Navigation Links
Bacterium sequenced makes rare form of chlorophyll
Date:2/4/2008

Researchers at Washington University in St. Louis and Arizona State University have sequenced the genome of a rare bacterium that harvests light energy by making an even rarer form of chlorophyll, chlorophyll d. Chlorophyll d absorbs red edge, near infrared, long wave length light, invisible to the naked eye.

In so doing, the cyanobacterium Acaryochloris marina, competes with virtually no other plant or bacterium in the world for sunlight. As a result, its genome is massive for a cyanobacterium, comprising 8.3 million base pairs, and sophisticated. The genome is among the very largest of 55 cyanobacterial strains in the world sequenced thus far, and it is the first chlorophyll d containing organism to be sequenced .

Robert Blankenship. Ph.D., Lucille P. Markey Distinguished Professor in Arts & Sciences at Washington University, and principal investigator of the project, said with every gene of Acaryochloris marina now sequenced and annotated, the immediate goal is to find the enzyme that causes a chemical structure change in chlorophyll d, making it different from primarily chlorophyll a, and b, but also from about nine other forms of chlorophyll.

The synthesis of chlorophyll by an organism is complex, involving 17 different steps in all, Blankenship said. Some place near the end of this process an enzyme transforms a vinyl group to a formyl group to make chlorophyll d. This transformation of chemical forms is not known in any other chlorophyll molecules.

Blankenship said he and his collaborators have some candidate genes they will test. They hope to insert these genes into an organism that makes just chlorophyll a. If the organism learns to synthesize chlorophyll d with one of the genes, the mystery of chlorophyll d synthesis will be solved, and then the excitement will begin.

Blankenship and his colleagues from both institutions published a paper on their work in the Fe
'/>"/>

Contact: Robert Blankenship
blankenship@wustl.edu
314-935-7971
Washington University in St. Louis
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New drug makes weight loss safer
2. How mother of thousands makes plantlets
3. For honey bee queens, multiple mating makes a difference
4. Scientists spy enzyme that makes us unique
5. Thinking makes it so: Science extends reach of prosthetic arms
6. Choosing dry or wet food for cats makes little difference
7. Technique controls nanoparticle size, makes large numbers
8. Decoy makes sitting duck of superbugs
9. Case researcher in RNA biology makes waves by challenging current thinking
10. New process makes nanofibers in complex shapes and unlimited lengths
11. Diabetes makes it hard for blood vessels to relax
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Mineral Research awarded Michael F. Holick, PhD, MD, of ... Louis V. Avioli Award. Holick, a professor of medicine, ... revolutionizing the understanding of vitamin D and its role ... member of the American Society for Bone and Mineral ... basic research. It is named for ASBMR,s first president ...
(Date:7/11/2014)... Cell scientists have set a "mouse TRAP" to capture ... a recent study published in the Journal of ... a technique called TRAP to extract cellular and genetic ... by scientists at the Rockefeller Institute for Medical Research ... the protein-making machinery, or ribosomes, of the cell type ...
(Date:7/11/2014)... Researchers from Salk Institute for Biological Studies, BGI, ... the safety and reliability of the existing targeted ... method, TALEN-HDAdV, which could significantly increased gene-correction efficiency ... study published online in Cell Stell Cell ... cell-based gene therapy. , The combination of stem ...
Breaking Biology News(10 mins):BUSM's Michael F. Holick receives American Society for Bone and Mineral Research award 2A new genome editing method brings the possibility of gene therapies closer to reality 2
... (September 25, 2007) Stem cell therapy for cardiac ... media will be the focus of the keynote addresses ... Treatment of Cardiovascular Disease conference. Conducted by Cedars-Sinai Medical ... and 5, the conference is co-sponsored by the California ...
... For several months last spring, the Vanderbilt greenhouse held ... than are known to exist in the wild., This ... by Jennifer Ellis, a doctoral student in the biological ... E. McCauley., The species is called the giant whorled ...
... Cryptochromes, which fulfill the molecular requirements for sensing the ... neurons of migratory birds (Mouritsen et al., PNAS, 2004). ... brain are active when the birds use their magnetic ... and a forebrain region (Cluster N; Mouritsen et al., ...
Cached Biology News:Cardiologists and heart surgeons meet for 'Controversies and Advances' conference 2Cardiologists and heart surgeons meet for 'Controversies and Advances' conference 3Student study bolsters case for adding a rare sunflower to the endangered species list 2
(Date:7/10/2014)... journal PNAS (Proceedings of the National Academy of ... sleep deprivation have a significant effect on our metabolism. ... best time of day to test for diseases such ... effectively. , Researchers from the University of Surrey and ... between sleep deprivation, body clock disruption and metabolism, and ...
(Date:7/10/2014)... our laptops and electric vehicles could store more energy ... help of a sponge-like silicon material. , Researchers ... used in one of the battery,s electrodes, as silicon ... of graphite. A paper describing the material,s performance as ... Nature Communications . , "Silicon has long been sought ...
(Date:7/10/2014)... the University of Illinois at Urbana-Champaign provides new ... of spin and heat at the nanoscale, and ... for data storage and information processing. , ... momentum. In a typical charge current, electrons, spin-angular-momentum ... explained David Cahill, a professor of materials science ...
(Date:1/15/2014)... , "The interface is the device," Nobel laureate ... properties to be found at the junctures where ... world of nanotechnology, the interfaces between layers of ... in such high-tech favorites as spintronics, high-temperature superconductors, ...
Breaking Biology Technology:Time of day crucial to accurately test for diseases, new research finds 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3University of Illinois study advances limits for ultrafast nano-devices 2A deeper look at interfaces 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 ...
... Madison, Wis. - While human stem cells offer potential ... the more immediate benefit from research into such cells will ... an area that for many years has been steeped in ... research since disease works within the context of cells. , ...
... - Healthcare professionals will have the opportunity hear about ... profession at the Wisconsin Dairyland HIMSS Fall Technology Conference ... the Radisson hotel in La Crosse, will be split into ... events such as a golf outing and a riverboat cruise, ...
Cached Biology Technology:Human stem cells called great opportunity for drug discovery 2Human stem cells called great opportunity for drug discovery 3Conference will review healthcare IT 2
... is a major step forward in ... handling system - with one universal ... modules. All five single channel and ... one handle. The lightweight handle is ...
alpha-N-Catenin Antibody Shipping Temperature: HOT Storage Temperature: -20C...
... EC3 Darkroom is designed for imaging of ... EC3 systems offer direct control for users ... settings by hand , A range of ... system for all fluorescent and chemiluminescent applications ...
... is designed for multiple user laboratories for ... TLC applications. The MultiDoc-It is available without ... provides a darkroom environment and protects the ... image capture and enhancement , The ...
Biology Products: