HOME >> BIOLOGY >> NEWS
Water, sediments in ice-bound antarctic lakes may harbor unique microorganisms, ecosystems

Liquid lakes buried thousands of meters below the Antarctic ice sheet are likely the home to unique habitats and creatures that thrive in them. Exploration of those lakes will therefore require extreme care and an international cooperative effort, according to a team of authors writing in the Dec. 6 issue of Nature.

The pressure exerted by the continent-wide ice sheet together with heat generated by the Earth from below and the enormous insulating properties of the overlying ice sheet, may mean that liquid water exists in many -- if not all -- of the lakes. That may mean that they harbor life, according to a team of authors, led by Martin Siegert of Bristol University.

Microbiologists funded by the National Science Foundation (NSF), working with ice samples gathered from deep beneath Russia's Vostok Station -- that is thought to be refrozen water from Lake Vostok itself -- have argued that microbes may survive in extreme cold and darkness under more than 4,000 meters of ice. John Priscu of Montana State University, one of those NSF-funded biologists, is a co-author of the paper.

Antarctica is home to more than 70 lakes that lie thousands of meters under the ice sheet. The lakes include one under the South Pole and another, Lake Vostok, deep in the Antarctic interior, that is comparable in size and depth to one of the North American Great Lakes.

Given the conditions in the lakes, the authors state, it is reasonable to believe "that subglacial lakes house a variety of microorganisms potentially unique to subglacial Antarctica and, if they are isolated hydrologically, unique to each lake."

In the Nature article, Priscu and his colleagues also argue that the sediments at the bottom of Lake Vostok, and in other lakes, may also sustain life.

They caution, though, that developing both the technology and the experimental protocols to explore those lakes without contaminating the waters or harming any microbial communit
'"/>

Contact: Peter West
pwest@nsf.gov
703-292-8070
National Science Foundation
5-Dec-2001


Page: 1 2 3

Related biology news :

1. USGS 1999 Budget Emphasizes Clean Water, Disaster Information, Species And Habitat Research
2. Nutrients, Ground Water, And The Chesapeake Bay - A Link With Pfiesteria?
3. U.S. Geological Survey 1998 Budget: Increased Support For Drinking Water, Earthquakes And Biological Sciences
4. Detoxifying sediments with electrons and UV light
5. Scripps scientists discover rich medical drug resource in deep ocean sediments
6. NSF official describes hunt for antarctic meteorites related to new meteorite evidence of primitive life on Mars
7. Ice-covered antarctic lake may harbor unknown life
8. Dramatic decline of California native frog linked to introduced trout in mountain lakes
9. Lake restrictions make lakeshore property more valuable
10. Water quality in Adirondack lakes responding to acid rain regulations
11. 50 Arctic lakes show dramatic effects of climate warming

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


(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... Report on Form 10-K on Thursday April 13, 2017 with the ... The ... section of the Company,s website at http://www.nxt-id.com  under "SEC Filings," ... 2016 Year Highlights: Acquisition of ...
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... Rosalind™, the first-ever genomics analysis platform specifically designed for life science researchers ... honor of pioneering researcher Rosalind Franklin, who made a major contribution to ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia ... be hosting a Webinar titled, “Pathology is going digital. Is your lab ready?” ... pathology adoption best practices and how Proscia improves lab economics and realizes an ...
(Date:10/11/2017)... ... October 11, 2017 , ... Singh Biotechnology ... drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of Transcription ... is able to cross the cell membrane and bind intracellular STAT3 and inhibit ...
(Date:10/10/2017)... 2017 International research firm Parks Associates announced today ... the TMA 2017 Annual Meeting , October 11 in ... home security market and how smart safety and security products impact the ... Parks Associates: Smart Home Devices: ... "The residential security market has experienced ...
Breaking Biology Technology:
Cached News: