Navigation Links
Scientists unlock mystery in important photosynthesis step
Date:2/19/2010

ns were having their effect," Redding explained. "Unraveling that has led to the discovery of how charge separation the moment when electromagnetic energy is converted to chemical energy actually occurs."

The team at the Max Planck Institute (MPI) was led by Alfred Holzwarth. His coworkers, Marc Mller and Chavdar Slavov, used lasers that sent out pulses of light lasting only 60 millionths of one billionth of a second to investigate the electron transfer processes in the two branches of PSI. This allowed them to look at extremely early events in the photosynthetic mechanism, events occurring in just a few picoseconds (a millionth of a millionth of a second), which is a time so short that a typical lattice atom could only execute a dozen oscillations on its lattice site.

This extremely sophisticated experiment and analysis required two years of laboratory effort from Rajiv Luthra, a graduate student in the Redding laboratory, to prepare a sample of sufficient purity to use. To interpret the observations, the researchers at the MPI had to develop a specific kinetic modeling approach that allowed them to estimate the individual electron transfer rates within the two branches. Comparison of mutants made in each branch with the non-mutant PSI was crucial to untangle these rates.

The current research is important for two separate reasons. Firstly, an understanding of how these complex processes work in Nature is crucial to future fundamental research in photosynthetic reaction centers, and this discovery may well be universal. Secondly, the use of two charge separation devices working cooperatively to maximize efficiency is a design theme that may well be applied in future efforts to create artificial photosynthetic devices.

Our society has urgent need of a renewable source of fuel that is widely distributed geographically, abundant, inexpensive, and environmentally clean. The use of solar energy to produce a clean fuel such as hydroge
'/>"/>

Contact: jenny Green
jenny.green@asu.edu
480-241-6608
Arizona State University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. UK scientists working to help cut ID theft
2. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
3. Comet probes reveal evidence of origin of life, scientists claim
4. Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
5. Male elephants get photo IDs from scientists
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
8. Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs
9. Clemson scientists shed light on molecules in living cells
10. Scientists tackle mystery mountain illness
11. T. rex quicker than Becks, say scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists unlock mystery in important photosynthesis step
(Date:11/21/2014)... 2014  Earlier this year Donald Spector , ... one of the most prolific inventors in the world, ... from Smartphones to third party agencies. Spector envisioned this ... of the earliest known patents in this area. Now ... military, child care, elder care and hospital applications. This ...
(Date:11/21/2014)... , Nov. 20, 2014 C-Labs LLC, a ... Internet of Things (IoT), today announced the appointment of ... operating officer. Previously a strategic advisor to the firm, ... operations. Mr. Traynor is based out of the C-Labs ... reports to Chris Muench , Chief Executive Officer. ...
(Date:11/18/2014)... WASHINGTON , Nov. 18, 2014  The ... Security Industry Association today jointly announce the formation ... and release of its Identity and Biometric ... (Framework). The Framework received official support from BORDERPOL, ... governments to improve and provide expertise regarding border ...
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
... in the world, but only a handful are responsible ... in agricultural damage globally every year. Nematodes are small ... living cells. Now, Iowa State University researchers have ... one of the most destructive nematodes: Meloidogyne incognita ...
... Sept. 4, 2008 As the anniversary of the ... has issued a new podcast describing an array of ... The podcast is the sixth episode in ACS,s ... episodes posted twice monthly, Global Challenges examines daunting problems ...
... including researchers at the HudsonAlpha Institute and Stanford ... other organizations, today publishes a comprehensive analysis of ... results are the first from the Cancer Genome ... by the National Cancer Institute and the National ...
Cached Biology News:ISU researchers help map first plant-parasitic nematode genome sequence 2New 'chemical radar' among national security innovations in ACS podcast 2New 'chemical radar' among national security innovations in ACS podcast 3Collaboration between researchers yields more comprehensive portrait of brain cancer 2
(Date:11/22/2014)... Nov. 21, 2014  The element of surprise has ... i.e., they strike without warning. Until now, epidemiologists had ... a viral outbreak, resulting in suboptimal responses to both ... Photo - http://photos.prnewswire.com/prnh/20141121/160242 ... been removed because virus gene structural changes have been ...
(Date:11/21/2014)... Quebec , November 21, 2014 ... como responsable comercial   Mariano Rodríguez es ...   KLOX está en marcha para comenzar ... de cura de heridas de reciente aprobación en Europa   ... "la compañía") se complace al anunciar los siguientes nombramientos: ...
(Date:11/21/2014)... (PRWEB) November 19, 2014 The science ... lives was shared with more than 200 primary students ... students from the University of Otago Physics Department and ... The Otago students, members of the university’s OSA/SPIE Student ... in early September, giving children from small, rural schools ...
(Date:11/21/2014)... 20, 2014 Author Matthew J. Pallamary’s ... the Other Side” published as a tribute to ... the “Fiction: Short Story” category of the 2014 ... and CEO of USA Book News, said this year’s ... publishers, including Simon & Schuster, Penguin, John Wiley & ...
Breaking Biology Technology:Viruses' Advantage of Surprise is Lost 2KLOX Technologies anuncia sus nombramientos ejecutivos 2KLOX Technologies anuncia sus nombramientos ejecutivos 3KLOX Technologies anuncia sus nombramientos ejecutivos 4KLOX Technologies anuncia sus nombramientos ejecutivos 5Optics and photonics outreach programs share science, spark fascination with light 2Optics and photonics outreach programs share science, spark fascination with light 3Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 2Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 3Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 4
... www.WhatWillYourPlanBe.com offers post college-aged women expert guidance in ... 17 Many young women enter the "real ... plan, particularly when it comes to their careers, ... that the unexpected often happens -- a looming ...
... Sales Grow by 10.7% to EUR1.06bn, - Adjusted Earnings per Share ... - Adjusted EBITDA Margin Rises From 19.0 to 19.5%, ... again considers itself well equipped to meet the global challenges in, ... of 6% to 7% in, the core business.", , ...
... test aids in identifying connection between improved lipid profile ... Using the VAP Cholesterol Test from ... found an association between a rare gene mutation and ... could help in the development of heart disease risk-lowering ...
Cached Biology Technology:Helping Young Women Succeed in Today's Unpredictable World 2Helping Young Women Succeed in Today's Unpredictable World 3Helping Young Women Succeed in Today's Unpredictable World 4Following a Record Year in 2008 Gerresheimer Again Sets its Sights on Substantial Growth in 2009 2Following a Record Year in 2008 Gerresheimer Again Sets its Sights on Substantial Growth in 2009 3Following a Record Year in 2008 Gerresheimer Again Sets its Sights on Substantial Growth in 2009 4VAP Cholesterol Test Helps In Search For New Heart Disease Drugs 2VAP Cholesterol Test Helps In Search For New Heart Disease Drugs 3VAP Cholesterol Test Helps In Search For New Heart Disease Drugs 4
...
Mouse polyclonal antibody to PRDM2 - PR domain containing 2, with ZNF domain...
Anti Human S14G-Humanin Polyclonal Antibody...
... interface for data capture, recording, manipulation, ... from paper to this powerful solution ... an integrated LIMS, notary service, customer ... functions allow LABTrack to achieve in ...
Biology Products: