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:8/26/2015)... The report "Multi-Factor Authentication (MFA) Market ... (Travel & Immigration, Government, Banking, Defense, Commercial Security, Consumer ... published by MarketsandMarkets, Multi-Factor Authentication Market is expected to ... CAGR of 17.7% between 2015 and 2020. ... spread through 169 P ages and ...
(Date:8/24/2015)... CAPE TOWN, South Africa , August 24, 2015 /PRNewswire/ ... awarded Germany ,s largest biometrics manufacturer DERMALOG ... with the "2015 African Biometrics Company of the ... installation in Nigeria .   ... ) and http://www.presseportal.de/nr/8896 - On Thursday ...
(Date:8/20/2015)... Aug. 20, 2015 The wearable technology ... are active and healthy. However, wearable technology has ... environment to help improve diagnostic capabilities and therapeutic ... the Wearable Technologies Conference 2015 , where ... for wearables in healthcare.    "Over ...
Breaking Biology News(10 mins):Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 2Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 3Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 4Multi-Factor Authentication Market Worth 9.60 Billion USD by 2020 5Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 2Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3
(Date:8/26/2015)... - iCo Therapeutics ("iCo" or "the Company") (TSX-V: ICO) ... quarter ended June 30, 2015. Amounts, unless specified ... under International Financial Reporting Standards ("IFRS"). ... Oral Amp B program, rapidly advancing towards the ... Rae , President & CEO of iCo Therapeutics. "We ...
(Date:8/26/2015)... ... August 26, 2015 , ... Lee Biosolutions, a global ... and manufacture of highly valued cardiac markers used in early detection of heart ... protein chemistry has led to the development and commercialization of important cardiac biomarkers ...
(Date:8/26/2015)... , Aug. 26, 2015  Platform therapeutic company ... has received a $1.5M Phase II SBIR grant ... further develop its therapeutic agent to reduce arteriovenous ... in end stage renal disease (ESRD) patients undergoing ... Institute of Diabetes and Digestive and Kidney Diseases ...
(Date:8/26/2015)... and BEIJING , August 26, 2015 ... Scene with Impressive Acheivements  DiaCardio wins 1 st ... The competition, led in Israel ... featured 21 startups from countries including the US, China ... and Latin America .  Impressive ...
Breaking Biology Technology:iCo Therapeutics Announces Second Quarter 2015 Financial Results 2iCo Therapeutics Announces Second Quarter 2015 Financial Results 3Lee Biosolutions Announces Increased Investment in the Development and Manufacturing of Biomarkers Used in Early Detection Of Heart Disease 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6
Cached News: