Navigation Links
Some like it hot: Worms at deep-sea vents favor a fiery 45-55°C

Scientists have found that worms dwelling at deep-sea hydrothermal vents opt for temperatures of 45-55 degrees Celsius (113-131 degrees Fahrenheit) when given a choice of conditions, giving them the highest thermal preference of any animal studied to date. This unique preference for extreme temperatures may be the undersea worms' meal ticket, since they are apparently the only animals able to access -- and feast on -- lush mats of bacteria that thrive around deep-sea vents.

The research is described this week in the journal Science.

Authors Peter R. Girguis of Harvard University and Raymond W. Lee of Washington State University studied Paralvinella sulfincola, a member of the Alvinellidae family of worms dwelling at ocean depths of some 2,200 meters off the Pacific coast of Washington. When the researchers placed them within a special high-pressure seawater aquarium with a sharp temperature gradient, these worms chose to remain at roughly 50 degrees Celsius for the duration of a seven-hour experiment.

"This is far longer than animals have survived other thermo-tolerance studies, where scientists exposed individuals to high temperatures for 15 to 30 minutes, as long as it took for half of them to die," says Girguis, assistant professor of organismic and evolutionary biology in Harvard's Faculty of Arts and Sciences. "Unlike many animals found in hot habitats, which merely tolerate extreme temperatures, these worms actually prefer temperatures around 50 degrees Celsius."

Girguis likens the worms' deep-sea habitat to a pot of scalding water heating inside a freezer. At extreme undersea pressures, water will not boil, so deep-sea thermal vents jet out water that remains liquid at temperatures of up to 350 degrees Celsius (662 degrees Fahrenheit). Because the surrounding seawater is barely above freezing, a steep and variable temperature gradient exists around the thermal vents, making it difficult to measure precisely the deep-sea tempera
'"/>

Source:Harvard University


Page: 1 2

Related biology news :

1. Research on Worms Yields Clues on Aging
2. Stealth Worms May Improve Insect Pest Control
3. Worms know bad food when they smell it
4. Worms produce surprise insight into human fever
5. Climatologists discover deep-sea secret
6. Sinkers provide missing piece in deep-sea puzzle
7. Drug discovery team to explore newly discovered deep-sea reefs
8. Giant deep-sea tubeworms meal ticket comes in as a skin infection
9. Extraordinary life found around deep-sea gas seeps
10. Ocean seep mollusks may share evolutionary history with other deep-sea creatures
11. Long-lived deep-sea fishes imperiled by technology, overfishing
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Some like hot Worms deep sea vents favor fiery

(Date:7/11/2014)... There is evidence that under the normal ... and development, maintain neuronal environment, and exhibit ... and neurodegenerative disease. Previous studies have found ... cells after chemical induction have reduced viability, ... application. Prof. Xiaodong Yuan, Kailuan General Hospital, ...
(Date:7/11/2014)... that let nerve cells send out electrical signals, Johns ... tactic that may offer a new way to protect ... responsible way. , Their findingthat naturally occurring insect ... for a closely related onesuggests that insecticides can be ... like bees. A summary of the research, led by ...
(Date:7/10/2014)... 27, 2014  The American Academy of Forensic ... Standards and Technology (NIST) and the Department of ... and forensic science expert members to the Forensic ... element of the NIST,s Organization of Scientific Area ... first appointments made to the new FSSB that ...
Breaking Biology News(10 mins):Potent spider toxin 'electrocutes' German, not American, cockroaches 2Potent spider toxin 'electrocutes' German, not American, cockroaches 3Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3
... we,ve been told, eliminating or severely limiting fats from ... in patients suffering from heart failure, a study at ... Results from biological model studies conducted by assistant professor ... researchers, demonstrate that a high-fat diet improved overall mechanical ...
... WASHINGTON The Chesapeake Bay Program is a ... jurisdictions in the bay watershed to oversee the restoration ... the extent of pollutants -- such as nitrogen, phosphorus, ... from the National Research Council assesses the framework used ...
... a researcher at the Royal Swedish Academy of Sciences, Margareta ... permafrost. "The changes we see are dramatic. And ... from the norm when compared with a longer term perspective", ... of the globe that is warming up fastest today. Measurements ...
Cached Biology News:Damaged hearts pump better when fueled with fats 2Chesapeake Bay program's 2-year milestones improve upon past strategies, but accounting of progress remains a challenge 2A new research report shows effects of climate change in the Arctic are more extensive than expected 2A new research report shows effects of climate change in the Arctic are more extensive than expected 3
(Date:7/10/2014)... 2014 Product and process impurities ... abundance and are often “lost in the noise,” ... Join presenters Dr. Rowel Tobias, Senior Scientist, Protein ... Head of Quality at Nanotherapeutics, Inc., to lear ... speed detection and quantitation while achieving the required ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Terascala, the ... announced that Alan Swahn, a former vice president of ... team as vice president of marketing. Terascala’s software when ... and NetApp create the highest performance and most reliable ... appointed to guide Terascala’s channel expansion and broaden its ...
(Date:7/10/2014)... OMICS Group’s 5th International conference and exhibition ... at Double Tree by Hilton Beijing, China is all ... & Bioanalytical research methods only to facilitate improved living ... Dr. Srinubabu Gedela, MD of OMICS Group Inc has ... one in bringing a unique and international mix of ...
(Date:7/10/2014)... , July 10, 2014  Franciscan ... use of capnography for respiratory monitoring outside ... of healthcare leaders in embracing state-of-the-art patient ... effectively patients are breathing and can alert ... By measuring the amount of carbon dioxide ...
Breaking Biology Technology:Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Terascala Expands Executive Team 2Terascala Expands Executive Team 3A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2
... has succeeded in significantly increasing the sensitivity of the ... on this topic at Delft University of Technology on ... and astronomers from around the world are currently working ... of 66 advanced telescopes which will be placed at ...
... Iceland, February 3 deCODE genetics,(Nasdaq: DCGN ) ... letter from,the Nasdaq Listing Qualifications Panel (the "Panel") stating ... stock from the Nasdaq Global,Market to the Nasdaq Capital ... Wednesday, February 4, 2009. The Nasdaq Capital Market, which ...
... DHA (docosahexaenoic acid) omega-3 innovator and maker of the ... today that it has entered into a license agreement ... is a process widely used in food manufacturing that ... the nutritional value, shelf-life and flavor of the finished ...
Cached Biology Technology:Nanotechnology makes supertelescopes much more sensitive 2deCODE Announces Transfer of the Listing of its Common Stock from Nasdaq Global Market to Nasdaq Capital Market 2deCODE Announces Transfer of the Listing of its Common Stock from Nasdaq Global Market to Nasdaq Capital Market 3Martek, General Mills Collaborate on Microencapsulation Technology for Food Applications 2Martek, General Mills Collaborate on Microencapsulation Technology for Food Applications 3
Features , Designed to assist users in applying domed caps to tube strips and plates , Minimises the pressure required to seal the caps effectively , Enables multiple tubes to be sealed simultaneousl...
Lysozyme C (W-20)...
... ventilated and BR4i refrigerated multifunction centrifuges are equally ... at a low sound level with a large ... Their AUTO-LOCK rotor exchange system without tools ensures ... within seconds. Instant rotor exchange (5 ...
... X-Gal (5-bromo-4-chloro-3-indoyl-beta-D-galactopyranoside) is a ... identify recombinant plasmids. In ... and IPTG, lac ... blue, whereas recombinant colonies ...
Biology Products: