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:2/2/2016)... NEW YORK , Feb. 2, 2016 Technology ... service presents an analysis of the digital and computed ... Malaysia , and Indonesia ... current trends and market size, as well as regional ... by country and discusses market penetration and market attractiveness, ...
(Date:2/1/2016)...  Today, the first day of American Heart Month, ... a first of its kind workplace health solution that ... the first application of Watson ... and Welltok will create a new offering that combines ... delivered on Welltok,s health optimization platform. The effort is ...
(Date:1/25/2016)... , Jan. 25, 2016   Unisys Corporation (NYSE: ... John F. Kennedy (JFK) International Airport, New York City ... (CBP) identify imposters attempting to enter the United States ... to them. pilot testing of the system at ... three terminals at JFK during January 2016. --> pilot ...
Breaking Biology News(10 mins):
(Date:2/9/2016)... ... ... Date and time: March 1, 2016, 5:30 p.m. to ... of Bucks County, 3805 Old Easton Road, Doylestown, PA 18902. , The Baruch ... house for participants to learn about a new Master of Biomedical Science (MBS) ...
(Date:2/9/2016)... ... February 09, 2016 , ... The American Academy of Thermology ... offering its 2016 AAT Member Certification Qualification Course for Technicians via a two part ... which will include a detailed review of hardware, software, and camera setup/operations, aligns with ...
(Date:2/9/2016)... -- This market research report on the global microbiology ... the market in terms of revenue (USD Million). The ... manufacture of microbiology culture media and related products. The ... providing the overall information of various market segments included ... provides the overall information and data analysis of the ...
(Date:2/9/2016)... 9, 2016 DelveInsight,s, ... report provides in depth insights on the ... the Protein-Tyrosine Phosphatase 1B (PTP1B) Inhibitors. The ... various stages of development including Discovery, Pre-clinical, ... and Preregistration. Report covers the product clinical ...
Breaking Biology Technology: