Navigation Links
Photosynthesis: The last link in the chain
Date:1/4/2013

ATP and NADPH, both of which are required for synthesis of sugars from CO2. This implies that the allocation of electrons between the photosystems can be regulated. An electron transporter called ferredoxin, which receives electrons directly from PSI, acts as the junction that connects the two. "It was therefore proposed, more than 30 years ago, that a so-called ferredoxin-plastoquinone reductase (FQR) must exist, which ensures that electrons can be re-injected into the electron transport chain, and thus allows for cyclic electron transport," Leister explains, "but despite intensive searches, no such enzyme had been found."

In 2008, Leister's team identified a protein they called PGRL1, and showed that it was able to interact with PSI and with other factors known to participate in cyclic electron transport. In their latest study, they have been able to characterize the precise biochemical function of PGRL1. It turns out that the protein is the long-sought FQR that plays a central role in the regulation of cyclic electron flow. "In the long term, this finding may help us to improve photosynthetic performance by replacing or modifying specific components of the electron transport chain," Leister points out.

Pivotal regulators such as PGRL1 could possibly be tuned in a targeted fashion so as to enhance the efficiency of photosynthesis and thus increase yields in crop plants grown under controlled conditions. Furthermore, a complete understanding of the structure and regulation of the photosystems is a prerequisite for the development of methods that would allow one to optimize the process of photosynthesis for various applications such as raising crop yields, designing new types of solar cells or generating molecular hydrogen for use as an environmentally friendly energy source.


'/>"/>

Contact: Kathrin Bilgeri
kathrin.bilgeri@lmu.de
49-892-180-6938
Ludwig-Maximilians-Universitt Mnchen
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Oil and water: An icy interaction when oil chains are short, but steamy when chains are long
2. Chain reaction in the human immune system trapped in crystals
3. Pilot Results Move GHX Closer to Delivery of Healthcare Industrys First Implantable Device Supply Chain Solution
4. Stanford scientists document fragile land-sea ecological chain
5. Copper chains: Study reveals Earths deep-seated hold on copper
6. Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2013)... Access to Research Careers) Program has announced the ... Biology (SDB) 72nd Annual Meeting in Cancun, Mexico ... to promote the entry of students, postdoctorates and ... the basic science community and to encourage the ... Annual Meeting. , Awards are given to poster/platform ...
(Date:5/16/2013)... The endothelium, the cellular layer lining the ... a few hundred nanometers in thickness, this super-tenuous ... and tissue compression to create a unique and ... to partition tissues from the body,s circulatory system. ... the barrier must be physically breached to ...
(Date:5/16/2013)... are about 23 million years old give unprecedented ... order, one of the most species-rich groups among ... paleontologist Professor Bettina Reichenbacher from the Division of ... and Environmental Sciences at Ludwig-Maximilians-Universitaet (LMU) in Munich ... fish fossils which they assign to the group ...
Breaking Biology News(10 mins):Endothelium, heal thyself 2Endothelium, heal thyself 3Endothelium, heal thyself 4Paleontology: The eloquence of the otoliths 2Paleontology: The eloquence of the otoliths 3
... Waterhouse Hawkins was a 19th-century British artist and naturalist ... world and its pre-human inhabitants. Hawkins drew worldwide attention ... a dinosaur skeleton, Hadrosaurus foulkii , at The ... museum prepares to remount a cast of Hadrosaurus in ...
... are sources of "good fat" has increased worldwide demand ... popular, enjoyed as condiments, appetizers, spreads, and additions to ... enjoying superstar status in kitchens around the world. ... borne out by modern science, as studies of olive-consuming ...
... to help determine the shapes and sizes of tiny ... down to the micron level (comparable to the tiniest ... study in Optics Letters, a journal published ... instrument likely will help improve computer models used to ...
Cached Biology News:Academy publishes first biography of artist-naturalist Benjamin Waterhouse Hawkins 2Academy publishes first biography of artist-naturalist Benjamin Waterhouse Hawkins 3Saltwater olives 2Scientists demonstrate the sharpest measurement of ice crystals in clouds 2
(Date:5/20/2013)... 20, 2013 On 25-28 July, 2013, ... in Paris - the beautiful city of lights. , ... Medicine is revolutionizing the medical world. Understanding and integrating ... the hallmark of this transformation. Much of the present ... the epidemiologic studies of large cohorts that do not ...
(Date:5/20/2013)... Kitware, a leader in data visualization, today ... exploration of hospital costs across the United States ... recent release of “Medicare Provider Charge Data,” a dataset ... from the Centers for Medicare & Medicaid Services. , ... hospitals across the country has sparked considerable controversy; however, ...
(Date:5/20/2013)... (PRWEB) May 20, 2013 In Early ... the field of biotoxin related illnesses , announced his ... country able to advance his protocol for treating Chronic ... became the third physician to achieve certification in the ... Physicians, able to practice the Shoemaker Protocol in other ...
(Date:5/20/2013)... CA (PRWEB) May 20, 2013 The ... announced the appointment of Lisa Baird as Executive Director. ... July 8, 2013. The WMIS vision is ... applications to understand and effectively treat diseases in the ... Society (WMIS) was established in 2011 by integrating the ...
Breaking Biology Technology:The International Congress on Personalized Medicine - Up Close and Personalized 2013 in Paris 2Kitware Enables Interactive Exploration of CMS Medicare Data 2Dr. Ritchie Shoemaker Certifies Third Physician in His Treatment Protocol for Chronic Inflammatory Response Syndrome (CIRS) 2WMIS Appoints Lisa Baird as Next Executive Director 2
... gloves made from U.S.-sourced guayule rubber that ... allergy, MARICOPA, Ariz., April 24 Yulex Corporation, ... for medical devices, received,510(k) clearance from the U.S. Food ... made from guayule, a desert crop native to the,U.S. ...
... /PRNewswire/ - Aegera Therapeutics Inc. is very,pleased to ... executives to its Board of Directors: Mr. Jeremy ... Limited, and Mr. Gary,Littlejohn, Managing Director of Desjardins ... and networks will be,critical for Aegera as we ...
... ... Professionals Week, ABBOTT ... Professionals Week (Lab Week), Abbott today,announced the winners of the ... young people to the clinical,laboratory profession, the Facebook initiative and ...
Cached Biology Technology:FDA Clears First Medical Product Made From Yulex(R) Natural Rubber 2Aegera Therapeutics welcomes two experienced executives to its board of directors 2Abbott Announces Labs Are Vital(TM) Facebook Scholarship Contest Winners 2Abbott Announces Labs Are Vital(TM) Facebook Scholarship Contest Winners 3Abbott Announces Labs Are Vital(TM) Facebook Scholarship Contest Winners 4Abbott Announces Labs Are Vital(TM) Facebook Scholarship Contest Winners 5
The BD CBA Human Apoptosis Kit can be used to quantitatively measure,cleaved PARP, Bcl-2, and active Caspase-3 protein levels in a single sample. The,Kit performance has been optimized for analysis o...
... proteases/caspases initiates apoptosis in mammalian cells. ... provides a simple and convenient means for ... in intact cells. The assay utilizes ... linked to rhodamine 110 (D2R), a reported ...
The PROTEAN II slab gel casting stand is a component of the PROTEAN II XL and xi casting apparatus. It is supplied with gaskets....
... direct antibiotic-based selection system for recombinant identification. ... eliminating the need for costly color screening. ... to 100% accuracy in recombinant selection. pLivSelect ... colony picking. This cloning kit can be ...
Biology Products: