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:11/7/2014)... , Nov. 7, 2014  In conjunction with the ... Police Departments, The Community Foundation of the Verdugos has announced ... DNA JUSTICE PROJECT," a $250,000 initiative to keep the Verdugo ... In its first six months of existence, the Lab has ... support for local law enforcement. "Because our number ...
(Date:11/6/2014)... cancer deaths occur because of metastasis, yet progress ... been slow. , "It,s been particularly challenging to ... Gujral, research fellow in systems biology at Harvard ... detected until after they,ve already metastasized." , Gujral ... that should help researchers better understand how metastasis ...
(Date:11/5/2014)... Santamaria, associate professor of biology in the UTSA ... in the nation selected to receive a two-year ... for Exploratory Research (EAGER). The funding supports President ... researchers to create new technology that will demystify ... complex behaviors in neuroscience are broken into the ...
Breaking Biology News(10 mins):Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2Migration negation 2Migration negation 3UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3
(Date:11/21/2014)... 20, 2014 Polaris Group announced today ... its Phase 1 trial of ADI-PEG 20 in ... of malignant pleural mesothelioma (MPM) and non-squamous non-small ... trials on ADI-PEG 20, both as monotherapy and ... of several other indications, including breast cancer, melanomas, ...
(Date:11/21/2014)... GUELPH, ON , Nov. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: ... month and nine month periods ended September 30, 2014.  Biorem,s complete ... SEDAR ( www.sedar.com ). Financial Summary:Three-months ended ... CDN$,000 except per share data) , 2014 , ... , 2,282 , 5,281 , 6,715 ...
(Date:11/18/2014)... (PRWEB) November 17, 2014 ... open architecture blade-based and rackmount computing infrastructure, today ... K80 dual-GPU accelerator throughout its GPU-enabled blade server ... of the company’s latest proprietary 80-lane Gen3 PCIe ... discrete NVIDIA Tesla K80 dual-GPU accelerator cards in ...
(Date:11/18/2014)... New Brunswick, NJ (PRWEB) November 18, 2014 ... of Data Quality and Transparency Reporting solutions, announced ... has gone live using its Consummate Provider™ solution ... Consummate Provider™ is a Global, SaaS based, Data ... Science organizations and their third party Providers improve ...
Breaking Biology Technology:Polaris Group Announces Treatment of First Patient in Phase 1 Study of ADI-PEG 20 plus Pemetrexed and Cisplatin in Malignant Pleural Mesothelioma And Non-Squamous Non-Small Cell Lung Carcinoma 2Biorem Reports Third Quarter Results 2Biorem Reports Third Quarter Results 3Cirrascale® Expands Multi-GPU Peering Solutions with Support for New NVIDIA Tesla K80 Dual-GPU Accelerators 2Cirrascale® Expands Multi-GPU Peering Solutions with Support for New NVIDIA Tesla K80 Dual-GPU Accelerators 3Alanda Software Completes Successful Implementation of Global Data Quality & Vendor Management Solution for Top Tier Global Biopharmaceutical Company 2
Cached News: