HOME >> BIOLOGY >> NEWS
Life In Antarctic Ice May Compare To Mars

CORVALLIS, Ore. - Bacterial colonies are thriving underneath ice on one of the coldest, driest deserts on Earth, researchers have discovered, in conditions that might compare to those on Mars or Europa and provide insights for life forms that could be found elsewhere in our solar system.

The study will be reported Friday in the journal Science.

This study was conducted on ice-covered lakes in the McMurdo Dry Valleys of Antarctica, which has an average annual temperature about 68 degrees below zero and gets less than four inches of precipitation a year.

But in that frigid, arid environment, scientists at Oregon State University and four other institutions found liquid water pockets embedded about six feet deep in solid ice, where a combination of sediments, water and solar radiation during long summer days supports a viable population of bacteria.

"This is a very barren environment with virtually nothing we usually associate with living organisms," said Stephen Giovannoni, an associate professor of microbiology at Oregon State University. "But these photosynthetic cyanobacteria are alive, self-sufficient, and growing. They're able to live through the harsh freeze-thaw cycle of the seasons, fix nitrogen and release oxygen as they make carbohydrates from water and carbon dioxide."

"They have their own little world there we knew nothing about."

The nutritional requirements of these life forms are minimal, Giovannoni said - a little light, water, carbon dioxide, phosphate, nitrate and other minerals. But in fact the primitive life processes they are undertaking are quite similar to those that first formed the oxygen-rich atmosphere of Earth and made higher life forms possible.

And in the study, the researchers cite two locations where they feel conditions may exist that are similar to those found in barren Antarctica - Mars, and a large moon of Jupiter, Europa.

"It's been
'"/>

Contact: Stephen Giovannoni
giovanns@bcc.orst.edu
541-737-1835
Oregon State University
25-Jun-1998


Page: 1 2 3

Related biology news :

1. Dispute over life in Antarctic lake
2. Design competition for new Antarctic Research Station
3. The Hunters Breath tells a story of adventure and discovery in Antarctica
4. Antarctic fish study may aid cardiac research
5. A lost world: Two previously unknown dinosaurs discovered in Antarctica
6. Abandoned penguin colonies may help refine Antarctic climate studies
7. British Antarctic Survey wins environment award
8. Explanation offered for Antarcticas blood falls
9. Antarctic penguins thrive in ocean oases
10. Huge iceberg wreaks havoc on Antarctic marine ecosystem, study finds
11. Huge Antarctic iceberg makes a big splash on sea life

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Life Antarctic Ice May Compare Mars

(Date:2/5/2015)... 2015 Despite a lack of advancements ... as consumer electronics, automotive, storage and telecommunication has ... (SMT) screen printers. Innovations in electronics and conversion ... the adoption curve up. Meanwhile, sale volumes of ... dispensers are indispensable in the production of complex ...
(Date:1/22/2015)... 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), the ... campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz will ... capacity to meet customer demand. Logo ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by Dr. ...
(Date:1/22/2015)... OXFORD, Conn. , Jan. 20, 2015 NXT-ID, Inc. (NASDAQ: ... growing mobile commerce market, reports on the recent success of the Wocket™ ... Wocket smart wallet was named as one of the ... of the "5 Best Products Launched At CES So Far" by Newseveryday.com ...
Breaking Biology News(10 mins):End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 2End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 3FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3
(Date:2/27/2015)... 2015 The fully automated supercritical ... can sequentially analyze up to 48 samples utilizing ... detection of targets by mass spectrometry. , ... the measurement requirements of a wide range of ... delivery and search for disease biomarkers, additives in ...
(Date:2/27/2015)... February 27, 2015 FamilyFarms Group is ... Manager of State Line Farms, received the 2015 Tomorrow’s ... producer, under the age of 35, who has demonstrated ... an honor to win the Tomorrow's Top Producer Horizon ... won the Top Producer Award and learning from their ...
(Date:2/27/2015)... 27, 2015   PureTech , a science and ... disruptive products and technologies in the healthcare sector, announced ... CEO and Member of the Board of Directors of ... "It,s has been a pleasure to know Chris for ... will be working together more closely now," said Dr. ...
(Date:2/26/2015)... 2015  23andMe, the leading personal genetics company, today ... Privacy Officer and Corporate Counsel. Black brings a strong ... well as health care regulations. As a member of ... for reviewing, updating and enhancing the company,s privacy and ... She joined the company January 5, 2015 and reports ...
Breaking Biology Technology:Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3Matt Sims Receives the 2015 Tomorrow’s Top Producer Horizon Award 2Christopher Viehbacher, former CEO of Sanofi, Joins PureTech's Board of Directors 2Christopher Viehbacher, former CEO of Sanofi, Joins PureTech's Board of Directors 3Christopher Viehbacher, former CEO of Sanofi, Joins PureTech's Board of Directors 423andMe Appoints Kate Black as Privacy Officer and Corporate Counsel 2
Cached News: