Navigation Links
Ancient organisms discovered in Canadian gold mine
Date:8/20/2007

Scientists have suspected that the three known domains of life -- eukaryotes, bacteria, and archaea -- branched off and went their separate ways around three billion years ago. But pinning down the time of that split has been an elusive task.

Now, a team of scientists present direct evidence that the three domains of life coexisted at least as long as 2.7 billion years ago.

The discovery came from chemical examination of shale samples, loaded with oily lipid remains of archaea found in a deep Canadian gold mine near Timmins, Ontario, about 400 miles north of Toronto.

Details are reported in the August 20-24 early edition of the Proceedings of the National Academy of Sciences.

Fabien Kenig, associate professor of earth and environmental sciences at the University of Illinois at Chicago, and his former doctoral student Gregory Ventura, spent nearly five years carefully analyzing the shale samples, originally to compare what they found with an earlier Australian study suggesting the presence of eukaryotes some 2.7 billion years ago.

Ventura, now a post-doctoral researcher at the Woods Hole Oceanographic Institution, said initial laboratory results stunned him. "I thought there was something very wrong, that the samples were contaminated," he said.

But Kenig was more confident they were on to something significant.

They didn't learn the true value of the material until it was analyzed using a sophisticated, multi-dimensional gas chromatography instrument at the U.S. Coast Guard Academy.

When they analyzed a sample, Kenig said, they were able to pull apart its complex mixture of molecular fossils, and found it was "essentially made of archaea-derived lipids."

The archaea lived in water and sediments when the region was covered by the sea. After burial, the archaea thrived where very hot water circulated in the rocks and where gold was deposited. Later, shale containing fossilized archa
'/>"/>

Contact: Paul Francuch
francuch@uic.edu
312-996-3457
University of Illinois at Chicago
Source:Eurekalert

Page: 1 2

Related biology news :

1. Ancient olfaction protein is shared by many bugs, offering new pest control target
2. Researchers find missing genes of ancient organism
3. Family trees of ancient bacteria reveal evolutionary moves
4. Scientists find fossil proof of Egypts ancient climate
5. U-M team recovers ancient whale in Egyptian desert
6. Ancient immune defense mechanism is no match for HIV-1
7. Ancient DNA helps clarify the origins of two extinct New World horse species
8. Deep sea algae connect ancient climate, carbon dioxide and vegetation
9. Analysis of flower genes reveals the fate of an ancient gene duplication
10. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
11. Ancient DNA confirms single origin of Malagasy primates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/23/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ... authentication company focused on the growing mobile commerce market, ... for DISTRIBUTED VOICE DIRECTED PAYMENT METHOD AND ... new groundbreaking payment method. Payment accounts may be selected ... be accessed if both the speech (the word associated ...
(Date:2/18/2015)... Calif. , Feb. 18, 2015  Cepheid (NASDAQ: ... speaking at the following conferences, and invited investors to participate ... Boston, MA Tuesday, March 3, 2015 ... Investors Conference, Orlando, FL Wednesday, March ... Live Webcasts To access the live webcasts for these events, ...
(Date:2/12/2015)... Minn. , Feb. 12, 2015   ... company specializing in clinical study management systems, has ... Program , further distinguishing iMedNet ... Clinical Research Organizations (CROs) and healthcare consultants.  Building ... support, prospective customer referrals and numerous co-marketing opportunities), ...
Breaking Biology News(10 mins):NXT-ID Patents Voice Directed Payments 2NXT-ID Patents Voice Directed Payments 3Cepheid to Webcast Upcoming Financial Presentations 2MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2
... call; most lack or have only rudimentary vocal cords. A ... and then silently signals her beau. But the female ... of declaring her interest: She emits a high-pitched chirp that ... This is one of several unusual frog-related findings reported ...
... and Java ... ... high-precision biometric identification technologies, today announced,the availability of MegaMatcher 2.1 ... and multi-biometric,face-fingerprint identification systems. MegaMatcher 2.1 includes a number,of new ...
... N.J., May 9 BIO-key International, Inc.,(OTC Bulletin Board: BKYI) ... Thursday, May 15, 2008 before the market opens.,In conjunction with ... broadcast live over the Internet on Thursday, May 15, 2008 ... International, Inc. First Quarter 2008 Earnings Conference ...
Cached Biology News:Female concave-eared frogs draw mates with ultrasonic calls 2Female concave-eared frogs draw mates with ultrasonic calls 3Neurotechnology Announces MegaMatcher 2.1 SDK for Development of Large-scale AFIS and Multi-biometric Face-Fingerprint Identification Systems 2Neurotechnology Announces MegaMatcher 2.1 SDK for Development of Large-scale AFIS and Multi-biometric Face-Fingerprint Identification Systems 3Neurotechnology Announces MegaMatcher 2.1 SDK for Development of Large-scale AFIS and Multi-biometric Face-Fingerprint Identification Systems 4BIO-key(R) Announces First Quarter 2008 Earnings Release and Conference Call Schedule 2
(Date:2/27/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/p2ddnr/global_market ) ... of Trypsin" report to their offering. , ... providing comprehensive data on Trypsin globally and regionally ( ... North America , Latin America ... Trypsin This report focuses on three primary areas; ...
(Date:2/27/2015)... DIEGO , Feb. 27, 2015  Pfenex Inc. ... the development of biosimilar therapeutics, today announced that it ... Francisco Marriott Marquis on March 2 nd at ... participate on a panel discussing the current state of ... of Biosimilars . For more information ...
(Date:2/27/2015)... BOSTON , Feb. 27, 2015   PureTech ... identifying, inventing and commercializing disruptive products and technologies in ... Christopher Viehbacher , former CEO and Member of the ... Directors.  "It,s has been a pleasure ... very excited that we will be working together more ...
(Date:2/26/2015)... SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... commercializes proprietary technologies and products for advanced microarray diagnostics, ... fiscal first quarter ended December  31, 2014. All figures ... unless otherwise stated. "During the quarter ... existing customers and add to our sales pipeline," said ...
Breaking Biology Technology:Global Market Report of Trypsin 2014-2018 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 4SQI Diagnostics Reports First Quarter Financial Results 2SQI Diagnostics Reports First Quarter Financial Results 3SQI Diagnostics Reports First Quarter Financial Results 4SQI Diagnostics Reports First Quarter Financial Results 5SQI Diagnostics Reports First Quarter Financial Results 6
... Monogram announces availability of HERmark and HER1 and HER3 ... Assays ... June 2 Monogram,Biosciences, Inc. (Nasdaq: MGRM ) ... on HERmark(TM),the company,s novel oncology assay, as a means ...
... (TSH),Canada,s largest urban community hospital, has selected Chyma(TM) ... The,implementation of Chyma(TM) for their team of more ... departments at the two hospital campuses and will,soon ... "Chyma(TM) reflects the commitment of the Scarborough ...
... 2 The following release was,issued today by Thomas P. ... the New York State Common Retirement Fund, the Lead Plaintiff,in ... UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF CALIFORNIA ... MCK ) SECURITIES LITIGATION, Master File No. 99-CV-20743 ...
Cached Biology Technology:Monogram Announces Presentation of Clinical Data for the HERmark(TM) Breast Cancer Assay at the 44th ASCO Annual Meeting 2Monogram Announces Presentation of Clinical Data for the HERmark(TM) Breast Cancer Assay at the 44th ASCO Annual Meeting 3Monogram Announces Presentation of Clinical Data for the HERmark(TM) Breast Cancer Assay at the 44th ASCO Annual Meeting 4Monogram Announces Presentation of Clinical Data for the HERmark(TM) Breast Cancer Assay at the 44th ASCO Annual Meeting 5Monogram Announces Presentation of Clinical Data for the HERmark(TM) Breast Cancer Assay at the 44th ASCO Annual Meeting 6Canada's Largest Urban Community Hospital Chooses Chyma(TM) On-Call Physician Scheduling Technology 2Notice of Initial Distribution of Net Settlement Funds 2Notice of Initial Distribution of Net Settlement Funds 3
... are designed for use with the ProQuest ... MaV203 contains deletions in the endogenous GAL4 ... two-hybrid systems. The strain also has leu2 ... bait and prey vectors. MaV203 contains three ...
Anti-Cullin-1 Host: rabbit polyclonal Species Reactivity: human, mouse Applications: IHC(P), WB, IP Storage: 4C...
...
... , Maintenance 112 days/each ... , Immunizations/Boost injections x5 /each ... , Production bleed (25 ml blood ... ~ 100 ml blood (~50 ml serum) x1 each ...
Biology Products: