL, the international non-profit organization that works directly ... border security, traveler and migration systems. ...
Breaking Biology News(10 mins):Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3
... stomach may be nearly as unique as your fingerprint, ... Medicine who have embarked on the early stages of ... detect all known types of microbes and borrowing statistical ... MD, a postdoctoral scholar in infectious diseases and geographic ...
... question of whether amino acids in sandwich-like proteins are ... the protein-folding process is best answered by "all of ... Houston. , This discovery, reported in today's issue of ... benefit future research on treatments for diseases related to ...
... Ebola virus reproduction in laboratory-grown cells is severely ... further study as possible treatments for Ebola virus ... by the National Institute of Allergy and Infectious ... of Health (NIH). , The researchers, whose paper ...
Cached Biology News:Stanford gut check shows diversity of intestinal ecosystem 2Stanford gut check shows diversity of intestinal ecosystem 3Conserved amino acids play both structural and mechanistic roles in sandwich-like protein 2Scientists discover how Ebola virus infects cells 2
(Date:12/15/2014)... Dec. 15, 2014 Organovo Holdings, Inc. ... focused on delivering breakthrough 3D bioprinting technology,  today ... collaborators of its exVive3D TM Human Liver ... in full commercial release on November 18, has ... in several awards for innovation. Most ...
(Date:12/13/2014)... N.C. (PRWEB) December 13, 2014 CanDiag, ... Charlotte) spin-out company has changed its name to OncoTab, ... accurate representation of where we are today,” said CEO ... extended our platform’s applications beyond breast cancer diagnostics to ... a reflection of that evolution.” , Founded in 2011 ...
(Date:12/13/2014)... USA, and TAICHUNG, Taiwan (PRWEB) December 12, 2014 ... despite less rosy indicators in overall global economic growth, ... for optics and photonics , said in a featured ... Conference) on 5 December at the National Chung Hsing ... energy, which is being integrated into future energy supplies ...
(Date:12/13/2014)... Dec. 12, 2014  Vermillion, Inc. (NasdaqCM: VRML), a bio-analytical ... appointments of Veronica G. H. Jordan , Ph.D., ... Board of Directors, bringing the total number of directors ... Jim LaFrance , Chairman, President, and Chief ... to announce the appointments of Veronica and David to ...
Breaking Biology Technology:Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 2Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 3CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 2Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 3Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 4Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 5Vermillion Strengthens Board of Directors with Appointments of Veronica Jordan, Ph.D., and David Schreiber 2Vermillion Strengthens Board of Directors with Appointments of Veronica Jordan, Ph.D., and David Schreiber 3
... PITTSBURGH, Oct. 7 Today the National Collegiate ... of BMEStart, an award recognizing undergraduate excellence in ... other biomedical competition (BMEidea) because of its focus ... much experience with product development. , The ...
... (Nasdaq: SGMO ) today announced the pricing of a ... The offering is expected to close on or about October ... In addition, Sangamo has granted the underwriter a 30-day ... common stock to cover over-allotments, if any. , ...
... , DUBLIN, October 7 , ... Only - , - Direct Comparison ... Efficacy , Shire plc (LSE: SHP, ... the publication in Clinical,Nephrology of findings from a head-to-head clinical ...
Cached Biology Technology:NCIIA Announces New Undergraduate Competition 2Sangamo Announces Pricing of Public Offering of Common Stock 2Sangamo Announces Pricing of Public Offering of Common Stock 3Data From a Head-to-Head Crossover Study Evaluating FOSRENOL(R) and Sevelamer Published Today 2Data From a Head-to-Head Crossover Study Evaluating FOSRENOL(R) and Sevelamer Published Today 3Data From a Head-to-Head Crossover Study Evaluating FOSRENOL(R) and Sevelamer Published Today 4Data From a Head-to-Head Crossover Study Evaluating FOSRENOL(R) and Sevelamer Published Today 5Data From a Head-to-Head Crossover Study Evaluating FOSRENOL(R) and Sevelamer Published Today 6
... HistoMark Biotin Streptavidin-HRP Systems provide rapid, ... intracellular antigens in frozen or paraffin-embedded ... These systems also facilitate double or ... be performed simultaneously with primary antibodies ...
... content or with significant secondary structure are ... subjected to PCR result in little or ... be increased by the addition of enhancing ... an effective PCR enhancer for GC-rich templates., ...
... EPICENTREs patented MasterAmp™ 10X PCR ... performance and allows improved sensitivity and ... templates. Using MasterAmp™ PCR Enhancer in ... of DNA melting, increases enzyme?s thermal ...
... description: The "egg crate" style strip holder ... flat bottom strips. Linkage: This CLS number ... easily match Cornings product number. If showing ... old Sigma-Aldrich number (Z71,456-9) or contact customer ...
Biology Products: