Navigation Links
Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria
Date:5/4/2009

An international team of scientists has determined the structure of the chlorophyll molecules in green bacteria that are responsible for harvesting light energy. The team's results one day could be used to build artificial photosynthetic systems, such as those that convert solar energy to electrical energy. A research paper about the discovery will be published on 4 May 2009 in the Proceedings of the National Academy of Sciences.

The scientists found that the chlorophylls are highly efficient at harvesting light energy. "We found that the orientation of the chlorophyll molecules make green bacteria extremely efficient at harvesting light," said Donald Bryant, Ernest C. Pollard Professor of Biotechnology at Penn State and one of the team's leaders. According to Bryant, green bacteria are a group of organisms that generally live in extremely low-light environments, such as in light-deprived regions of hot springs and at depths of 100 meters in the Black Sea. The bacteria contain structures called chlorosomes, which contain up to 250,000 chlorophylls. "The ability to capture light energy and rapidly deliver it to where it needs to go is essential to these bacteria, some of which see only a few photons of light per chlorophyll per day."

Because they have been so difficult to study, the chlorosomes in green bacteria are the last class of light-harvesting complexes to be characterized structurally by scientists. Scientists typically characterize molecular structures using X-ray crystallography, a technique that determines the arrangement of atoms in a molecule and ultimately gives information that can be used to create a picture of the molecule; however, X-ray crystallography could not be used to characterize the chlorosomes in green bacteria because the technique only works for molecules that are uniform in size, shape, and structure. "Each chlorosome in a green bacterium has a unique organization," said Bryant. "They are like lit
'/>"/>

Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria
(Date:3/31/2015)... 2015 Materials in Society Lecture ... June 30 2015   Elsevier , a ... services and publishing home of Materials Today , announced ... Materials in Society  Lecture Series . ... th International Conference on Materials for Advanced Technologies (ICMAT) ...
(Date:3/31/2015)... 2015  The Myeloma Crowd Research Initiative (MCRI) ... ten proposals that will now be evaluated for ... scientifically validated funding initiative uncovering solutions for high-risk ... the MCRI included preliminary vetting by the Scientific ... number of innovative projects focusing on high-risk myeloma, ...
(Date:3/31/2015)... (PRWEB) March 31, 2015 Diasome Pharmaceuticals, ... licensor, SDG, Inc., that a United States patent has ... insulin therapy. , Entitled “Lipid Construct for ... composition of matter claims related to the use of ... for enabling injected insulin to more effectively reach the ...
(Date:3/30/2015)... Struggles (Nasdaq: HSII ), the premier provider of ... shaping worldwide, today  announced that John Mitchell ... Life Sciences practice. As Global Practice Managing Partner ... of more than 80 partners, principals and associates in the ... serving clients in the biopharmaceutical, medical technology and ...
Breaking Biology Technology:Elsevier Materials Science Council Introduces the Materials in Society Lecture Series at the International Conference on Materials for Advanced Technologies (ICMAT) 2Elsevier Materials Science Council Introduces the Materials in Society Lecture Series at the International Conference on Materials for Advanced Technologies (ICMAT) 3Myeloma Crowd Research Initiative Selects 10 High-Risk Multiple Myeloma Proposals For Further Review 2Diasome Pharmaceuticals, Inc. Announces Notice of Allowance from US PTO for Liver Targeting System for Insulin 2Heidrick & Struggles Strengthens Leadership of Healthcare - Life Sciences Practice 2
... a life sciences company pioneering development of solid-state ... demonstrating the first direct electronic re-sequencing and mapping ... Advances in Genome Biology and Technology (AGBT) meeting, ... and the Omics and Personalized Medicine Conference at ...
... ago today, a task force comprised of Indianapolis business, ... strategy for Indiana,s life sciences sector that would catapult ... research institutions into a 21st-century hub for biotechnology and ... driven the state into the national spotlight as a ...
... 2012 Gen-Probe Incorporated (NASDAQ: GPRO ... 2011.  Total revenues in the quarter grew 16%, to a ... (EPS) increased 18%, to a new high of $0.72. ... in the fourth quarter while clinical diagnostics revenues continued their ...
Cached Biology Technology:Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 2Nabsys to Present DNA Sequence Data from Solid-State Nanodetectors at the Annual Advances in Genome Biology and Technology (AGBT) Meeting and the EMBL Omics and Personalized Health Conference 3BioCrossroads Commemorates Decade of Collaboration, Success for Indiana Life Sciences Sector 2BioCrossroads Commemorates Decade of Collaboration, Success for Indiana Life Sciences Sector 3Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 2Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 3Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 4Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 5Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 6Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 7Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 8Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 9Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 10Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 11Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 12Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 13Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 14Gen-Probe Reports Financial Results for the Fourth Quarter of 2011 15
(Date:3/24/2015)... 2015   NexID Biometrics LLC, whose spoof-mitigation ... today announced the beginning of shipments of version 2.0 ... The company, based in Potsdam, N.Y. ... Expo, which began here today at the Walter E. ... of its SDK boosts the accuracy rate range to ...
(Date:3/23/2015)... 2015   HOYOS Labs , a leading global ... that the Company will demonstrate multiple biometrics-based technologies under ... at Connect:ID on March 23 through 25, 2015, in ... highlight the IEEE Biometric Open Protocol Standard; free biometrics-based ... access control system. BOPS was invented by HOYOS Labs ...
(Date:3/20/2015)... 20, 2015 Research and Markets ... the "India Sensors Market Forecast and Opportunities ... The sensor market is projected to grow at ... Consumer electronics, automotive, industrial and healthcare sectors are ... country. In addition, adoption of MEMS technology in ...
Breaking Biology News(10 mins):NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3
... a fungal infection which is one of the major causes of ... PLoS Pathogens , funded by the Wellcome Trust and the ... evolved and spread out of Africa and into Asia. ... fungi. One particular strain of the fungus known as ...
... April 1, 2011 Aware, Inc. (NASDAQ: AWRE ... telecommunications and biometrics industries, today announced that Edmund C. Reiter ... Executive Officer and director of the board of the company ... and Kevin T. Russell, General Counsel have been named co-CEOs ...
... Fla., April 6, 2011 Ceelox, Inc. (OTCBB: CELO) ... PC Edition which operates on computers running the Windows ... has redesigned their authentication approach to leverage the recent ... Biometric Framework (WBF) provides support for fingerprint biometric devices ...
Cached Biology News:Scientists track evolution and spread of deadly fungus, one of the world's major killers 2Aware, Inc. Announces Resignation of Chief Executive Officer 2Aware, Inc. Announces Resignation of Chief Executive Officer 3Ceelox Offers Beta Release of Ceelox ID 7 for Personal Computers 2
... scale kinase profiling, quantitative measurement of ... research built on the flexible and ... These microarrays are available as part ... - Peptide Microarray Service. ...
... Microarrays designed for immunological studies, ... on the flexible and powerful Paraflo ... are available as part of our ... Custom Probe Content Probe ...
... Molecular Imaging (MI) Software for use in ... and drug discovery applications. The Regulatory Edition ... Drug Administrations Code of Federal Regulations Title ... [21 CFR Part 11]. KODAK MI Software, ...
... Arrays are intended for laboratory research use ... in neutral buffered formalin and embedded in ... performed by certified pathologists. Tissue cores ... relocated into a new recipient paraffin block, ...
Biology Products: