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

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:8/28/2014)... German . ... to a striking pattern of blue stripes alternating with golden ... cells, and yellow cells emerge during growth in the skin ... mosaic to compose the characteristic colour pattern. ,While ... interact to form proper stripes, the embryonic origin of the ...
(Date:8/28/2014)... Minn. A Mayo Clinic researcher and his collaborators ... up and enhance the process of re-engineering cells for ... uses network biology methods to aid stem cell engineering. ... engineering are described in two back-to-back papers in the ... a broad range of uses for all types of ...
(Date:8/28/2014)... groups and clinicians is critical to the development ... of Georgia research. , A qualitative study of ... that role models for successful breastfeeding help positively ... "Mothers who received that support are more likely ... Alex Anderson, an associate professor in the College ...
Breaking Biology News(10 mins):How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3New tool aids stem cell engineering for medical research 2Breastfeeding study shows need for effective peer counseling programs 2
... life sciences journal F1000Research is that ... the article. Openly sharing data is an important step in ... published research, as well as enabling data reuse. ... the data in the journal,s articles to be assessed and ...
... balanced interplay of four molecules that trigger and govern ... an important basic science discovery, it helps explain why ... genes cannot fight infection effectively, and develop rare and ... of a number of different types of cells that ...
... poison-dart frog, a red male isn,t much brighter than a green ... the green and red variants of the same species of frog ... Ecology and Sociobiology , led by Beatriz Willink of the Universidad ... The bright colors of poison-dart frogs serve not only ...
Cached Biology News:F1000Research launch data plotting tool 2Molecular interplay explains many immunodeficiencies 2Green poison-dart frog varies mating call to suit situation 2
(Date:8/28/2014)... Nevada City, CA (PRWEB) August 28, 2014 ... and sanitation products for the food processing industry, is ... conducting a side-by side comparison of the E2 soap ... Q E2 Sanitizing Foam Soap . Hand hygiene ... pathogens in the food processing environment. Six key criteria ...
(Date:8/28/2014)... WEST LAFAYETTE, Ind. A new research ... "nanomechanical" properties of tiny structures undergoing stress ... insights to improve designs for microelectronics and ... spectroscopy, reveals information about how heating and ... their mechanical properties. Researchers have discussed the ...
(Date:8/28/2014)... The ability for organizations to attract ... allow individuals to perform at the highest of levels, ... looking to compete in this post–recession era. The ... as the sector increasingly focuses on the importance of ... have real results on the organization's development and the ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 Sterlitech is ... polymeric membranes to its stable of products . ... molecular weight cut-offs and include membrane filters with surface ... increase in customer demand for our membrane process testing ... variety of flat sheet membranes,” explains Sterlitech President Mark ...
Breaking Biology Technology:Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 2
... launched interactive, personalized services for Milwaukee drivers through ... announced Thursday. Traffic.com will provide area commuters with ... roadway traffic conditions including congestion levels, incidents, travel ... news release. , ,Data for the site will ...
... actors from two hemispheres came together outside Madison Friday ... Kazusa DNA Research Institute signed off on ... three-year agreement will involve exchanges between the Kazusa Institute, ... genome, and Promega with its technology for expressing and ...
... Systems, Inc. on Monday announced a 20.3 percent increase in ... quarter of production and shipment of its MRI monitor to ... year-end numbers, the company said fourth-quarter net sales for fiscal ... $6,667,617 for the same period of fiscal year 2004. , ...
Cached Biology Technology:Promega, Japanese lab announce partnership 2
MOUSE ANTI SIMIAN VIRUS 5 Immunogen: Simian virus 5...
... Serum • Beagle serum is collected from ... year of age Available Anticoagulants: ... N-06: K2EDTA N-08: Potassium ... Alsevers N-05: ACD N-07: ...
MOUSE ANTI BOVINE TROPONIN I...
Normal donkey serum collected from healthy normal donkeys....
Biology Products: