HOME >> BIOLOGY >> NEWS
Microbe from depths takes life to hottest known limit

ARLINGTON, Va.--It may be small, its habitat harsh, but a newly discovered single-celled microbe leads the hottest existence known to science.

Its discoverers have preliminarily named the roughly micron-wide speck "Strain 121" for the top temperature at which it survives: 121 degrees Celsius, or about 250 degrees Fahrenheit.

Announcing Strain 121's record-breaking ability to take the heat in the August 15 issue of the journal Science, researchers Derek Lovley and Kazem Kashefi write, "The upper temperature limit for life is a key parameter for delimiting when and where life might have evolved on a hot, early Earth; the depth to which life exists in the Earth's subsurface; and the potential for life in hot, extraterrestrial environments."

Previously, the upper known temperature limit for life had been 113 C (235 F), a record held by another hyperthermophilic--or extreme-heat-liking--microbe called Pyrolobus fumarii.

The work by Lovley and Kashefi, researchers at the University of Massachusetts, Amherst, was supported by the National Science Foundation's Life in Extreme Environments program. Their NSF project may also yield clues to the formation of important ore deposits, the remediation of toxic contaminants, and more efficient recovery from petroleum reserves.

On a standard stovetop, water boils at 100 C, or 212 degrees F. Strain 121, however, comes from water at the ocean bottom, from a surreal deep-sea realm of hydrothermal vents. Heated to extremes by the earth's magma, water there spouts forth through leaks in the ocean floor. The pressure of the immense depths prevents such hot water from turning to steam--even as it sometimes emerges at temperatures near 400 C (750 F).

The sample cultured by Lovley and Kashefi was collected about 200 miles offshore from Puget Sound and nearly a mile and a half deep in the Pacific Ocean by a University of Washington team led by biological oceanographer John Baross.


'"/>

Contact: Sean Kearns
skearns@nsf.gov
703-292-7963
National Science Foundation
14-Aug-2003


Page: 1 2 3

Related biology news :

1. Microbes eat their way to better concrete
2. Microbes found in Mayan ruins may deteriorate stone from inside out
3. Microbes trick provides a template for willowy crystals
4. Microbes active in Colorado snows fuel tundra ecosystem
5. Microbes blueprints promise insights into oceans, more
6. Microbes related to infant lung infections reduced using specialized ventilation system device
7. Microbe first to break down PCBs
8. Microbe genes help scientists reconstruct animal origins
9. Microbes and the dust they ride in on pose potential health risks
10. "Microbes deep within South African gold mines" subject of NSF lecture
11. Microbes make mine-waste drinkable, Science researchers report

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/29/2016)... RATON, Florida , March 29, 2016 ... or the "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are ... DNA in ink used in a variety of writing ... theft. Buyers of originally created collectibles from athletes on ... through forensic analysis of the DNA. ...
(Date:3/18/2016)... 18, 2016 --> ... ICT, Manned & Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance ... in the border security market and the continuing migration crisis ... Europe has led visiongain to publish this ... --> defence & security companies in the ...
(Date:3/14/2016)... , Allemagne, March 14, 2016 ... ) - --> - Renvoi : image ... --> --> ... biométriques, fournit de nouveaux lecteurs d,empreintes digitales pour ... de DERMALOG sera utilisé pour produire des cartes ...
Breaking Biology News(10 mins):
(Date:5/3/2016)... May 3, 2016 - And ... and Producers of Those Competitor Biologics  - ... Activities and Prospects ,  Who are the ... And what are their sales potentials? Discover, in our ... results, trends, opportunities and revenue forecasting. ...
(Date:5/2/2016)... (PRWEB) , ... May 02, 2016 , ... ... with its clients in mind, the fresh look and added functionality give the ... “Recent years have seen a dynamic shift in agriculture – from precision farming ...
(Date:4/29/2016)... ... April 29, 2016 , ... Amendia, ... spinal surgical procedures, today announced the completion of a significant transaction and partnership ... and future customers and partners. Kohlberg & Company, L.L.C. (“Kohlberg”), a leading ...
(Date:4/29/2016)... Elekta is pleased to announce ... industry-leading treatment planning software, is available for clinical release. ... version 5.11 provides significant performance speed enhancements over ... to four times faster than in previous versions of ... standard Monte Carlo algorithm, users ...
Breaking Biology Technology:
Cached News: