Navigation Links
Explanation for glowing seas suggested
Date:10/19/2011

It has long been known that distinctive blue flashes--a type of bioluminescence--that are visible at night in some marine environments are caused by tiny, unicellular plankton known as dinoflagellates. However, a new study has, for the first time, detailed the potential mechanism for this bioluminesence.

The study, which was partially funded by the National Science Foundation, is reported by Susan Smith of Emory School of Medicine, Thomas DeCoursey of Rush University Medical Center and colleagues in the Oct. 17, 2011 issue of the Proceedings of the National Academy of Sciences (PNAS).

A key aspect of the potential mechanism for bioluminescence in dinoflagellates proposed in the PNAS study involves voltage-gated proton channels--channels in membranes that can be opened or closed by chemical or electrical events.

J. Woodland Hastings, a member of the Smith and DeCoursey research team and an author of the PNAS article, suggested the presence of voltage-gated proton channels in dinoflagellates almost forty years ago. But the Smith and Decoursey team only recently confirmed them by the identification and subsequent testing of dinoflagellate genes that are similar to genes for voltage-gated proton channels that had previously been identified in humans, mice and sea squirts.

According to the study, here is how the light-generating process in dinoflagellates may work: As dinoflagellates float, mechanical stimulation generated by the movement of surrounding water sends electrical impulses around an internal compartment within the organism, called a vacuole--which holds an abundance of protons. (See accompanying illustration.) These electrical impulses open so-called voltage-sensitive proton channels that connect the vacuole to tiny pockets dotting the vacuole membrane, known as scintillons.

Once opened, the voltage-sensitive proton channels may funnel protons from the vacuole into the scintillons. Protons entering
'/>"/>

Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Diversity of trees in Ecuadors Amazon rainforest defies simple explanation
2. New explanation for a puzzling biological divide along the Malay Peninsula
3. Toward an explanation for Crohns disease?
4. UF scientists discover new explanation for controversial old patient-care technique
5. A new biological explanation for sadness in early postpartum
6. Study offers first explanation of how cells rapidly repair and maintain structure
7. Study provides explanation for connection between low birth weight and obesity later in life
8. Glowing hands in the waiting room improves kids handwashing
9. Glowing beacons reveal hidden order in dynamical systems
10. Promising new treatment for Alzheimers suggested based on Hebrew University research
11. Natural S-Equol suggested as critical component in SE5-OH for reducing menopausal hot flushes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Explanation for glowing seas suggested
(Date:7/23/2015)... Research and Markets ( http://www.researchandmarkets.com/research/rzzp3v/global_outlook_of ) ... Outlook of the Biometrics Industry 2015 " ... global biometrics market is likely to witness significant ... to the uptake of multiple technologies available. The ... the growth of biometrics in existing applications as ...
(Date:7/20/2015)... DENVER , July 20, 2015  Acuity ... Mobility Report: The Convergence of Commerce and Privacy" ... billion mobile biometric apps will be downloaded to ... users. The mobile biometrics market is projected to ... app revenue during the seven-year forecast period.    ...
(Date:7/9/2015)... , July 07, 2015 ... the addition of the "Biometrics for Banking; ... 2015-2020" report to their offering. ... contributor to this growth and the forecast is ... in revenue for companies involved in delivering biometric ...
Breaking Biology News(10 mins):Global Outlook of the Biometrics Industry 2015 2Global Outlook of the Biometrics Industry 2015 3Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 3
... very fatty beans from which oil is refined into biodiesel in ... University of Southern Denmark along with researchers from Brazil have succeeded ... be possible to alter the bean,s structure in order to get ... however shows that this may not be an easy task. ...
... researchers has used next generation sequencing to identify ... pediatric speech disorder. The findings are published in ... Journal of Neurodevelopmental Disorders http://www.jneurodevdisorders.com/content/5/1/29 . ... rare, severe speech disorder that in some patients ...
... special issue of the International Journal of Global Warming ... loss and damage from the perspective of affected people in ... how climatic stressors affect communities, what measures households take to ... they are unable to adjust sufficiently. The guest-editors, Kees ...
Cached Biology News:Proteins in one of the world's main biodiesel plants have been mapped -- and it does not look good 2Loss and damage from climate change 2Loss and damage from climate change 3
(Date:7/24/2015)... Ryan & Maniskas, LLP that a ... Court for the Northern District of California ... the common stock of Avalanche Biotechnologies, Inc. ("Avalanche" or the ... June 15, 2015, inclusive (the "Class Period"). Avalanche ... Court for appointment as a lead plaintiff of the Class.  ...
(Date:7/24/2015)... 24, 2015 Equity Research Institute ... Inc. (NASDAQ: PDLI ), Arena Pharmaceuticals Inc. (NASDAQ: ... Northwest Biotherapeutics Inc. (NASDAQ: NWBO ), and Acorda ... on PDL BioPharma can be accessed at https://www.EquityResearchInstitute.com/reports?keyword=PDLI ... ended at 5,146.41, down 0.49%, the Dow Jones Industrial ...
(Date:7/24/2015)... , July 24, 2015 Orexigen Therapeutics, Inc. ... results for the second quarter 2015 on Thursday, August ... will provide a business update and discuss the financial ... 8:00 a.m. Eastern Time (5:00 a.m. Pacific Time). ... by calling (800) 447-0521 (domestic) or (847) 413-3238 (international), ...
(Date:7/24/2015)... , July 24, 2015 The ... to reach USD 27.8 billion by 2022, growing at ... according to a new study by Grand View Research, ... is expected to result in significant reduction in cost ... augment adoption and usage rates of next generation sequencing ...
Breaking Biology Technology:Ryan & Maniskas, LLP Announces Class Action Lawsuit Against Avalanche Biotechnologies, Inc. 2Ryan & Maniskas, LLP Announces Class Action Lawsuit Against Avalanche Biotechnologies, Inc. 3Biotechnology Stocks in Motion -- PDL BioPharma, Arena Pharma, StemCells, Northwest Biotherapeutics, and Acorda Therapeutics 2Biotechnology Stocks in Motion -- PDL BioPharma, Arena Pharma, StemCells, Northwest Biotherapeutics, and Acorda Therapeutics 3Biotechnology Stocks in Motion -- PDL BioPharma, Arena Pharma, StemCells, Northwest Biotherapeutics, and Acorda Therapeutics 4Biotechnology Stocks in Motion -- PDL BioPharma, Arena Pharma, StemCells, Northwest Biotherapeutics, and Acorda Therapeutics 5Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 2Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 3Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 4Next Generation Sequencing (NGS) Market To Reach $27.8 Billion By 2022: Grand View Research, Inc. 5
... of global climate change and population growth call for sweeping ... warns a group of prestigious scientists, including an expert in ... research team, led by Nina Federoff, science and technology adviser ... a "critical need to get beyond popular biases against the ...
... process that produces both n-type and p-type doping ... the promising material for future electronic devices. ... increase conductivity in graphene nanoribbons used for interconnects. ... to graphene and then exposing it to electron-beam ...
... , CINCINNATI , Feb. 11 Kendle ... quarter and full-year 2009 financial results after the market closes on ... call and simultaneous webcast on Thursday, Feb. 25 at ... , Conference Call Instructions , To participate in the ...
Cached Biology Technology:Dramatic changes in agriculture needed as world warms and grows, researchers say 2Single-step technique produces both p-type and n-type doping for future graphene devices 2Single-step technique produces both p-type and n-type doping for future graphene devices 3Kendle Announces Details Regarding Fourth Quarter and Full-Year 2009 Earnings Conference Call and Webcast 2Kendle Announces Details Regarding Fourth Quarter and Full-Year 2009 Earnings Conference Call and Webcast 3
Mouse monoclonal antibody raised against a partial recombinant QPCT. NCBI Entrez Gene ID = QPCT...
... time consuming and inaccurate comparison of the entire ... of the sample when compared to the wild ... as a sharp peak. Accuracy of the ... 99%, with sensitivity to greater than 5% of ...
... system, 220-240 V, is used for biolistic particle ... employs an adjustable helium pulse to sweep DNA-, ... inner wall of a small plastic cartridge directly ... for in situ, in vitro, in vivo, and ...
The Discovery Series PDQuest 2-D analysis software is used for imaging, analyzing, and databasing two-dimensional electrophoretic gels. The 10-user network license entitles ten users to access data f...
Biology Products: