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:12/10/2014)... , December 9, 2014 ... ITN,s BCARD Platform   ... enterprise meeting scheduling solutions for business-to-business (B2B) events, ... world leader in mobile near-field communication (NFC), Bluetooth ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow ...
(Date:12/3/2014)... IRVINE, Calif. , Dec. 2, 2014 /PRNewswire/ ... of globally deployed, innovative test solutions for military, ... the newest version of its successful TS-900 ... the performance and features of high-end systems to ... with outstanding value compared to traditional ATE. ...
(Date:11/21/2014)... , Nov. 20, 2014 Strict laws against ... are piloting the North American and European automotive sector ... growing, gesture recognition systems that are intuitive and able ... in the industry. New analysis from ... Recognition Market in Europe and ...
Breaking Biology News(10 mins):Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4
... can often only be solved using forensics to piece ... Helmut Schmitz from the Institute of Zoology at the ... Peter Grnberg Institut at the Forschungzentrum Jlich went through ... beetles of the genus Melanophila and their ...
... This press release is available in ... I,m depressed and I,m depressed because I eat" in the ... research being undertaken by scientists affiliated with the University of ... Medicine. "In addition to causing obesity, rich foods can actually ...
... the selective force that preserves adaptive traits in organisms and ... well known that evolutionary change in organisms also trigger fundamental ... prime example of this evolutionary feedback loop in a few ... Colonial times trapped a fish called the alewife. ...
Cached Biology News:Forensics ferret out fire beetle secret 2Forensics ferret out fire beetle secret 3Scientists start explaining Fat Bastard's vicious cycle 2Not a 1-way street: Evolution shapes environment of Connecticut lakes 2
(Date:12/17/2014)... 2014 “Never say, ‘I cannot ... Marburg’s Department of Physics, advises young women pursuing ... released SPIE Women in Optics 18-month planner ... to ask questions.” , In the annual planner, ... occupations ranging from university professor and laboratory researcher ...
(Date:12/17/2014)... This report is a professional ... For an overview analysis, the report introduces quartz ... structure, industry overview, policy analysis, and news analysis, ... has witnessed rapid development with key manufacturers increasing ... report mentions quartz tubing upstream raw materials and ...
(Date:12/17/2014)... -- Vermillion, Inc. (NASDAQ: VRML ), a bio-analytic ... next step in its expanded strategy to rebuild the ... naming of current Chief Operating Officer, Valerie Palmieri ... Chairman of the Board and CEO James LaFrance ... are effective January 1, 2015. "Jim and ...
(Date:12/17/2014)... --  Synageva BioPharma Corp. (NASDAQ: GEVA ... disorders, announced today its presentation at the upcoming J.P. ... Francisco, CA. Sanj K. ... on Monday, January 12, 2015, at 9:00 a.m. PST ... and may be accessed from the "Webcasts & Presentations" ...
Breaking Biology Technology:Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 32020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4
... MOUNTAIN VIEW, Calif., Dec. 4 Based on ... & Sullivan recognizes Honeywell Enraf with the 2008 ... Honeywell Enraf,s comprehensive suite of blending products facilitates ... and other materials, but also minimizes the end-products, ...
... of Life Technologies Corporation (NASDAQ:LIFE), a provider of ... announced that its technology for next-generation genomic analysis, ... Science Innovation of the Year for 2008 by ... the life science industry. In making the announcement ...
... an estimated ten percent of pregnant women in the U.S. ... cigarette byproducts from mothers who smoke affects an estimated 420,000 ... , Now, in the first study of its kind, a ... umbilical cord blood to better understand the fetal health risks ...
Cached Biology Technology:Frost & Sullivan Commends Honeywell Enraf for Cutting-Edge Products and Post-Sales Support 2Frost & Sullivan Commends Honeywell Enraf for Cutting-Edge Products and Post-Sales Support 3 Applied Biosystems SOLiD System Named Life Science Innovation of the Year : The Scientist Magazine Cites the Technology's High Throughput, Lower Sequencing Cost, and Rapid Technology Innovation for Unlocking New Approaches to Clinical Research 2 Applied Biosystems SOLiD System Named Life Science Innovation of the Year : The Scientist Magazine Cites the Technology's High Throughput, Lower Sequencing Cost, and Rapid Technology Innovation for Unlocking New Approaches to Clinical Research 3 Applied Biosystems SOLiD System Named Life Science Innovation of the Year : The Scientist Magazine Cites the Technology's High Throughput, Lower Sequencing Cost, and Rapid Technology Innovation for Unlocking New Approaches to Clinical Research 4 Applied Biosystems SOLiD System Named Life Science Innovation of the Year : The Scientist Magazine Cites the Technology's High Throughput, Lower Sequencing Cost, and Rapid Technology Innovation for Unlocking New Approaches to Clinical Research 5Cutting the cord to determine babies' health risk from toxic exposure 2Cutting the cord to determine babies' health risk from toxic exposure 3Cutting the cord to determine babies' health risk from toxic exposure 4
Rat Epidermal Keratinocytes (REK) (>500,000 cells)...
anti-Yan 8B12H9...
sPLA2-XII Human, Rabbit Polyconal Antibody Anti-Human sPLA2-XII Antibody was raised in rabbits against Human sPLA2-XII His-Tagged Fusion Protein Antigen: The recombinant human protein sPLA-XII...
... Expand the computing power of your ValveBank ... sequences with a PC computer running Windows 98, ... load unlimited programs to disk, print out program ... memory in one simple step., EasyCode is used ...
Biology Products: