Navigation Links
Thermal limit for animal life redefined by first lab study of deep-sea vent worms
Date:5/29/2013

Forty-two may or may not be the answer to everything, but it likely defines the temperature limit where animal life thrives, according to the first laboratory study of heat-loving Pompeii worms from deep-sea vents, published May 29 in the open access journal PLOS ONE by Bruce Shillito and colleagues from the University Pierre and Marie Curie, France.

The worms, named Alvinella pompejana, colonize black smoker chimney walls at deep-sea vents, thrive at extremes of temperature and pressure, and have thus far eluded scientists' attempts to bring them to the surface alive for further research. Many previous studies conducted at these sites has suggested the worms may be able to thrive at temperatures of 60 C (140 F) or higher. As Shillito explains, "It is because several previous papers had come to this conclusion that Alvinella had become some sort of thermal exception in the scientific world. Before these studies, it was long agreed that 50 C was the limit at which animal life survived."

In this new study, researchers used a technique that maintains the extreme pressure essential to the worms' survival during their extraction, allowing them to bring Pompeii worms to their labs for testing. They found that prolonged exposure to the 50-55 C range induced lethal tissue damage, revealing that the worms did not experience long-term exposures to temperatures above 50 C in their natural environment. However, their studies found that the temperature optimum for survival of the worms was still well over 42 C, ranking them among the most heat-loving animals known.


'/>"/>

Contact: Souri Somphanith
onepress@plos.org
415-568-4546
Public Library of Science
Source:Eurekalert

Page: 1

Related biology news :

1. Hot meets cold at new deep-sea ecosystem: Hydrothermal seep
2. Polycrystalline diamond drill bits open up options for geothermal energy
3. SMU conference aims to spur development of geothermal production in oil and gas fields
4. Gene therapy for hearing loss: Potential and limitations
5. Ducks Unlimited Canada and Canadian Light Source partnership to shed light on wetlands
6. Scientists define new limits of microbial life in undersea volcanoes
7. Limiting TV time -- Effective strategy for preventing weight gain in children
8. Droughts are pushing trees to the limit
9. Most coral reefs are at risk unless climate change is drastically limited
10. Plants adapt to drought but limits are looming, study finds
11. Researchers pinpoint upper safe limit of vitamin D blood levels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their ... (DCA). ... launches biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at ... process to allow eligible Delta SkyMiles Members who are enrolled in CLEAR ...
(Date:5/16/2017)... 2017  Veratad Technologies, LLC ( www.veratad.com ), an ... identity verification solutions, announced today they will participate as ... 15 thru May 17, 2017, in Washington ... Center. Identity impacts the lives of ... quickly evolving digital world, defining identity is critical to ...
(Date:4/18/2017)... -- Socionext Inc., a global expert in SoC-based imaging and computing solutions, ... which features the company,s hybrid codec technology. A demonstration utilizing TeraFaces ... will be showcased during the upcoming Medtec Japan at Tokyo Big ... Las Vegas Convention Center April 24-27. ... Click here for an image of ...
Breaking Biology News(10 mins):
(Date:8/11/2017)... Texas (PRWEB) , ... August 11, 2017 , ... A ... rebranding campaign this month that will incorporate important key elements including a new digital ... the community that has supported them, Bill Miller has partnered with the South Texas ...
(Date:8/10/2017)... ... August 09, 2017 , ... As a full-service ... its ideal customers with the right message. Their effective, cutting-edge inbound marketing strategies ... we realize how crucial the agriculture industry is,” said David Phelps, chief marketing ...
(Date:8/10/2017)... Durham, NC (PRWEB) , ... August 09, 2017 , ... ... fractures. Almost half never recover well enough to live an independent lifestyle and, even ... , A new discovery by doctors at the University of California Davis Medical ...
(Date:8/10/2017)... UK (PRWEB) , ... August 10, 2017 , ... ... a new educational webinar to demonstrate how Good Clinical Practice (GCP) can ... site documents. In addition the webinar will discuss the importance of GCP compliance, how ...
Breaking Biology Technology: