Navigation Links
Microbes under Greenland Ice may be preview of what scientists find under Mars' surface

l Union in San Francisco.

Variations in methane concentration in ice cores, such as the 3,053-meter-long (10,016-foot-long) core obtained by the Greenland Ice Sheet Project 2, have been used to gauge past climate. In that core, however, some segments within about 100 meters, or 300 feet, of the bottom registered levels of methane as much as 10 times higher than would be expected from trends over the past 110,000 years.

Price and his colleagues showed in their paper that these anomalous peaks can be explained by the presence in the ice of methanogens. Methanogens are common on Earth in places devoid of oxygen, such as in the rumens of cows, and could easily have been scraped up by ice flowing over the swampy subglacial soil and incorporated into some of the bottom layers of ice.

Price and his colleagues found these methanogens in the same foot-thick segments of the core where the excess methane was measured in otherwise clear ice at depths 17, 35 and 100 meters (56, 115 and 328 feet) above bedrock. They calculated that the measured amount of Archaea, frozen and barely active, could have produced the observed amount of excess methane in the ice.

"We found methanogens at precisely those depths where excess methane had been found, and nowhere else," Price said. "I think everyone would agree that this is a smoking gun."

Biologists at Pennsylvania State University had earlier analyzed ice several meters above bedrock that was dark gray in appearance because of its high silt content, and identified dozens of types of both aerobic (oxygen-loving) and anaerobic (oxygen-phobic) microbes. They estimated that 80 percent of the microbes were still alive.

Though methane has been detected in Mars' atmosphere, ultraviolet light from the sun would have broken down the amount observed in about 300 years if some process was not replenishing the methane, Price noted. While interaction of carbon-bearing fluid with basaltic rock might be r
'"/>

Source:University of California - Berkeley


Page: 1 2 3

Related biology news :

1. Researchers Discover That Microbes Can Produce Miniature Electrical Wires
2. Microbes convert Styrofoam? into biodegradable plastic
3. Microbes hitchhike across Atlantic on desert dust
4. Microbes transform safest PBDEs into more harmful compounds
5. Microbes compete with animals for food by making it stink
6. Microbes start immune response by sneaking inside cells
7. Bioartificial kidney under study at MCG
8. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
9. Zebrafish may hold key to understanding human nerve cell development
10. Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells
11. PGA on a tour under the skin
Post Your Comments:
(Date:12/4/2014)... Dec. 3, 2014  Crossmatch™, a leading provider ... its DigitalPersona ® Pro Enterprise software and ... deployed throughout First Bank branch locations in ... Carolina and Virginia. First Bank, a progressive ... Pines, North Carolina , selected the Crossmatch ...
(Date:11/21/2014)... According to a new market research report ... Control, Intrusion Detection, Parking Management, Under Vehicle Inspection), End ... - Global Forecasts to 2020", published by MarketsandMarkets, The ... $25 Billion in 2014 and is expected to reach ... 8.69%. Browse 116 market data Tables and ...
(Date:11/21/2014)... -- C-Labs LLC, a leading provider of remote and ... announced the appointment of John Traynor to ... advisor to the firm, Mr. Traynor will now oversee ... out of the C-Labs office in Redmond, ... , Chief Executive Officer. Photo - ...
Breaking Biology News(10 mins):First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... Professor Vanessa Hayes received a Celebration of African ... The awards recognised "exceptional achievements and remarkable ... education, science, research, philanthropy, leadership and community engagement ... Human Comparative Genomics Team at Sydney,s Garvan Institute ...
... each winter in Montreal. You,re walking on the sidewalk and before ... hidden under a dusting of snow. Sometimes you fall. Surprisingly often ... researchers now understand what,s going on in the brain when ... is not just a matter of good luck. Prof. Kathleen ...
... one bumblebee species from an ecosystem and the impact ... fewer seeds, a new study finds. The study, ... National Academy of Sciences , focused on the interactions ... The results show how reduced competition among pollinators disrupts ...
Cached Biology News:Professor Vanessa Hayes awarded for exceptional Africa-related work 2Professor Vanessa Hayes awarded for exceptional Africa-related work 3Keeping your balance 2Bees 'betray' their flowers when pollinator species decline 2Bees 'betray' their flowers when pollinator species decline 3Bees 'betray' their flowers when pollinator species decline 4
(Date:12/22/2014)... Fertility Associates of Memphis has announced a ... a network of more than 20 contributing fertility ... fast access to a national pool of frozen ... Associates of Memphis is the only fertility clinic in ... Dr. William Kutteh , director of Fertility Associates ...
(Date:12/19/2014)... Calif. , Dec. 19, 2014  Roche (SIX: ... of Bina Technologies, Inc. (Bina), a privately held ... , USA. Bina provides a big data ... generation sequencing (NGS) data. Bina,s proprietary on-market Genomic ... and academic researchers to perform fast and scalable ...
(Date:12/19/2014)... Fayetteville, Arkansas (PRWEB) December 18, 2014 ... plans to locate its pilot production facility and ... further develop and produce innovative new materials that ... was chosen not only because of its historic, ... regional leaders’ efforts to attract leading edge, technology-based ...
(Date:12/19/2014)... In contrast to traditional LED lights where the ... uses proprietary LED technology to incorporate their spectra in ... is critical in low proximity installations. The Valoya L-series ... lifetime which is up to four times longer than ... cost was clearly higher when compared to traditional fluorescent ...
Breaking Biology Technology:Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4
... PRINCETON, N.J., Jan. 6 WuXi AppTec, the operating ... medical device research and development outsourcing company with operations ... selection of H-Cube from ThalesNano Inc. for laboratory-based hydrogenation. ... companies worldwide that have introduced and adopted the H-Cube ...
... Therapeutics,(Nasdaq: NKTR ) President and Chief Executive ... upcoming 27th Annual J.P. Morgan Healthcare,Conference in San Francisco ... 2009 at 10:00 a.m. Pacific time (1:00 p.m. Eastern ... be accessible via a Webcast through a link posted ...
... Jan. 5 Onyx Pharmaceuticals,Inc. (Nasdaq: ONXX ... 27th Annual,JPMorgan Healthcare Conference on Monday, January 12, at ... live webcast of the presentation on our,website at: ... recommended that listeners log on 15 minutes early in ...
Cached Biology Technology:WuXi AppTec Selects H-Cube from ThalesNano for Laboratory-based Hydrogenation 2
... microarrays are derived from frozen embedded tissue ... control procedures to ensure the highest quality. ... in one block, sectioned at a thickness ... Sections are large (3-5mm in diameter) in ...
... Precision-designed for Optimal Microdissection , CapSure ... the precise and rapid extraction of populations ... cytology samples with Laser Capture Microdissection., ... Downstream Molecular Analysis , All CapSure LCM ...
... Precision-designed for Optimal Microdissection , CapSure HS ... precise and rapid extraction of populations of ... samples with Laser Capture Microdissection., Ensure ... Molecular Analysis , All CapSure LCM Caps ...
... real-time PCR detector is an optical unit ... DNA Engine or Dyad Disciple gradient-capable thermal ... compact scanning photonics shuttle that contains four ... nm, 555-585 nm, 620-650 nm) and two ...
Biology Products: