Navigation Links
IU-led team uncovers process for chameleon-like changes in world's most abundant phytoplankton
Date:11/26/2012

An international team of biologists led by Indiana University's David M. Kehoe has identified both the enzyme and molecular mechanism critical for controlling a chameleon-like process that allows one of the world's most abundant ocean phytoplankton, once known as blue-green algae, to maximize light harvesting for photosynthesis.

Responsible for contributing about 20 percent of the total oxygen production on the planet, the cyanobacteria Synechococcus uses its own unique form of a sophisticated response called chromatic acclimation to fine tune the absorption properties of its photosynthetic antenna complexes to the predominant ambient light color. The researchers identified and characterized an enzyme, MpeZ, that plays a pivotal role in the mechanism that allows two different water-soluble proteins in Synechococcus -- phycoerythrin I and II -- to alter their pigmentation in order to maximize photon capture for photosynthesis.

Scientists want to understand how cyanobacteria optimize their photosynthetic activities in different light conditions to gain a better appreciation of how human activities affect the phytoplankton's ability to produce oxygen and uptake the greenhouse gas carbon dioxide, which they consume in order to grow. Science and industry also use the pigment-protein complex phycoerythrin for fluorescent imaging and as fluorescent markers in biotechnology and health care applications.

"We now have the ability to attach a novel chromophore, part of a molecule responsible for its color, to phycoerythrin, which provides a new chromophore-protein combination that absorbs and fluoresces at a wavelength that is not currently commercially available," said Kehoe, a professor in the IU Bloomington College of Arts and Sciences' Department of Biology. "Our results suggest that this new chromoprotein is brighter and more stable than most on the market today."

Kehoe also noted IU has begun the process of filing a pa
'/>"/>

Contact: Steve Chaplin
stjchap@iu.edu
812-856-1896
Indiana University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Rising carbon dioxide in atmosphere also speeds carbon loss from forest soils, IU-led research finds
2. UCI-led study uncovers how Salmonella avoids the bodys immune response
3. International team uncovers new genes that shape brain size, intelligence
4. Screening technique uncovers 5 new plant activator compounds
5. Study shows unified process of evolution in bacteria and sexual eukaryotes
6. KIT: Processes at the surface of catalysts
7. Antioxidant may disrupt Alzheimers disease process
8. Study resolves debate on human cell shut-down process
9. ORNL process improves catalytic rate of enzymes by 3,000 percent
10. Thomson Reuters Launches Life Sciences Partner Ecosystem to Drive Collaborative R&D Drug Processes
11. Scientists discover enzyme that could slow part of the aging process in astronauts -- and the elderly
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
IU-led team uncovers process for chameleon-like changes in world's most abundant phytoplankton
(Date:7/28/2014)... of two additional coral communities showing signs of damage from ... the 2010 spill in the Gulf of Mexico. The discovery ... of biology at Penn State University. A paper describing this ... the Gulf of Mexico will be published during the last ... the journal Proceedings of the National Academy of Sciences ...
(Date:7/28/2014)... Millions of people in the United States have a ... It can be painful and may even require surgery ... skeletal muscle wasting and, in turn, limb amputation. , ... Houston (UTHealth) Medical School, scientists tested a non-surgical preventative ... it was associated with increased blood circulation. Their ...
(Date:7/28/2014)... Yale School of Medicine have pinpointed a mechanism in part ... in the blood, linking it to both type 1 and ... 28 issue of Proceedings of the National Academies of ... enzyme located in a part of the hypothalamus known ... in motion that control glucose levels in the blood," said ...
Breaking Biology News(10 mins):Impact of Deepwater Horizon oil spill on coral is deeper and broader than predicted 2Scientists discover genetic switch that can prevent peripheral vascular disease in mice 2Glucose 'control switch' in the brain key to both types of diabetes 2
... rules of school are simple: it is all about watching ... what they do. Researchers at the mathematics department at Uppsala ... fish apply similar rules when traveling in small shoals. ... are seen in the collective motion of fish schools and ...
... CYBERSECURITY -- Foiling exfiltration . . . Computer ... being developed by a team led by Justin Beaver of ... months, attackers who breach a system,s defense have a distinct ... a window into potentially sensitive data and their true identity ...
... HOUSTON, Nov. 8, 2011 Thanks to almost $1 million ... of Texas (CPRIT), the University of Houston (UH) will soon ... grant will be applied toward the purchase and installation of ... and cancer progression. With access to the latest in imaging ...
Cached Biology News:Fish follow the rules to school 2Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 2Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 3Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 4UH receives $990K grant to enhance cancer research facilities 2
(Date:7/28/2014)... (PRWEB) July 28, 2014 The National ... in Muncie IN, is pleased to announce that it ... National Museum of the United States Air Force. , ... year-long process that concluded this spring with an on-site ... Dayton, OH museum. , The National Museum of ...
(Date:7/25/2014)... July 26, 2014 "Ischemic Stroke ... 2014" provides data on the Ischemic Stroke and ... elemental information and data relating to the clinical ... View full global Ischemic Stroke Research Report 2014 ... overview of the trial numbers and their recruitment ...
(Date:7/25/2014)... live in each person,s digestive tract. Scientists believe that ... off harmful infections, but their role in human health ... on the role of these bacteria, a team of ... tracked fluctuations in the bacterial populations of two research ... the July 25 issue of the journal Genome ...
(Date:7/25/2014)... , July 25, 2014 ... the "Global Metabolomics Market 2014-2018" report ... http://photos.prnewswire.com/prnh/20130307/600769 Metabolomics or Metabonomics is ... Metabolomics has become a new experimental technique that ... the environmental sciences. Metabolites are small molecules that ...
Breaking Biology Technology:AMA’s National Model Aviation Museum Granted Full Civilian Museum Certification by the National Museum of the United States Air Force 2Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 2Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 3Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Global Metabolomics Market 2014-2018: Key Vendors are Agilent, Bio-Rad, Bruker, Human Metabolome and Metabolon 2
... Abstracts Accepted for Presentation at ASCO, SOUTH SAN FRANCISCO, ... hold an investor and analyst briefing in,conjunction with the 44th ... 6:00 p.m. to 8:00 p.m. CT on Monday, June 2,2008., ... and Chief Executive Officer -- Michael M. Morrissey, PhD, ...
... the launch of a new collaborative website initially focusing ... The WikiProfessional technology underlying the site has been developed ... Centrals open access journal Genome Biology, WikiProteins provides a ... , The article is written by Barend Mons of ...
... miniaturization, carbon nanotubes which are about 100,000 times ... and very useful properties have become the choice ... and mechanical devices. But it is precisely their infinitesimal ... that make it difficult for scientists to manipulate nanotubes. ...
Cached Biology Technology:REMINDER: Exelixis Will Webcast Its June 2 Investor and Analyst Briefing at ASCO 2REMINDER: Exelixis Will Webcast Its June 2 Investor and Analyst Briefing at ASCO 3REMINDER: Exelixis Will Webcast Its June 2 Investor and Analyst Briefing at ASCO 4Large-scale community protein annotation -- WikiProteins 2Weizmann Institute scientists create new nanotube structures 2
Rat Antibody to Mouse TCR VB8.1,8.2:FITC Recognises the V beta 8.1 and V beta 8.2 determinants of the murine T cell receptor. Specificity: mouse TCR VB8.1 and 8.2...
fli-1...
Vesicle Associated Membrane Protein (VAMP 1/2)...
Anti-Mouse Valpha 2 TCR, Purified (Clone B20.1) (rat IgG2a)...
Biology Products: