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:11/21/2014)... REDMOND, Wash. , Nov. 20, 2014 ... access for the Internet of Things (IoT), today announced ... position of chief operating officer. Previously a strategic advisor ... marketing, finance, and operations. Mr. Traynor is based out ... . He reports to Chris Muench , ...
(Date:11/18/2014)...   News Highlights: ... The Partners Data Lake, an agile data and ... will allow researcher and clinicians to explore and ... lives of patients , The Partners Data ... the Partners system, breaking down physical barriers for ...
(Date:11/15/2014)...  While we may still be a few years away ... Trek" to gain instant access to all that ailed his ... and tablets for monitoring and measuring our health are cropping ... seem a tad Orwellian to some, but a new survey ... technological opportunities into their healthcare regime. These are ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4
(Date:11/26/2014)... The announced sales of three healthcare units ... to expand in non-healthcare areas, says Kalorama Information. Siemens ... firm says that  Siemens is the third largest company ... the IVD market , with 5.5 billion in IVD ... would likely affect IVD market shares.  ...
(Date:11/26/2014)... The ETC (Emerging Technology Centers) ... announced today that applications for AccelerateBaltimore™ (AB) 2015 ... you have a big idea?,” asked ETC’s President ... about it. AccelerateBaltimore helps you and your big ... 13 weeks.” Interested game changers with “big ...
(Date:11/26/2014)... (PRWEB) November 25, 2014 Silicon Valley ... forces with RPM Alliance , provider of clinical ... companies. With the latest addition to its CRO Partnership ... validated EDC system to India. , “We have ... robust and customizable EDC platform which is both user ...
(Date:11/26/2014)... November 25, 2014 Miles Holder, formerly ... the Graphel Carbon Products team as Sales/Marketing Manager. Mr. ... and customer service for the graphite industry. , “We ... our team,” stated Dave Trinkley, VP of Market and ... range of experience in the graphite industry, along with ...
Breaking Biology Technology:Kalorama: Sale of Three Siemens Healthcare Units Raises Questions About Firm's IVD Future 2AccelerateBaltimore Applications to Close in 6 Days 2AccelerateBaltimore Applications to Close in 6 Days 3RPM Alliance Joins Clinovo’s CRO Partnership Program, Further Strengthening Its Presence in Southern California and India 2Miles Holder Joins Graphel Corporation as Sales/Marketing Manager 2
Cached News: