HOME >> BIOLOGY >> NEWS
Frozen 'lake' beneath Antarctica ideal to test sterile drilling techniques

ntarctica and Greenland in search of exotic, deep-ice bacteria new to science. With a fluorescence microscope mounted inside the cold box, they can search for the faint light emitted by fluorescing bacteria.

"With the refrigerated microscope, we can catch any microbes trapped in liquid veins in their icy habitats," Price said. "This greatly reduces the possibility of contamination. If we just looked in melted ice, we wouldn't know where the bacteria had come from."

Price laid out his reasons for looking in frozen ice for unusual microbes in a paper in the February 1, 2000, issue of PNAS. He argued that ice-loving bacteria, or psychrophiles, could easily live in interconnecting veins of liquid water formed where three ice crystals intersect. Such microbes could survive for hundreds of thousands of years at a temperature just below freezing, metabolizing but probably not multiplying. They would have to endure darkness, 400 times the pressure at the surface, no oxygen, a starvation diet and probably a highly acidic or salty environment.

He estimated that colder ice as old as 400,000 years could still support one cell per cubic centimeter.

Drilling in Antarctic ice, including to within about 100 meters of Lake Vostok, has turned up some bacteria, according to Russian scientists, but all were known before. Bacteria also have been found in ocean ice. Price and other scientists hope to discover new species in solid ice, analogous to the novel thermophiles found in hot seafloor vents living at temperatures above the sea-level boiling point of water (100C or 212F).

All this makes it essential that drills not introduce bacteria into a new environment, whether a sub-glacial lake isolated for half a million years or the ice caps of Mars. No sterile drilling has ever been achieved, Price said, though some drilling under "aseptic" conditions has been claimed. Even the sterilization procedure taken before sending the Voyager spacecraft to M
'"/>

Contact: Robert Sanders
rls@pa.urel.berkeley.edu
510-643-6998
University of California - Berkeley
1-Jul-2002


Page: 1 2 3 4 5

Related biology news :

1. The Frozen Zoo: the University of New Orleans and the new world of saving endangered species
2. Frozen pictures allow far-reaching glimpse into the cells protein factory
3. Uncovering mysteries beneath the Earths surface
4. Search beneath lawns provides insight into backyard biodiversity
5. Research finds life 1000 feet beneath ocean floor
6. URI scientists study life buried deep beneath the ocean floor
7. First global-scale assessment of biodiversity beneath our feet
8. The Hunters Breath tells a story of adventure and discovery in Antarctica
9. A lost world: Two previously unknown dinosaurs discovered in Antarctica
10. Explanation offered for Antarcticas blood falls
11. Facing extreme ice conditions, coast guard, NSF deploy second icebreaker to Antarctica

Post Your Comments:
(Date:7/31/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market and creator of the ... patent 62/198989 for ELECTRONIC CRYPTO-CURRENCY MANAGEMENT METHOD ... to advance crypto-currencies such as Bitcoin into the consumer ... way to manage all payments.  The ...
(Date:7/23/2015)... -- Aware, Inc. (NASDAQ: AWRE ), a leading supplier ... its second quarter ended June 30, 2015.  ... a decrease of 33% compared to $6.8 million in the ... of 2015 was $0.3 million, or $0.01 per diluted share, ... in the same period a year ago.  ...
(Date:7/20/2015)...  Acuity Market Intelligence,s latest research "The Global ... and Privacy" forecasts that between 2014 and 2020 ... downloaded to smart mobile devices by 2.2 billion ... projected to generate more than $67.9 billion in ... period.    "Biometrics is at the ...
Breaking Biology News(10 mins):NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2
(Date:7/30/2015)... ST. LOUIS, July 30, 2015 ... period in 2014) , Reported sales were $697 ... of 2014.  Sales grew organically by 8%, and changes ... Recent acquisitions increased sales by 1%. , By ... 8% in Applied and 11% in SAFC Commercial. ...
(Date:7/29/2015)... , July 30, 2015 ... results for the second quarter of 2015. CEO ... results and its performance in different businesses. ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics covered ... results - Performance drivers ...
(Date:7/29/2015)... CER / 20% of sales) led the regional performance in the second quarter ... as solid contributions from Korea, India and ... / Africa (Q2 2015: +3% CER / ... Turkey and the United Kingdom . The Americas ... sales, on demand across all customer classes. The top seven emerging markets (Q2 ...
(Date:7/29/2015)... ... July 29, 2015 , ... G-CON ... the launch of their 2nd generation cell therapy POD® design. The 2nd generation ... it also represents a new POD® design. , “G-CON first offered our ...
Breaking Biology Technology:Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 2Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 4Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 6Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 7Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 8Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 9Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 10Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 11Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 12Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 13Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 14Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 15Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 16Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 17Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 18Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 19Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 20QIAGEN Reports Results for Second Quarter and First Half of 2015 2QIAGEN Reports Results for Second Quarter and First Half of 2015 3QIAGEN Reports Results for Second Quarter and First Half of 2015 4QIAGEN Reports Results for Second Quarter and First Half of 2015 5QIAGEN Reports Results for Second Quarter and First Half of 2015 6QIAGEN Reports Results for Second Quarter and First Half of 2015 7QIAGEN Reports Results for Second Quarter and First Half of 2015 8QIAGEN Reports Results for Second Quarter and First Half of 2015 9QIAGEN Reports Results for Second Quarter and First Half of 2015 10G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 2G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 3
Cached News: