Navigation Links
Researchers visualize complex pigment mixtures in living cells
Date:3/4/2008

TEMPE, Ariz. In a technical advance that could allow researchers to watch cells as they act during the process of photosynthesis, scientists have developed a method that extends the power of fluorescence-mediated bio-imaging to see discrete pigments inside live cells of bacteria.

The method is providing fresh insights into what happens on a molecular level during photosynthesis. It also promises to provide important information about the inner workings of cells as they engage in the photosynthesis process of collecting sunlight and turning it into chemical energy. Such information could be valuable in helping researchers fine tune the bacteria for specific purposes, said Wim Vermaas, a professor in ASUs School of Life Sciences and lead author of the report, In vivo hyperspectral confocal fluorescence imaging to determine pigment localization and distribution in cyanobacterial cells. The report was published in this weeks online Early Edition of the Proceedings of the National Academy of Sciences. The ASU researchers worked with scientists from Sandia National Laboratories, Albuquerque, on the new method.

This is a new tool in our tool box, and a very good one at that, said Vermaas.

The method is based on fluorescence imaging to discern the different pigments of bacteria that are engaged in photosynthesis. Fluorescence is a property where some compounds emit a characteristic glow when excited by specific wavelengths of light. Up until now, current fluorescent methods have had a hard time discerning compounds with similar pigments and fluorescence characteristics, hampering the ability of researchers to know exactly what is going on inside a cell.

Confocal fluorescence microscopy has proven to be an excellent method to localize pigments in cells as long as there is little spectral overlap between different fluorescing pigments. The new method, hyperspectral fluorescence imaging, greatly pushes the boundaries of this techn
'/>"/>

Contact: Skip Derra
skip.derra@asu.edu
480-965-4823
Arizona State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... geologist Juliane Mller the Fram Strait is a key region ... this passage between Greenland and Svalbard warm Atlantic water flows ... west side cold Arctic water masses and sea ice push ... A considerable portion of the Atlantic water cools here on ... The circulation of the water caused in this manner drives ...
(Date:8/21/2014)... standards process, will be available soon and will improve ... in the OnlineFirst version of Nutrition in Clinical ... the American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.), ... misconnection that can be harmful and even fatal to ... medical devices, components, and accessories to deliver fluids or ...
(Date:8/21/2014)... involves the pancreas digesting itself resulting in severe abdominal ... UK around 20,000 patients are diagnosed with the disease ... and treatment is restricted to intravenous fluid and nutritional ... of Life Sciences, who led the research, said "The ... gall stones and excessive alcohol intake combined with a ...
Breaking Biology News(10 mins):Arctic sea ice influenced force of the Gulf Stream 2Arctic sea ice influenced force of the Gulf Stream 3New feeding tube connectors will improve patient safety 2Insulin offers new hope for the treatment of acute pancreatitis 2
... you get a picky young eater who refuses everything to ... try nutritious foods when all they want is something sweet ... mealtime struggles? In her new book, ... to Raise Healthy Eaters" (Healthy Learning, May 2012), registered dietitian ...
... (May 29, 2012) Physicians and researchers at John Theurer ... cancer centers, will present the latest findings in blood-cancer research ... meeting in Chicago on June 1-5. Their involvement in these ... to bolster its research program. "We are ...
... Organic Electronics research group at Linkping University previously developed ... ions, as well as biomolecules. Tybrandt has now succeeded ... a similar way to traditional silicon-based electronics. ... carrier consists of chemical substances with various functions. This ...
Cached Biology News:'Eat your vegetables!' New book redefines how to raise healthy eaters 2John Theurer Cancer Center presents significant blood cancer research at 2012 ASCO Annual Meeting 2
(Date:8/21/2014)... MO (PRWEB) August 21, 2014 ... service biopharmaceutical contract development and manufacturing organization (CMO) ... Progenics Pharmaceuticals, Inc., an oncology company focused on ... treating cancer, to manufacture the anti-prostate specific membrane ... ADC product candidate. Under the agreement the ...
(Date:8/20/2014)... history lessons often have it that American Indians largely ... chicken pox, influenza and tuberculosis brought to the New ... vary, about 20 million people lived in the Americas ... them were killed by European diseases., But new research ... University and Johannes Krause of the University of Tubingen ...
(Date:8/20/2014)... -- PAREXEL International Corporation (NASDAQ: PRXL ) announced ... Healthcare Conference in New York.  Ingo Bank , ... making a presentation on PAREXEL and discussing business developments ... A live webcast of the discussion will ... at www.PAREXEL.com in the Upcoming Events portion ...
(Date:8/20/2014)... NJ (PRWEB) August 20, 2014 WriteResult®, ... announced today that it has expanded its myPROpad™ ePRO ... the EQ-5D-5L, one of the most widely used ... measuring general health status. The EQ-5D is used during ... generate a measure that can be used to demonstrate ...
Breaking Biology Technology:Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 2Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 3Unusual discovery leads to fascinating tuberculosis theory 2Unusual discovery leads to fascinating tuberculosis theory 3PAREXEL International To Present At Baird Healthcare Conference 2EQ-5D™ Assessment Now Available for iPad 2
... Thomson Reuters, the,world,s leading source of intelligent ... the National Cancer Institute (NCI) has,joined the ... comprehensive resource for biomarker intelligence to provide,pharmaceutical, ... for assessing and tracking a potential biomarker ...
... ... Initiatives, BEDFORD, Mass., Sept. 3 ... technology with its OmniPod(R),Insulin Management System, today announced the appointment of ... this,role, Mr. Arthur will lead the company,s business development strategy,including pursuing ...
... a Magellan,Biosciences company and leader in novel HPLC ... QA/QC, life science, and,analytical-chemistry customers worldwide, announced that ... American Technology Innovation Award in the,field of integrated ... to ESA,s Vice President of HPLC Products and ...
Cached Biology Technology:The National Cancer Institute Joins the Global Community of Scientists Now Using BIOMARKERcenter From Thomson Reuters 2The National Cancer Institute Joins the Global Community of Scientists Now Using BIOMARKERcenter From Thomson Reuters 3Insulet Appoints Bill Arthur as Vice President of Business Development 2Insulet Appoints Bill Arthur as Vice President of Business Development 3Insulet Appoints Bill Arthur as Vice President of Business Development 4ESA Receives 2008 Frost & Sullivan North American Technology Innovation Award for Development of Integrated Metabolomics Systems 2ESA Receives 2008 Frost & Sullivan North American Technology Innovation Award for Development of Integrated Metabolomics Systems 3
... The "egg crate" style strip holder is ... bottom strips. Linkage: This CLS number is ... match Cornings product number. If showing no ... Sigma-Aldrich number (Z71,456-9) or contact customer service ...
... Streptavidin-AP Systems provide rapid, precise localization ... in frozen or paraffin-embedded tissue, cytospins ... also facilitate double or triple labeleing ... simultaneously with primary antibodies of different ...
Designed for use with all 96-well SPRI reagent kits. Used with round bottom 96-well microplates, and 96-well thermal cycling plates....
... pre-amplifier suitable for a broad range of ... recording physiological signal such as ECG, EMG, ... for use with a wide range of ... a stimulus artefact clamp to avoid saturation ...
Biology Products: