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:11/15/2016)... , Nov 15, 2016 Research and Markets ... Forecast to 2021" report to their offering. ... ... 16.18 Billion by 2021 from USD 6.21 Billion in 2016, growing ... Growth of the bioinformatics market is driven by the growing ...
(Date:6/27/2016)... June 27, 2016 Research and Markets has ... 2016-2020" report to their offering. ... America to grow at a CAGR of 12.28% during ... based on an in-depth market analysis with inputs from industry experts. ... the coming years. The report also includes a discussion of the ...
(Date:6/22/2016)... On Monday, the Department of Homeland Security ... solutions for the Biometric Exit Program. The Request for ... (CBP), explains that CBP intends to add biometrics to ... United States , in order to deter visa ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
Breaking Biology News(10 mins):
(Date:12/7/2016)... Regen BioPharma Inc. (OTCQB: RGBPP) In ... Sciences a team of scientists in Guangzhou, China ... that expression of NR2F6 in patients with early cervical cancer ... patient,s cervical cancer tissue as well as in the normal ... an interesting study and the first that I am aware ...
(Date:12/7/2016)... ... December 07, 2016 , ... Proscia Inc., ... new service to enable rapid migration of large pathology data sets to the ... the factors limiting adoption of digital pathology. Proscia’s free massive dataset migrator makes ...
(Date:12/7/2016)... Francisco, CA (PRWEB) , ... ... ... leader uBiome is opening applications to an early access program for SmartBiome ... of metagenomic deep-sequencing with the simultaneous specific enrichment and detection of hundreds ...
(Date:12/6/2016)... Dec. 6, 2016 The American Botanical Council ... of arnica ( Arnica montana ) through ABC,s ... HerbMedPro database, a comprehensive, interactive online ... clinical research data on the uses and health ... Naturopathica, a wellness company with healing arts ...
Breaking Biology Technology: