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:8/21/2014)... previously unknown process for harvesting energy and producing oxygen ... State University scientist has discovered. The discovery lays the ... harvesting energy from the Sun, and understanding dense blooms ... lakes worldwide. A paper describing the discovery will be ... the journal Science on 21 August 2014. ...
(Date:8/21/2014)... A ubiquitous skin fungus linked to dandruff, eczema and ... tracked to even further global reachesincluding Hawaiian coral reefs ... sea vents. , A review in the scientific journal ... distribution of the fungi of the genus Malassezia ... environmental sequencing datasets from around the world. , University ...
(Date:8/21/2014)... intake, health and quality of life of older adults ... the University of Waterloo receiving close to $1.5 million ... (CIHR). , Professor Heather Keller, of the Faculty ... research chair in nutrition and aging, will receive $979,000 ... in long-term care homes are poorly nourished. The project ...
Breaking Biology News(10 mins):Hot-spring bacteria reveal ability to use far-red light for photosynthesis 2Hot-spring bacteria reveal ability to use far-red light for photosynthesis 3From dandruff to deep sea vents, an ecologically hyper-diverse fungus 2Grants will fund landmark aging research at Waterloo 2
... will take place on the campus of the Abdus ... the Academy,s secretariat. TWAS,s new executive director, Romain Murenzi, ... of TWAS; Fernando Quevedo, director of ICTP; Immacolata Pannone, ... TWAS President, will highlight the opening ceremony. The morning ...
... 15, 2011   DigitalPersona, Inc. ... protection solutions, today announced at the CARTES & ... company has open sourced its new MINEX-certified FingerJetFX™ ... (OSE), is free, portable software that device manufacturers ...
... FRANCISCO, CANovember 15, 2011The American Heart Association will ... Emeritus Robert Mahley, MD, PhD, with the 2011 ... on one of Gladstone,s founding cardiovascular scientists. ... that the American Heart Association can give a ...
Cached Biology News:TWAS 22nd General Meeting in Trieste 2DigitalPersona Open Sources New FingerJetFX Biometrics Technology for Mobile Devices, PCs and Servers 2DigitalPersona Open Sources New FingerJetFX Biometrics Technology for Mobile Devices, PCs and Servers 3Gladstone founder receives American Heart Association Distinguished Scientist Award 2
(Date:8/22/2014)... are intensively investigated for application as catalysts, ... and components in photonics and molecular electronics. ... for understanding physical and chemical properties, has ... USA, have demonstrated that high-resolution electron microscopy ... structure in which all gold atoms are ...
(Date:8/22/2014)... The AMA is pleased to share with the ... Alaska Governor Sean Parnell has signed House Bill 255 ... of Unmanned Aircraft Systems and the continuation of the ... it is, “An Act relating to unmanned aircraft systems; ... system.” It defines State of Alaska laws regarding data ...
(Date:8/21/2014)... 21, 2014 DNA vaccine pioneer ... its development of JRC-LAMP-vax, an innovative and safe potential ... IC studies began this month in Hawaii, moving the ... , The Japanese red cedar releases pollen that causes ... Mountain Cedar pollen wreaks similar havoc in Colorado, New ...
(Date:8/21/2014)... 2014 His Majesty Willem-Alexander, King of ... Court of His Majesty Willem-Alexander, King of the Netherlands, ... Opening of POET-DSM Advanced Biofuels’ Project LIBERTY cellulosic ethanol ... The King will take part in the Grand Opening ... 11 a.m.-12:20 p.m. and tour the plant. POET-DSM is ...
Breaking Biology Technology:A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy 2State of Alaska Signs Unmanned Aircraft Systems Bill 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 3Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 4His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3
... communications system. Image courtesy of GE Healthcare. Wisconsin ... include $10 million for a grant and loan program ... systems. , ,"I am committed to ensuring that all ... why I am pleased to unveil a proposal of ...
... and Minnesota students will get a one-of-a-kind experience today ... the International Space Station Expedition 10 crew. , ,The ... EST today at Crossroads Elementary School, St. Paul, Minn. ... Leroy Chiao and Flight Engineer Salizhan Sharipov. Nearly 700 ...
... human embryos. , ,This weeks announcement out of Kings ... the sheep, has been granted a license by the British ... hopes among disease sufferers, scientists and advocacy groups for a ... (ALS). , ,These diseases could be addressed through research on ...
Cached Biology Technology:Doyle proposes $10M to expand use of electronic medical records 2Doyle proposes $10M to expand use of electronic medical records 3Human cloning plans get blessing from British government 2Human cloning plans get blessing from British government 3
Hybridization cassette for one slide...
Request Info...
Contains 0.2 g/L EDTA4Na in phosphate-buffered saline....
Quantibody Human Angiogenesis Array 1 (1 slide) Class: Quantitative Antibody Arrays Product Group: Antibody Array...
Biology Products: