Navigation Links
Hearty organisms discovered in bitter-cold Antarctic brine
Date:11/26/2012

EAST LANSING, Mich. Where there's water there's life even in brine beneath 60 feet of Antarctic ice, in permanent darkness and subzero temperatures.

While Lake Vida, located in the northernmost of the McMurdo Dry Valleys of East Antarctica, will never be a vacation destination, it is home to some newly discovered hearty microbes. In the current issue of the Proceedings of the National Academy of Sciences, Nathaniel Ostrom, Michigan State University zoologist, has co-authored "Microbial Life at -13C in the Brine of an Ice-Sealed Antarctic Lake."

Ostrom was part of a team that discovered an ancient thriving colony, which is estimated to have been isolated for more than 2,800 years. They live in a brine of more than 20 percent salinity that has high concentrations of ammonia, nitrogen, sulfur and supersaturated nitrous oxide the highest ever measured in a natural aquatic environment.

"It's an extreme environment the thickest lake ice on the planet, and the coldest, most stable cryo-environment on Earth," Ostrom said. "The discovery of this ecosystem gives us insight into other isolated, frozen environments on Earth, but it also gives us a potential model for life on other icy planets that harbor saline deposits and subsurface oceans, such as Jupiter's moon Europa."

On the Earth's surface, water fuels life. Plants use photosynthesis to derive energy. In contrast, at thermal vents at the ocean bottom, out of reach of the sun's rays, chemical energy released by hydrothermal processes supports life.

Life in Lake Vida lacks sunlight and oxygen. Its high concentrations of hydrogen gas, nitrate, nitrite and nitrous oxide likely provide the chemical energy used to support this novel and isolated microbial ecosystem. The high concentrations of hydrogen and nitrous oxide gases are likely derived from chemical reactions with the surrounding iron-rich rocks.

Consequently, it is likely that the chemical reac
'/>"/>

Contact: Layne Cameron
layne.cameron@cabs.msu.edu
517-353-8819
Michigan State University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Strange diet for methane consuming microorganisms
2. Plants recognise pathogenic and beneficial microorganisms
3. Small marine organisms big changes could affect world climate
4. Small organisms could dramatically impact worlds climate
5. Unusual symbiosis discovered in marine microorganisms
6. New research suggests bacteria are social microorganisms
7. Why do organisms build tissues they seemingly never use?
8. Progress of arachidonic acid biosynthesis in microorganisms
9. Genetically modified corn affects its symbiotic relationship with non-target soil organisms
10. University of Toronto biologists predict extinction for organisms with poor quality genes
11. Microbial missing link discovered after man impales hand on tree branch
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Hearty organisms discovered in bitter-cold Antarctic brine
(Date:7/11/2014)... Tenn., July 11, 2014--Researchers at the Department of ... R&D 100 awards, presented by R&D Magazine in ... , "These awards recognize the tremendous value of ... Moniz. "Research and development at the National Labs ... challenges and pursue the scientific and technological innovations ...
(Date:7/11/2014)... . X-ray ... of X-rays through a specimen instead of attenuation resulting ... often of much higher quality than those based on ... Pfeiffer are particularly interested in developing new approaches for ... imaging. One main goal is to make this method ...
(Date:7/11/2014)... Social animals often develop relationships with other group members ... In wild chacma baboons the strategy for grooming activities ... are just published in the scientific journal Biology ... of baboons is not practiced without ulterior motives. To ... for the individual, while grooming another individual can provide ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4New simple setup for X-ray phase contrast 2Baboons groom early in the day to get benefits later 2
... in German . There are many ... But how can the chemical properties of a material be ... of Technology developed a method to attach molecules at exactly ... can allow the positioning of chemical signals, telling living cells ...
... benefits of breast milk have long been appreciated, but ... a unique property that makes mother,s milk better than ... The finding, published in the August issue of ... explains how breast milk, but not infant formula, fosters ...
... it out to regulate gene expression on the DNA ... enzymes that transcribe DNA into RNA. Their repressor opponents ... coil around histone proteins, an amalgam called chromatin, effectively ... RNA strand. Both teams maneuver by chemically modifying ...
Cached Biology News:The laser beam as a '3-D painter' 2Breast milk promotes a different gut flora growth than infant formulas 2Breast milk promotes a different gut flora growth than infant formulas 3Controlling gene expression: How chromatin remodelers block a histone pass 2Controlling gene expression: How chromatin remodelers block a histone pass 3
(Date:7/13/2014)... 2014 Deep Research Report on Global and China ... on the current state of the Nano Silver industry ... basic overview of the industry, including definitions, applications and ... market analysis are provided with a focus on history, ... comparison between the international and Chinese situation is also ...
(Date:7/11/2014)... (PRWEB) July 11, 2014 BCC Research ... DIGITAL POLYMERASE CHAIN REACTION (PCR) TECHNOLOGY: GLOBAL MARKETS ... (PCR) technology reached nearly $140 billion in 2013. This ... registering a five-year compound annual growth rate (CAGR) of ... number of interesting and exciting possibilities within the broader ...
(Date:7/10/2014)... July 10, 2014 Women in ... access to an additional family planning option. Sayana® ... contraception at all levels of the health system ... of a widely used contraceptive—Pfizer’s Depo-Provera® (depot medroxyprogesterone ... Faso is the first of four African countries ...
(Date:7/10/2014)... July 10, 2014 Unraveling life’s mysteries ... The Archer Family purchased a DNA test ... but ended up with a lifetime of memories, sharing, ... the family members’ DNA genuinely brought the family closer ... search deeper into genetic history and prior to taking ...
Breaking Biology Technology:2014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 22014 Nano Silver Industry in Global and China Regions Development Proposals Analysis Available at DeepResearchReports.com 3Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 2Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 3Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 4Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 5Injectable Contraceptive Launched in Burkina Faso to Expand Choice and Address Unmet Need 6Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5
... Fusion Platform Includes Innovative Biometric ... ... 12 WCC Smart Search & Match,a leading provider of ... Systems, a leader in providing,innovative eye biometric technology for identification ...
... Throughout a ... Product,s Lifecycle, NEW YORK, Feb. ... an industry leader in patient,enrollment for clinical trials, will join the ... this partnership, Ketchum,will greatly expand the depth of services offered to ...
... (NYSE: BMY ) today announced that the company,s ... the Board. Mr. Cornelius, who,was named chief executive officer ... well. Mr. Cornelius, current employment contract, which,expires in May ... B.,Campbell, chairman, president and CEO, Textron Inc., as lead ...
Cached Biology Technology:WCC Smart Search & Match and Retica Announce Global Collaboration 2Ketchum Joins Forces with Clinical Trial Recruitment Agency MMG 2Ketchum Joins Forces with Clinical Trial Recruitment Agency MMG 3Ketchum Joins Forces with Clinical Trial Recruitment Agency MMG 4Bristol-Myers Squibb Board Elects James M. Cornelius Chairman of the Board 2
... J. Davison and Richard ... Contents include: information on ... paramyxoviruses, influenza and immunodeficiency ... analysis of viral NA ...
...
...
...
Biology Products: