Navigation Links
Champion hydrogen-producing microbe
Date:12/14/2010

wide variety of chemical environments and have the metabolic tricks to show for it.

All cyanobacteria have the ability to fix carbon from the atmosphere, stuffing it away in starch or glycogen, but Cyanothece is among the rarer strains that can also fix nitrogen, converting atmospheric nitrogen to ammonia and eventually to larger nitrogen-rich molecules.

Because it can fix both carbon and nitrogen, when conditions warrant Cyanothece can survive on air, water and sunlight alone. It is about as self-reliant an organism as it is possible to be.

There is one catch. Nitrogenase is very sensitive to oxygen and so carbon fixing (photosynthesis), which produces oxygen as a byproduct, has to separated from nitrogen-fixing in some way.

Cyanothece accomplishes this by time division; it has an internal biological clock that establishes a circadian rhythm. (Cyanobacteria are the only prokaryotes (organisms without nuclei) that have a clock.)

So Cyanothece fixes carbon glycogen molecules during the day, producing oxygen as a byproduct, and it fixes nitrogen in ammonia during the night, producing hydrogen as a byproduct. For every nitrogen molecule that's fixed, says Pakrasi, one hydrogen molecule is produced.

Each half of the cycle powers the other. The glycogen produced in the day is consumed in the energy intensive process of fixing nitrogen at night. The fixed nitrogen produced at night is used to make nitrogen-containing proteins during the day.

Pakrasi, who is also the director of I-CARES, the International Center for Advanced Renewable Energy and Sustainability, calls the microbes biobatteries because they store daytime energy for use at night and nighttime energy for use in the day.

The separation in time prevents the two metabolic processes from competing with one another. At night the bacteria begin to metabolize the glycogen (or respire). Quickly consuming intracellular
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Champions Biotechnology Reports Additions to its Management Team
2. Orthopedics Entrepreneur Named BioCrossroads Watanabe Life Sciences Champion of the Year
3. Champions Biotechnology Reports Fiscal 2011 First Quarter Financial Results
4. Champions Biotechnology Reports Fiscal 2010 Third Quarter Financial Results
5. Champions Biotechnology Enters into Licensing Agreement with Yale University and Southern Research Institute for the Repurposing of Bithionol for Oncology
6. Champions Biotechnology to Present Data at AACR-EORTC 2009 Regarding the Predictability of Biomerk Tumorgraft(TM) Platform to Guide Personalized Cancer Treatment and Accelerate Oncology Drug Development
7. Champions Biotechnology Expands Collaboration to Test Oncology Therapeutic in Biomerk Tumorgrafts(TM)
8. Champions Biotechnology Reports Fiscal 2010 First Quarter Financial Results
9. Champions Biotechnology and PinnacleCare Enter Into Personalized Oncology Collaboration Agreement
10. Champions Biotechnology to Present at Rodman & Renshaws Eleventh Annual Healthcare Conference
11. Champions Biotechnology to Deploy its Technology to Guide Development of Oncology Therapeutic for Global Biotech Leader
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Champion hydrogen-producing microbe
(Date:7/10/2014)... Understanding the need for better quality and ... gap that currently exists in this area, ChanTest has ... of validated ion channel and GPCR cell lines. ... ion channels control many critical physiological functions throughout the ... potential to treat a variety of human diseases. ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 EvoDerma ’s ... convenience. This rejuvenating device now comes with a second treatment ... over time. , The new cup is thinner on the ... works to target rough, thin and uneven surfaces on the ... cup for a stimulating treatment on areas such as the ...
(Date:7/10/2014)... July 10, 2014 /PRNewswire-iReach/ -- Tute Genomics, ... today announced an agreement with Lineagen, Inc., ... Lineagen,s NextStep Dx PLUS.  Lineagen, focused ... neurological disorders, currently offers FirstStep Dx ... service used by healthcare providers as a ...
(Date:7/10/2014)... microscopic polymer light resonators that expand in the ... Photonics Laboratory have developed new optical sensors with ... sensors are ideal for detecting trace gas concentrations ... nature, and immunity to electromagnetic interference. , Although ... the MIT team conceived an extremely sensitive, compact ...
Breaking Biology Technology:Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Swell new sensors 2
... ... Presence in China, CAMBRIDGE, Mass., April 22 ... a major new research and,development center in Beijing. The initiative is ... a,long-term presence in China., The new facility will be used ...
... to Threat of Bioterrorism, Says UK Board ... Member General Lord Guthrie, ... to develop and deploy technology that can neutralize and destroy,a biohazardous ... has partnered with General Lord Guthrie,former chief of the British Defense ...
... April 22 /PRNewswire-FirstCall/ - Lorus Therapeutics Inc.,(,Lorus,), ... and,development of pharmaceutical products and technologies for ... of a development program aimed at,expanding the ... for the treatment of superficial bladder cancer., ...
Cached Biology Technology:Genzyme to Build New R&D Center in Beijing 2Genzyme to Build New R&D Center in Beijing 3Genzyme to Build New R&D Center in Beijing 4Genzyme to Build New R&D Center in Beijing 5Boston-Based BioDefense Corp. Announces New UK Partnership to Expand Markets for Biohazard Protection 2Boston-Based BioDefense Corp. Announces New UK Partnership to Expand Markets for Biohazard Protection 3Lorus initiates development program exploring novel route of administration for LOR-2040 2Lorus initiates development program exploring novel route of administration for LOR-2040 3Lorus initiates development program exploring novel route of administration for LOR-2040 4
(Date:7/10/2014)... of enzymes known as heme enzymes, due to the ... At the centre of the heme cofactor is an ... reacting heme is in an intermediate state called Compound ... is whether this oxidation involves just an oxygen atom ... question has implications for understanding oxidative processes within living ...
(Date:7/10/2014)... (ACS) announced today that Courtney Aldrich, Ph.D., will ... Diseases as editor-in-chief. With the first issue ... journal will meet a growing demand for a ... , "Our vision is to develop a journal ... the basic science that advances the field and ...
(Date:7/10/2014)... from The University of Texas Health Science Center at ... (IYG), a health education program designed to delay sexual ... dating violence behaviors among minority youth. , According to ... of high school youth are victims of physical dating ... percent are victims of emotional dating violence. Previous studies ...
Breaking Biology News(10 mins):Neutron crystallography solves long-standing biological mystery 2Neutron crystallography solves long-standing biological mystery 3ACS Infectious Diseases: Unique chemistry journal names editor 2It's Your Game ... Keep It Real reduces dating violence among minority youth 2
... NEW YORK, February 4, 2011 A defining feature ... today,s age of computational science, this means higher standards ... that generated the results along with the published research ... widely accessible, facilitating re-use and verification of results. ...
... the annual meeting of the American Association for the Advancement ... climate change could increase exposure and risk of human illness ... studies projecting impacts to be felt within 30 years. ... warmest for sea surface temperatures, NOAA and our partners are ...
... Among the many differences between girls and boys, add the ... the list. , Results of a double-blind, placebo-controlled, dose-response study ... general, boys get a greater rush and more energy from ... caffeine had a positive effect on their athletic performance. Girls ...
Cached Biology News:AAAS Symposium: New research facilitates scientific knowledge transfer 2Climate projections show human health impacts possible within 30 years 2Climate projections show human health impacts possible within 30 years 3Climate projections show human health impacts possible within 30 years 4High-caffeine-consuming boys get greater rush from caffeine than girls 2High-caffeine-consuming boys get greater rush from caffeine than girls 3
...
Jak3 Antibody Ship: Hot Store: -20 C...
WASF2 Immunogen: WASF2 (NP_008921, 73 a.a. ~ 173 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
Applications: Western blotting Stability: Room temperature, indefinitely ...
Biology Products: