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:4/15/2016)... 2016  A new partnership announced today will ... decisions in a fraction of the time it ... high-value life insurance policies to consumers without requiring ... Force Diagnostics, rapid testing (A1C, Cotinine and HIV) ... pressure, weight, pulse, BMI, and activity data) available ...
(Date:3/31/2016)...   LegacyXChange, Inc. ... LegacyXChange is excited to release its first ... be launched online site for trading 100% guaranteed authentic ... also provide potential shareholders a sense of the value ... industry that is notorious for fraud. The video is ...
(Date:3/22/2016)... March 22, 2016 ... Sensors Market for Consumer Industry by Type (Image, ... Application (Communication & IT, Entertainment, Home Appliances, ... Forecast to 2022", published by MarketsandMarkets, the ... to reach USD 26.76 Billion by 2022, ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... WI (PRWEB) , ... June 23, 2016 , ... ... supplements, is pleased to announce the launch of their brand, UP4™ Probiotics, into ... for over 35 years, is proud to add Target to its list of ...
(Date:6/23/2016)... -- Houston Methodist Willowbrook Hospital has signed a ... serve as their official health care provider. As ... provide sponsorship support, athletic training services, and most ... athletes and families. "We are excited ... to bring Houston Methodist quality services and programs ...
(Date:6/23/2016)... SAN FRANCISCO , June 23, 2016   ... it has secured $1 million in debt financing from ... to ramp up automation and to advance its drug ... for its new facility. "SVB has been ... goes beyond the services a traditional bank would provide," ...
(Date:6/23/2016)... June 23, 2016 Apellis Pharmaceuticals, Inc. ... clinical trials of its complement C3 inhibitor, APL-2. ... multiple ascending dose studies designed to assess the ... subcutaneous injection in healthy adult volunteers. ... as a single dose (ranging from 45 to ...
Breaking Biology Technology: